Portable Head and Neck Support Pillow

Abstract

The support pillow set includes a portable support pillow designed to provide optimal head and adjacent neck support for the user in upright, reclined, and supine seated positions. The pillow is optionally configured with an opening to securely support the occiput. The pillow can be configured with a taller or shorter profile. The pillow tapers to maintain the user's neck and head in proper alignment. The support pillow set is constructed from a single piece of foam that is firm and contoured to prevent head rotation and neck twisting. The support pillow is optionally configured with outer support panels to provide added utility, compressibility, stability, and comfort. The support pillow set also includes an optional adjustable strap that can be used to provide additional head support.It can be folded into a portable pillow comprising protective outer supports, a fabric or similar soft bag, or a protective cover.

Description

The present invention provides an improved support pillow that can be used for resting and sleeping at home or while traveling, for example, on an airplane. The support pillow assembly comprises a support pillow configured to optimally support a user's neck and head in upright, supine, and / or seated positions, and intermediate positions. In one or more embodiments, the pillow described herein includes a strap to better secure the invention to the user's head. The support pillow assembly further includes a pair of lateral supports that extend from the shoulders to the top of the user's head while in an upright position. The support pillow also includes a headrest between the pair of lateral supports to support the occipital portion of the head.The headrest is slightly sunken in compared to the pair of side supports, to align the user's head and neck in the forward position while the user's head is in a supine or upright position or in a reclined angle position between supine and upright. The headrest of the support pillow includes an upper portion, a middle portion, and a lower portion. The lower portion of the support pillow is configured in an arc designed to cradle the back of the neck and rest on the user's shoulders. This arc extends from one side support to the other. The upper part of the arc is at the base of the headrest, and the lower part is at the base of the side supports, resting on the shoulders in front of the user's chest. The middle portion of the headrest supports the middle of the head. In some models, the middle portion also includes an opening to support the occipital bone or back of the head. Furthermore, the area from the middle portion of the back of the headrest to the lower portion of the arc narrows to maintain proper neck alignment while the user reclines.The upper portion of the headrest supports the back of the head. This portion narrows to accommodate the head in proper alignment while resting. In some models, however, the support pillow does not need to have a hole. In some embodiments, the pillow is configured to support the neck and head of a user in a supine, inclined, or upright position. The pillow comprises a headrest portion, a first and a second support for the user's head, wherein the headrest portion is positioned between the side supports and wherein the headrest portion comprises a curved interior to support the back of the head and neck, having a larger radius in its upper portion that tapers to a smaller radius in its lower portion, and an arched lower portion, wherein the lower portion rests on the back of the user's neck, wherein furthermore the upper portion of the arched lower portion is positioned at the base of the headrest and the lower portion of the arched lower portion is positioned at the base of the side supports.the first and second ear recesses on the first and second lateral sides of the headrest portion, wherein said ear recesses are configured to receive the user's ears, and the first and second trapezius recesses on the lower part of the first and second sides of the lower arc-shaped portion, said trapezius recesses being configured to receive the user's trapezius muscle. The support pillow optionally includes a strap positioned at the bottom of the headrest to hold the pillow securely in place against the head. This strap can be attached to the headrest and tightened from side to side to secure the headrest against the user's head. Alternatively, the strap can be wrapped around the neck, starting from one of the two side supports and passing through the headrest to connect with the other. The strap also includes a connector to fasten one end to the other. This connector can be a button, a Velcro® hook and loop fastener, hooks, buckles, or similar fasteners. The strap can be used in various configurations as long as it securely holds the headrest against the user's head. A primary objective of the present invention is to provide a support pillow assembly to support a user's neck and head in positions ranging from supine to reclined or upright seated. The support pillow assembly may be made from a single piece of foam that is firm enough to provide support against head movement in a reclined seated position, such as in an airplane, or in an upright position. In one embodiment, an additional, softer layer of foam, such as viscoelastic foam (memory foam or low-resilience polyurethane (LRPu) foam) or TopiFoam®, may be used as the inner layer of the support pillow, cradling the head and neck for added comfort.In some models, unreliable air chambers are incorporated within the foam to create, among other uses, a greater capacity for the user to deflate it and store it in a book-sized cover, a soft cloth bag, or other means to compact the pillow between uses in an easy-to-use way that minimizes the size for carrying in a bag, case, or similar. zzficnn / eznz / B / YiAi In some embodiments, the pillow may be made of bio-based materials, including those of plant origin, such as, but not limited to, coconut, corn, flax, hemp, jute, sisal, soy, corn starch, hemp, natural fibers, and the like. In some embodiments, the pillow may be made of biodegradable material, such as green cell foam, corn starch, milk and clay mixtures, microcomposites, and the like. In some embodiments, the pillow described herein is made of a combination of conventional and bio-based materials. Bio-based means derived from living material such as plants or other natural materials. In some embodiments, the pillow is 5% to 95% bio-based, 10% to 80% bio-based, 20% to 70% bio-based, 30% to 60% bio-based, or 40% to 50% bio-based.In some models, the pillow is around 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90% or 95% biologically based. An objective of the present invention is to provide a soft, comfortable, and firmly constructed support pillow that provides optimal support to the head and neck while the user rests or travels in an upright and / or supine position, an intermediate position while seated, or in a reclined seated position. Another objective of the present invention is to provide a support pillow assembly that is strong enough to provide support against head movement and neck twisting, which is the main impediment to sleeping in an upright or reclined sitting position, such as in an airplane. Another objective of the present invention is to provide a support pillow assembly that is made from a single piece of polyester, polyurethane, latex, or viscoelastic or memory foam. Another objective of the present invention is to provide a support pillow assembly having a concave recess for the occiput to rest on and adapting to the cervical region to support its natural lordosis when the user reclines their head while resting or traveling. In some embodiments, the description provides a foldable pillow for supporting the neck and head of a user in a supine position. In some embodiments, the pillow assembly comprises a headrest portion and first and second supports for supporting the user's head, wherein the headrest portion is positioned between the supports and the headrest portion includes a curved interior to support the back of the head. Furthermore, the support pillow includes a lower arc-shaped portion, where the lower portion rests on the user's shoulder, and where the upper portion of the lower arc-shaped portion is positioned at the base of the headrest and the lower portion of the lower arc-shaped portion is positioned at the base of the pair of side supports.The pillow also comprises a rigid support at the back of the pillow, a rigid support at the front of the first side support, and a rigid support on the outside of the second side support. In some embodiments, the pillow further contains a notch on the inside of the first side support, the notch being configured to receive an inner front edge of the second side support. In some embodiments, the rigid support on the back of the pillow covers 60% of the back of the pillow. In some embodiments, the rigid support is flush with the outside of the first side support. In some embodiments, this description provides a method for carrying a portable pillow comprising folding the second side support of the folding pillow, as described herein, toward the first side support and fitting the inner edge of the second side support into the notch of the first side support. For the modality of the foregoing and related objects, this invention can be put into practice in the manner illustrated in the accompanying figures; however, attention is drawn to the fact that the figures are illustrative only and that changes may be made to the specific construction illustrated and described within the scope of the accompanying claims. Although the invention has been described above in terms of several illustrative embodiments and implementations, it should be understood that the various features, aspects, and functionalities described in one or more of the individual embodiments are not limited in their applicability to the particular embodiment with which they are described, but instead may be applied, alone or in various combinations, to one or more of the other embodiments of the invention, whether or not the embodiments are described and whether or not the features are presented as part of a described embodiment. Therefore, the breadth and scope of the present invention should not be limited by any of the illustrative embodiments described above. The presence of expanding words and phrases such as around, about, one or more, at least, but not limited to, or other similar phrases in some cases shall not be construed as implying or requiring the more restrictive case where such expanding phrases may be absent. Around or about means that a measure is within 10% above or below a cited measure. BRIEF DESCRIPTION OF THE FIGURES zzficnn / eznz / B / YiAi The objects and features of the present invention will become more apparent from the following description and the accompanying claims, taken in conjunction with the accompanying figures. It is understood that these figures represent only typical embodiments of the invention and, therefore, should not be considered limiting of its scope. The invention will be described and explained with further specificity and detail by means of the accompanying figures, in which: Figure 1 illustrates a perspective view of a support pillow; Figure 2A illustrates a front view of a support pillow headrest according to the present invention. Figure 2B illustrates a rear view of the support pillow headrest according to the present invention. Figure 2C illustrates a side view of the support pillow headrest as seen from the head, according to the present invention. Figure 2D illustrates a side view of the support pillow headrest as seen from the head, according to the present invention. Figure 2E illustrates a top view of the support pillow headrest according to the present invention. Figure 2F illustrates a bottom view of the support pillow headrest according to the present invention. Figure 3 illustrates a support pillow that has narrow sides in which the back is longer than the front. Figure 4 illustrates a support pillow strap according to the present invention. Figure 5 illustrates a perspective view of the support pillow assembly. Figure 6 represents a front view of the portable support pillow described in this description. Figure 7 represents a front view of the portable support pillow described in this description. Figure 8 represents a top view of the portable support pillow described in this description. Figure 9 represents a front view of the portable support pillow described herein, including the rigid front support. Figure 10 represents a front view of the portable support pillow described herein, including the rigid front support. Figure 11 represents a perspective view of the portable support pillow described herein, which includes a rigid side support. Figure 12 represents a perspective view of the portable support pillow described in the present description, which includes a rigid back support. Figure 13A represents a bottom view of the folded support pillow described herein; Figure 13B represents a perspective view of a folded support pillow described herein; Figure 13C represents a bottom view of a folded and compressed support pillow described herein; Figure 13D represents a front view of a folded support pillow described herein; Figure 13E represents a rear view of the support pillow described herein showing a sliding backplate in the extended position; Figure 13F represents a bottom view of the folded pillow when folded side to side; Figure 13G represents a bottom view of the folded and compressed pillow when folded side to side. Figure 14 represents a front view of the support pillow. Figure 15 represents a front perspective view of the support pillow. Figure 16 represents a rear perspective view of the support pillow. Figure 17A and Figure 17B represent a top view of the support pillow. Figure 18 represents a bottom view of the support pillow. Figure 19 represents a bottom perspective view of the support pillow. Figure 20 represents a rear perspective view of the support pillow. Figure 21 represents a side view of the support pillow. Figure 22 represents a rear view of the support pillow. Figure 23 represents a side view of the support pillow. Figure 24 represents a front view of the support pillow. Figure 25 represents a bottom view of the support pillow. Figure 26 represents an inverted (upside-down) rear view of the support pillow. Figure 27 represents a top view of the support pillow. Figure 28A shows a front view of the support pillow. Figure 28B shows a side view of the support pillow. Figure 28C shows a rear view of the support pillow. Figure 29 represents an inside view of one side of the support pillow. Figure 30 represents an exterior view of one side of the support pillow. Figure 31 represents a front view of the support pillow. zzficnn / eznz / B / YiAi Figure 32A shows a rear view of a shorter support pillow. Figure 32B shows a shorter support pillow with rounded edges. Figure 33A shows a bottom view of a shorter support pillow. Figure 33B shows a shorter support pillow with rounded edges. Figure 34A shows a side view of a shorter support pillow. Figure 34B shows a shorter support pillow with rounded edges. Figure 35A shows an interior side view of a shorter support pillow. Figure 35B shows a shorter support pillow with rounded edges. Figure 36A shows a top view of a shorter support pillow. Figure 36B shows a shorter support pillow with rounded edges. Figures 37A-37D depict the multi-compartment carrier described herein. Figure 37A shows a closed, single-hinged system. Figure 37B shows an open, single-hinged system. Figure 37C shows a closed, double-hinged system. Figure 37D shows an open, double-hinged system. Figure 38 represents the viscoelastic insert (memory foam) or similar soft foam. Figure 39 represents a top view of the pillow with an extension behind each lateral support that is triangular in shape when viewed from above or below and extends from 1.27 cm (1 / 2 inch) to 2.54 cm (1 inch) backward at its thickest portion. Figure 40 depicts a pillow with button-shaped extensions that help tilt the front portion of the side supports inward to better fit the user's head and neck when the user's head presses the pillow's headrest portion against the seat back, bed, or other surface. Figure 41 depicts a pillow with inward-sloping side headrests to provide additional support so that the head faces directly forward and tilting to the sides is minimized. Figure 42 represents a pillow containing air chambers and an external nozzle for inflating and deflating these air chambers. Figure 43A shows a pillow with an attachable elastic band, or a pair of elastic bands, for compression to a smaller size. Figure 43B shows a pillow compressed by the attachable elastic band(s). Figure 43C shows an alternative configuration of a pillow with an attachable elastic band, or a pair of bands, for compression to a smaller size. Figure 43D shows an alternative configuration of a pillow compressed by the attachable elastic band(s). zzficnn / eznz / B / YiAi Figure 44 shows the pillow with a connecting device for attaching it to the backrest of an airplane seat. In some embodiments, the pillow is (as depicted) part of an integrated airplane seat backrest design. Figure 45 represents a side view of the support pillow with an alternative configuration. Figure 46 represents a side view of the support pillow with an alternative configuration. Figure 47 represents a side view of the support pillow with an alternative configuration. DETAILED DESCRIPTION OF THE INVENTION A variety of travel pillows have been described. One such example is described in US Patent No. 9434283, assigned to Danami LLC, which describes a travel pillow for use in vehicle seats, such as airplanes, especially during long journeys. The travel pillow provides anterior support to the head while restricting any twisting motion of the head in the forward and / or lateral directions. Although the pillow described therein provides support for the head and neck, it is too bulky around the back of the neck in a way that particularly compromises its usefulness in reclining or upright positions, as it forces the head and neck forward. Furthermore, it does not rest on the shoulders when used in reclining or upright positions, preventing it from adequately stabilizing the head and neck, as is required for resting or sleeping in those positions. Another Korean patent, KR101538695, granted to Younghwan Park, describes a three-dimensional pillow that allows for comfortable rest while seated in a chair by enabling the head and neck to maintain a stable posture at all times while traveling. The travel pillow described in the patent can provide adequate support for the neck and head while the person sleeps. However, the pillow does not provide enough space to align the neck in an upright or vertical position. Another example is US Patent No. 8584285B1 assigned to Ryan Sipherd, which describes a contoured U-shaped travel pillow for neck and lateral head support. This pillow supports the head and neck from the back but relies on a deflection relief groove on the back to bend the head buttresses inward to provide lateral head and neck support. This design lacks buttresses of adequate depth to provide lateral head and neck support and does not rest on or conform to the shoulders in a way that resists lateral head and neck movement or twisting while sitting in a semi-reclined or upright position. Given the design flaws in prior art travel pillows, there is a significant need for an improved pillow to optimally and comfortably stabilize a user's head and / or neck. This is generally described herein as a support pillow and in some forms is referred to as a travel pillow. In particular, there is a need for a support pillow that is adjustable and customizable to maximize user comfort. For example, there is a need to develop a support pillow that does not push the head forward or allow the head to fall forward, backward, or to the side. Accordingly, this description provides an improved support pillow that is configured to support a user's head and / or neck in multiple positions while resting or sleeping in an upright or reclined seated position, such as in an airplane. "Reclining" is defined as any degree of reclining from the upright to the horizontal position on the user's back. In some applications, the pillow is used in a medical setting. In this application, the pillow is not necessary for travel, but it can be used in a hospital, a doctor's office, or the patient's home after surgery. It is understood that after many surgical procedures, the patient should remain in an upright position with their back and / or head elevated, even while sleeping, and in some cases, at all times. Existing pillows do not provide the necessary level of support, and patients frequently report struggling to maintain the correct position. However, the pillow described herein provides sufficient support to the back of the head, as well as to the sides, to prevent the problematic lateral movement that is too often experienced by patients using other pillows.Accordingly, this pillow is used for recovery in a medical facility, hotel, or home. In some settings, it is used as an adjunct device to immobilize (hold still) the head and neck for therapeutic or health-related reasons, such as when combined with the use of a CPAP (continuous positive airway pressure) machine, supplemental oxygen, or similar devices; and to improve sleep for those with diagnosed conditions or a psychological / physiological / comfort preference for sleeping on their back, or the full spectrum of medical or post-surgical conditions that require the patient to sleep exclusively or predominantly in a strictly supine or inclined position (back elevated any amount up to and including 90 degrees in an upright position).In addition to the above, these conditions include, but are not limited to, pulmonary and cardiac ailments in which it is necessary to position oneself inclined or upright to force caudal displacement of edema fluid (toward the base of the thoracic cavity) and / or improve diaphragmatic excursion, or otherwise improve symptoms, including, but not limited to, orthopnea and paroxysmal nocturnal dyspnea (PND). In these medical modalities, the pillow may have wider dimensions for stability, with the sides of the headrests (106a and 106b or 206a and 206b) increased from 2.54–5.08 cm to 12.7–17.78 cm (1–2 to 5–7) as shown in Figure 1 and Figures 2A–2F, respectively. In some embodiments, the present invention allows the shoulders and upper back to provide greater support to the head and neck when they are not in a fully supine position. The pillow can be constructed from a single piece or multiple pieces of foam that provide excellent vertical support, lateral support, and cushioning for the user's head. Some pillow designs incorporate inflatable air chambers within the foam. The headrest is soft yet firm enough to provide support against head rotation and neck twisting, whether in a reclined seating position, such as on an airplane, or while sleeping in an upward-facing position at any angle relative to the supine position. The pillow features a concave recess to cradle the back of the head and conforms to the cervical region to support its natural lordosis. Figure 1 illustrates a perspective view of one embodiment of the support pillow (102) incorporating aspects of the present invention. The support pillow has a length (1), a height (h), and a width (w), and is configured to support the neck and / or head of a user while the user rests in a seated position. The support pillow (102) also provides vertical and lateral support to the user's head. The support pillow (102) further comprises a headrest (104) and a pair of side supports (106), the latter of which in some embodiments may be identical, and which are configured to cover the left and right sides of the user's head. Each side support (106a, 106b) is configured to cover the left and right sides of the user's head, from the shoulder to the temporoparietal portion of the head.The support pillow (102) can be customized according to the user, that is, it can be sized and shaped to fit the approximate shape of the user's head. In some models, the support pillow is configured to accommodate an average-sized human head. Each side support (106a, 106b) can be sized or otherwise configured with recesses that comfortably accommodate the ears when the head is at least in the center forward-facing position. In some models, the pillow is configured with ear holes or recessed cavities in the sides of the pillow so that the pillow makes contact with the head without significantly compressing the user's ears. In some models, an additional softer layer of foam, measuring from 1 / 2" to 1" thick, lines the inside of the pillow.This foam layer is placed inside the head / neck recess so that its dimensions roughly match the existing radius. It can be made of a softer foam than the rest of the pillow, such as viscoelastic foam (memory foam or low-resilience polyurethane (LRPu) foam), TopiFoam®, or similar softer foam or material. (See Figure 38). The headrest (104) of the support pillow is further recessed in a concave shape between the pair of headrests (106) to support the back of the head. The headrest (104) is recessed inward to align the user's head and neck in the forward anatomical position when the user is resting or sleeping, such as during travel. The headrest (104) of the support pillow (102) further includes an upper portion, a middle portion, and a lower portion. The upper portion of the headrest (104) of the support pillow (102) supports the posterior (occipital) and lateral (temporoparietal) portions of the user's head. In one embodiment of the present invention, the upper portion of the headrest (104) narrows to accommodate the head in the appropriate alignment as the user reclines their head during rest. The central portion of the headrest (104) of the support pillow (102) supports the middle portion of the head. The central portion further comprises an opening, in some embodiments, to support the occipital portion of the head. In the shorter embodiment of the support pillow (diagrammed in Figures 32A-36B), the upper portion of the headrest supports the back of the head and neck around the level of the craniocervical or mastoid junction. The lower portion of the support pillow (102) is arched to support the pillow (102) on the user's shoulder, ensuring that it remains in position without falling off and providing the necessary stability to the pillow and consequently to the user's head and neck. In one embodiment of the present invention, the upper part of the lower arched portion is at the base of the headrest (104), and the lower part of the same is at the base of the headrest (106a, 106b) of the support pillow (102) and arches forward of the user so that the lower sides rest on the user's clavicles, shoulders, and / or chest. The support pillow (102) can be made from a single-piece foam material. The single-piece foam material is designed and configured to form a head and neck support portion of the support pillow (102). Typically, the single-piece support pillow (102) includes a pair of side supports (106) on each side of a headrest (104). The side supports (106) are angled upwards relative to the headrest (104) to support the left and right sides of the head. The thickness of the headrest (104) tapers symmetrically towards the midline of the pillow (102). Alternatively, the single-piece support pillow (102) includes a pair of side supports (106) on each side of a headrest (104). In some embodiments, the pair of side supports (106) are not identical.The lateral supports will also be customizable to accommodate a variety of anatomical variations and / or user preferences. This customization is expected to occur, among other means, based on hand-drawn and / or three-dimensional digital images of the user's head, neck, and shoulder dimensions. In one embodiment of the present invention, the support pillow (102) is made of a conformable foam material that adapts to the shape of the user's head, neck, and shoulder, and this support provides additional comfort and stability to the shoulder. In some embodiments, the support pillow (102) is constructed of viscoelastic foam or memory foam. In an alternative embodiment, the foam is polyurethane foam or latex foam. The main body of the device can be made of high-pressure compression-molded polyurethane with a density of approximately 4.0046–16.0185 kg / m³ (0.25–1 lb / ft³), or some other type of foam with suitable softness and resilience to provide a balanced firm construction for stability and adequate softness for comfort. In some models, the density ranges from 4.0046 kg / m³ (0.25 lb / ft³) to 80.0925 kg / m³ (5 lb / ft³), or from 8.00925 kg / m³ (0.5 lb / ft³) to 16.0185 kg / m³ (1.5 lb / ft³). The devices can be machine-cut from the material or molded according to established practices. zzficnn / eznz / B / YiAi In one embodiment, the foam or other external material(s) are coated with a layer that allows for surface cleaning and sterilization and improves comfort and appearance. In some embodiments, this coating may be smooth polyurethane or plastic and may have a thickness of 0.01 to approximately 2.5 mm. In some embodiments, it may have a thickness of 0.5 to 2 mm. This layer may be applied through an external spraying process or by an alternative foam manufacturing method that generates this outer layer as an integral part of the foam's outer surface. Pillows can be exposed to a variety of elements, including dirt and grime, blood, sweat, tears, viruses (including SARS-CoV-2), bacteria, and other pathogens. The surface coating (or simply the outer surface of the pillow) offers the unique and timely advantage of not requiring a washing machine or handwashing process, which is not readily available when traveling away from home or with the amenities typically found at home or nearby. Alternatively, it can be replaced by a simple cleaning with alcohol or another disinfectant, which is both more convenient and more effective. In some versions, the pillow surface and / or the pillow itself may be impregnated with copper or other substances known to have antimicrobial properties, including resistance to COVID-19 and other contagious viruses and pathogens. In an alternative embodiment, the support pillow (102) can also be supplied with a removable cover or liner to protect the pillow, which can be removed for cleaning or replacement. The removable cover can be designed to fit the dimensions and design of the support pillow (102) or be more loosely fitted. The cover of the support pillow (102) is primarily made of a soft fabric, such as wool, cotton, or silk. Other materials may be used depending on environmental considerations, health and microbial concerns, or user preferences. Figure 2A illustrates a front view of the support pillow (202) constructed from a single piece of foam, showing the headrest (204) and a pair of side supports (206a, 206b) of the support pillow (202). The headrest (204) primarily comprises an upper portion (204a), a middle portion with a hole for the headrest (204b), and the lower portion of the headrest (204c). In some embodiments, the middle portion lacks a hole. In some embodiments, the upper portion tapers from thicker at the top to thinner towards the hole for the headrest (204b). In some embodiments, the lower portion (204c) tapers from thicker at the bottom to thinner towards the hole for the headrest (204b). The headrest opening (204b) is configured to support the back of the user's head. The lower portion (204c) is configured in an arc shape.In some embodiments, the hole can also act as a cup holder or tray when the support pillow (202) is not in use or when the pillow is placed face down on the user's knee. In one embodiment of the present invention, the hole (204b) is circular. In alternative embodiments of the present invention, the shape of the hole (204b) is elliptical, square, triangular, or any other shape. In one alternative embodiment of the present invention, the diameter of the hole (204b) is approximately 2–15 cm. In some embodiments, the diameter of the hole is 5–10 cm. In some embodiments, the hole is between 6–8 cm, and in some embodiments, the hole has a diameter of approximately 7 cm. In some embodiments, there is no hole in the back of the pillow. In some embodiments, the length of the support pillow (202) ranges from 20–60 cm. Those skilled in the art will appreciate that some measurements described herein are given in centimeters (metric), while others are given in inches (imperial). These measurements are easily convertible using the conversion: 1 inch = 2.54 cm. In some models, the length of the support pillow can be around 25–50 cm or 30–40 cm. More specifically, the length of the support pillow (202) is about 30 cm. In some models, particularly when the support pillow is to be used in medical applications, the total length of the headrest is increased to around 60 cm. In one design, the upper portion supports the back of the head and tapers to create a concave recess that extends from the bottom of the upper portion to the top of the upper portion. In some designs, the concave region is recessed from 9 to 13 cm relative to the plane formed from the front of each side of the pillow, and the radius of curvature of the recessed region is longer at the top than at the bottom. In one design, the concave recess is configured to support the back of the head and neck and to maintain the head and neck in proper alignment. In one embodiment, the upper portion comprises a recessed concave region extending from the lower part of the upper portion to the upper part of the upper portion, wherein the concave region has a semicircular or semielliptical shape when viewed from the top or bottom, ranging from 180 degrees to 220 degrees of a full circle, preferably from 205 to 215 degrees, with a radius (exact if circular, average if elliptical) at the top of the upper portion of between 4 cm and 10 cm, preferably between 5 and 8 cm; and at the bottom of the upper portion between 3 cm and 8 cm, preferably between 4.5 cm and 6 cm; and tapering uniformly between these two radii into a partially inverted truncated cone shape. In one embodiment, the upper portion comprises a recessed concave region extending from the bottom of the upper portion to the top of the upper portion, wherein the concave region has a semicircular or semi-elliptical shape when viewed from the top or bottom, ranging from 180 to 220 degrees of a full circle, preferably from 205 to 215 degrees, with a radius (exact if circular, average if elliptical) in the upper part of the upper portion of between 4 cm and 10 cm, preferably between 5 and 8 cm; and in the lower part of the upper portion of between 3 cm and 8 cm, preferably between 4.5 cm and 6 cm, and tapering uniformly between those two radii in a shape that matches that of the average posterior male head and neck (see attached diagrams), or the average posterior female head and neck, and the contours of the human head and neck that match sizes interposed between the average male and average female, as well as those head sizes between 1 and 10 percent larger than the average male head and neck (which has a circumference of 57 cm (22 * / 2 inches)) and between 1 and 10 percent smaller than the average female head and neck (which has a circumference of 55 cm (22 ½ inches)). In one configuration, the width of the headrest at its upper portion (204) ranges from approximately 8 cm to approximately 20 cm. More specifically, the width of the headrest (204) is approximately 9 cm to 14 cm. Furthermore, the height of the headrest (204) ranges from 10 cm to 26 cm. More specifically, the height of the headrest portion (204) ranges from 17.5 cm at its rearmost point to 21.25 cm at its frontmost point. The lower portion (204c) of the headrest (204) curves in an arc at a certain height from the bottom of the headrest (206a, 206b). For example, the height at which the lower portion curves ranges from about 6 cm to about 16 cm. More specifically, the height of the lower arc of the side support (206) is about 6 cm from the bottom of the pillow to the bottom of the headrest (204). In other words, the distance between the top of the arc at the base of the headrest (204) and the bottom of the arc at the front base of the headrest (206a, 206b) is about 6 cm. This distance can vary from 4 cm to 8 cm. zzficnn / eznz / B / YiAi Also, as shown in Figure 2A, it is evident that the side supports (206a, 206b) are separated by a specific distance, depending on the anatomy of the user's head, neck, and shoulders, so that the support pillow easily accommodates users of different sizes. The distance between the side supports (206a, 206b) ranges from approximately 9 cm to approximately 26 cm. More specifically, the distance between the side supports (206a, 206b) is approximately 12 cm to 16 cm. In some models, the distance between the side supports is 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or 26 cm. In some models, the length of the support pillow (202) is approximately 25-60 cm.More specifically, the length of the support pillow (202) is about 27 cm. Figure 2B illustrates a rear view of the support pillow (202) constructed from a single piece of foam, showing the back portion of the support pillow (202). The length of the support pillow (202) is approximately 25–40 cm in some models. More specifically, the length of the support pillow (202) is about 27 cm. Figure 2C illustrates a side view of the headrest of the support pillow (202) constructed from a single piece of foam, showing a view of the side support (206a) of the support pillow (202). The front of the support pillow is on the right. The back of the support pillow is on the left. In one embodiment according to the invention, the side support (206a) has a height ranging from about 20 cm to about 35 cm. In some embodiments, the side support has a height of about 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or 35 cm. More particularly, the height of the side support (206) is about 22 cm.For a larger or smaller size pillow, the dimensions of the support pillow (202) would be increased or decreased, respectively, to suit the anatomy of the head, neck, and shoulders of a user of that size, the same thing that is known by an ordinary expert in the technique. Figure 2D illustrates a side view of the support pillow (202) constructed from a single piece of foam, showing a view of the side support (206b) of the support pillow (202). The front of the support pillow is on the left. The back of the support pillow is on the right. The side support (206b) has a height ranging from approximately 20 cm to approximately 35 cm. In some versions, the side support is approximately 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, or 35 cm high. More specifically, the height of the side support (206) is approximately 22 cm. In some forms, the left and right side supports (206a, 206b) are identical, although this is not required in all forms. That is, in some forms the sides are not identical. Figure 2E illustrates a top view of the support pillow (202) showing the upper portion of the headrest (204). As shown in Figure 2E, the headrest portion (204) curves upward (204a) from the center within the headrest. It is evident from this figure that the thickness of this portion decreases as the headrest (202) curves upward. The radius of curvature of the headrest (204) ranges from 4 cm to 16 cm. In some models, the radius of curvature ranges from 5 cm to 14 cm. In some models, it ranges from 6 cm to 12 cm. In some models, the radius of curvature of the headrest is approximately 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, or 16 cm. In some models, the radius of curvature at the upper edge of the headrest is greater than at the lower edge.In this configuration, the radius of curvature at the upper edge or top of the headrest is approximately 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, 10 cm, 11 cm, 12 cm, 13 cm, 14 cm, 15 cm, or 16 cm. In some configurations, the radius of curvature at the lower edge or bottom of the headrest is approximately 2 cm to approximately 12 cm, or approximately 3 cm to approximately 10 cm, or approximately 4 cm to 8 cm. In some models, the radius of curvature at the lower edge or bottom of the headrest is approximately 2 cm, 2.5 cm, 3 cm, 3.5 cm, 4 cm, 4.5 cm, 5 cm, 5.5 cm, 6 cm, 6.5 cm, 7 cm, 7.5 cm, 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10 cm, 10.5 cm, 11 cm, 11.5 cm, or 12 cm. An acceptable average radius of curvature is 7.5 cm. In some models, the radius of curvature is 2.5 to 6.25 cm, meaning the diameter is 5 to 12.5 cm. Figure 2F illustrates an underside view of the support pillow (202) showing the underside of the headrest (204). The region from the center portion of the hole to the lower portion of the arc-shaped lower portion (204c) is carved to accommodate the user's neck in proper alignment while the user reclines their head during rest. Figure 3 illustrates an alternative configuration of the support pillow (202). In this configuration, the support pillow comprises tapered sides, with the front being shorter than the back. This configuration is useful when space is limited for the traveler, such as when the pillow must fit under existing headrests like those commonly found on aircraft seatbacks, and the pillow's smaller profile is advantageous. For example, as illustrated in the figure, the back of the support pillow can be approximately 14–20 cm long, with 16–18 cm being the most preferred, and 18 cm high, while the front can be approximately 10–15 cm long, with 12–14 cm being the most preferred, and 14 cm high.In some models, the height of the front of the support pillow is 5%, 10%, 15%, 20%, 25% or 30% shorter than the height of the back of the support pillow. Figure 4 illustrates a strap 402 of the support pillow assembly 500 (see Figure 5) according to the present invention. In this embodiment, a strap (402) is provided to secure the support pillow (102) in place against the head. The strap (402) can be coupled with the support pillow (102) in a variety of configurations. Considering the support pillow of Figure 1, the strap (402) can be positioned at the bottom of the support pillow (102) to hold the support pillow (102) in place relative to the user's head. In one configuration, the strap (402) extends in front of the neck, starting from one side support (106) and reaching to the other side support (106). The strap (400) can be made of elastic material, sufficiently stretchable to accommodate the user's neck. Furthermore, the strap (400) provides the necessary support to hold the headrest in place relative to the user's head. The strap can also be made of elastic cotton material. In other embodiments, the strap can also be a belt that supports the support pillow (102) in place relative to the user's head. In one embodiment of the present invention, the width of the strap ranges from approximately 4.5 cm to 6 cm. More particularly, the width of the strap is approximately 4.5 cm, which secures the support pillow (102) in place relative to the user's head. The strap (400) comprises a central component (402), which can be made of a variety of materials, and a connector with a male member (404) and a female member (406) to secure one end of the central component (402) to the other. Primarily, the connector is made of a Velero® hook and loop assembly, connectors with a male and a female member. Alternatively, the connector can be a button, hooks, magnets, and / or buckles to connect the ends of the strap (400) together. zzficnn / eznz / B / YiAi Figure 5 illustrates a perspective view of the support pillow assembly (500). According to the present invention, the support pillow assembly (500) comprises a support pillow (502) configured to support the neck and / or head of a user in a supine, reclined, or upright position. The support pillow (502) also provides vertical and lateral support to the user's head. The support pillow (502) further comprises a headrest (504) and a pair of headrests (506), which in some embodiments may be identical, and which are configured to cover the left and right sides of the user's head. Each lateral support (506a, 506b) is configured to cover the left and right sides of the user's head, from the shoulder to the top of the head.The side supports (506a, 506b) may be sized so that the user's ears do not come into contact with the support pillow when the head is at least in the central forward-facing position. The headrest (504) of the support pillow is further recessed in a concave shape between the pair of side supports (106) to support the back of the head. The headrest (504) is pressed inward to align the user's head and neck in the forward-facing position when the user is resting or sleeping during travel. The headrest (504) of the support pillow (502) further includes an upper portion, a middle portion, and a lower portion. The upper portion of the headrest (504) of the support pillow (502) supports the back or upper portion of the user's head. In one embodiment of the present invention, the upper portion of the headrest (504) narrows to accommodate the head in the appropriate alignment as the user reclines their head during rest. The middle portion of the headrest (504) of the support pillow (502) supports the middle posterior (occipital) portion of the head. In some embodiments, the middle portion further comprises an opening to support the occipital part of the head. The lower portion of the support pillow (502) is arched to support the support pillow (502) on the user's shoulder, so that it remains in position without falling off. In one embodiment of the present invention, the upper part of the lower arched portion is at the base of the back support (504), and the lower part of the same is at the base of the side support (506a, 506b) of the support pillow (502) and arches toward the front of the user so that the lower part of the sides rests on the user's shoulder and chest. zzficnn / eznz / B / YiAi In some embodiments, the support pillow assembly (500) further comprises a strap (400) that is positioned at the bottom of the support pillow (502) to hold the support pillow (502) in place relative to the user's head. The strap (400) can be configured to wrap around the front of the user's neck, starting from one of the side supports (506a) and connecting to another side support (506b). Alternatively, the strap (400) can be wrapped around the support pillow and, in some embodiments, can rest against the back of the user's neck. The strap (400) is preferably used to secure the support pillow (502) to the user in various support configurations. The strap (400) is preferably made of a durable, elastic material that easily adjusts around the user's neck.The strap length (400) can be adjusted depending on the size and shape of the user's head and neck. The optional strap (400) also includes a male and a female member that can be joined using a connector to secure one side of the strap (400) to the other. In one configuration, the connector is a Velero® hook-and-loop type connection. In another configuration, the connector can be a button, a magnet, a hook and / or loop, or other detachable fasteners to allow the strap to be attached to securely hold the pillow in different orientations. The support pillow assembly (500) includes a support pillow (502), which is made of a single-piece foam material. The single-piece foam material is designed and configured to form a head and neck support portion of the support pillow (502). Primarily, the single-piece support pillow (502) includes a pair of side supports (506) on each side of a headrest (504). The side supports (506) are angled upwards relative to the headrest (504) to support the left and right portions of the head. The thickness of each side support decreases symmetrically towards the headrest (504) of the support pillow (502). Alternatively, the single-piece support pillow (502) includes a pair of side supports (506) on each side of a headrest (504). In some modalities, the pair of lateral supports (506) are not identical. The support pillow assembly in some forms (500) further includes a strap (400) placed at the bottom of the support pillow (502), where the strap (400) is wound from one of the side supports to the other side support (506). In one embodiment of the present invention, the support pillow (502) of the support pillow assembly (500) is made of a conformable foam material that adapts to the shape of the user's head, neck, and shoulders, and this support provides additional comfort and stability to the shoulder. In some embodiments, the support pillow (502) is constructed wholly or partially from memory foam, TopiFoam®, or viscoelastic foam. In an alternative embodiment, the foam is polyurethane foam or latex foam. In some embodiments of the support pillow, a thin coating may be applied as the outer layer of the pillow and / or any of its storage accessories, cover, strap, utility collapse mechanism, or rigid support surfaces to facilitate cleaning of pathogens or general dirt. In an alternative embodiment, the support pillow (502) can also be supplied with a removable cover or liner to protect the pillow and can be removed for cleaning or replacement. The removable cover can be designed to match the dimensions and design of the support pillow (502). The cover of the support pillow (502) is primarily made of a soft fabric, such as fleece or cotton. Other materials may be used depending on environmental considerations, the remediation of pathogens such as viruses or bacteria, or user preferences. Returning to Figure 6, this description also provides a pillow (602) configured to fold upon itself for ease of storage. In this embodiment, the pillow may consist of a single unit comprising a right side (606a) and a left side (606b), as well as a central portion (604) configured to receive the head and neck of a user. The lower portion of each of the right (608a) and left (608b) sides curves, starting at the back of the pillow and extending over the user's shoulders downward toward their chest, as previously described herein. Furthermore, the pillow includes additional features, including a notch (610), which may be located on the lower portion of either the right or left side. It is depicted on the lower portion of the left side in Figure 6.As previously stated, the pillow is foldable, with one side folding towards the opposite side. The notch (610) receives the front inner edge of the folded side. For example, in Figure 6, the right front inner edge (612), once folded, is inserted into the notch (610) on the left side. In some embodiments, the pillow has a notch on each of the right and left sides capable of receiving the front inner edge of the left or right side, respectively. The additional features shown in Figure 6 include notches on the right (614a) and left (614b) sides of the pillow. The notches are configured to receive the user's ears, allowing them to rest comfortably against the sides of the pillow. Figure 7 describes additional details about the potentially foldable pillow. Illustrative dimensions include a maximum height (702) of 22.23 cm (8.75 in.), a height from the top of the pillow to the rearmost edge (704) of 19.69 cm (7.75 in.), an illustrative height of the ear recesses (706) of 8.68 cm (3.42 in.), an illustrative height from the lower rear edge of the pillow to the bottom of the ear recess (710) of 6.78 cm (2.67 in.), an illustrative length from the side edge of the side support to the frontmost edge of the side support (714) of 4.52 cm (1.78 in.), and an illustrative length from the side edge of the side support to the frontmost edge on the underside of the pillow (712) of 5.97 cm (2.35 in.).The illustrative length from the side edge of the pillow to the upper front edge of the side support (716) is 6.42 cm (2.53 in). The illustrative length from the side edge of the pillow to the upper front edge of the headrest (718) is 7.08 cm (2.79 in). The length from the side edge of the pillow to the lower front edge of the headrest (720) is 8.71 cm (3.43 in). While specific dimensions are stated in this description, it is understood that each dimension may increase or decrease by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Figure 8 describes additional details about the potentially foldable pillow. Figure 8 is a top view of the pillow. Illustrative dimensions include a width from the back of the pillow to the upper rear edge of the top of the headrest of 1.70 cm (0.67 in.) and a width from the back of the pillow to the lower rear edge of the bottom of the headrest of 3.53 cm (1.39 in.). The width from the back of the pillow to the rearmost edge of the ear recess (806) is 5.79 cm (2.28 in.). The width from the front edge of the pillow to the frontmost edge of the ear recess (808) is 3.40 cm (1.34 in.). The diameter of the lower curved headrest region (810) is 11.81 cm (4.65 in.). The diameter of the upper curved headrest region (812) is 15.64 cm (6.16 inches).The width of the top edge of the pillow from the back edge to the front edge (814) is 12.70 cm (5 inches). The width of the pillow from the back edge to the front edge (816) is 16.51 cm (6.5 inches). While the specific dimensions are stated in this description, it is appreciated that each of the dimensions may be increased or decreased by 1%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. In some embodiments, the pillow may have larger horizontal and vertical dimensions while still retaining the specified dimensions of the head recess. The side edges of the pillow that support the head can vary in width (from the outside to the inside of the side) from 6.99 cm (2.5 inches) specified to 17.78 cm (7 inches) for uses that require less portability. Figure 9 and Figure 10 provide further details about the folding pillow. As can be seen on the front left side, there is a hard surface (902) attached to the pillow. This hard surface may be made of plastic, metal, wood, or any other rigid material and may be covered with rubber or another material, possibly synthetic, with a rough or sticky texture. In some embodiments, the plastic may be made from biodegradable plastic such as polylactic acid (PLA). This hard panel may be on the front left, right, or both sides of the headrest. The purpose of the rigid surface is to form a segment of a rigid front of the collapsed pillow, as described later in this description. This serves both to provide firmness when using a softer foam and to provide a hard surface that, when folded, aligns its inner aspect with the rigid surface depicted in Figure 11 and described below. This allows for a uniform distribution of forces on the foam, facilitating compression against another hard surface on the back of the pillow. When secured with a Velero® hook-and-loop assembly, tongue-and-groove, or other similar zipper mechanism, or in a box described elsewhere, this creates a thinner, more portable configuration. The hard surface can cover 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%, or 100% of the surface to which it is attached.In some versions, the central portion includes a hole as described herein, but in others it does not. When used with a solid backing to facilitate storage and folding of the pillow, the hole may not be necessary. Figure 11 shows a side view of the pillow. As can be seen, on the right side of the pillow there is a hard surface (1102) attached to it. This hard surface can be placed on either the right or left side of the pillow and can be made of plastic, metal, wood, polylactic acid (PLA), or any other rigid material. It may be covered with rubber or another material, possibly synthetic, with a rough or sticky texture, the purpose of which is to reduce the pillow's slippage against any adjacent surface.The purpose of the rigid surface zzficnn / eznz / B / YiAi is to provide firmness when using a softer foam, as well as to provide a hard surface that, when folded, aligns its inner aspect with the rigid surface depicted in Figure 10 and described above. This allows for an even distribution of forces over the foam to facilitate compression against another hard surface on the back of the pillow. When secured with a magnet, Velero® hook and loop assembly, tongue-and-groove, buckle, or other zipper mechanism, or in a case described elsewhere, this creates a thinner, more portable configuration. The hard surface can cover 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%, or 100% of the surface to which it is attached. Figure 12 shows a rear view of the pillow. As can be seen, a hard surface (1202) is also attached to the back of the pillow. This hard surface can be made of plastic, metal, wood, or any other rigid material such as polylactic acid (PLA), and may be coated with rubber or another material, possibly synthetic, with a rough or sticky texture, the purpose of which is to reduce the pillow's slippage against any adjacent surface.The purpose of the rigid surface is both to provide firmness when using a softer foam, and to provide a hard surface that, when folded, allows for even distribution of forces across the foam to facilitate compression against the two aligned hard surfaces on the front of the folded pillow. When secured with a Velero® hook-and-loop assembly, tongue-in-slot, or other similar zipper mechanism, or in a case described elsewhere, it creates a slimmer, more portable configuration. The hard surface can cover 20% to 80% of the back of the pillow, or in some configurations, 45% to 75%. In some models, the hard surface may cover 20%, 30%, 40%, 50%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99% or 100% of the surface of the back of the pillow to which it is attached.When the hard back surface (1202) covers less than 100% of the pillow's back, it may be positioned predominantly on either the left or right side of the pillow's back. In such cases, it generally aligns with the edge on the same side as the notch (610). Therefore, the uncovered portion of the pillow's back (1204) is on the same side as the side to which the hard surface (1102) is attached. This uncovered portion provides flexibility, allowing the side to fold forward to fold the pillow. zzficnn / eznz / B / YiAi In one embodiment, the support pillow comprises a rigid backing on the back side of the pillow. The rigid backing can be made of cardboard, plastic, metal, or other material capable of providing rigidity and / or support to the user. Furthermore, the rigid backing serves a dual purpose as a component of a storage container, as described later in this description.In some embodiments, the rigid backing is made of plastic, composite material, pressed cardboard, laminate, or other similar hard material with a thickness between 2 and 6 mm, preferably between 3 and 5 mm, resting on or integrated into the back surface of the pillow, with a height equal to 100 percent of the pillow's height, and a length between 30 percent and 100 percent of the pillow's length, centered evenly around the midline of the pillow or positioned only along the right or left side of the back surface of the pillow, and measuring between 30 and 80 percent, and preferably between 60 and 80 percent, of the pillow's length; and a height equal to 100 percent of the pillow's height.In models where the rigid back covers 100 percent of the pillow's back surface, the rigid surface may have a curl, sometimes called a live hinge or true hinge, where the hard material folds partially or completely along a line located 20 to 60 percent of the distance from the midline to the pillow's side edge, either to the left or right of the pillow's midline. In models with a hard surface on one side support, this hinge or curl faces the side support, whose side surface is also covered with the hard surface. In one embodiment, the rigid backing is made of plastic, composite material, pressed cardboard, laminate, or other similar hard material with a thickness of between 2 and 6 mm, preferably between 3 and 5 mm, resting on the front surface of one or both, preferably one, of the side-supporting headrest portion of the pillow or integrated within that facet of the pillow, with a height measuring between 100% and 80%, preferably 100%, of the height of the pillow, and a length measuring 100% of the length of the pillow and centered evenly around the midline of the pillow or positioned only along the right or left aspect of the back surface of the pillow and measuring between 30% and 80%, and preferably between 60% and 80% of the length of the pillow; and a height 100% of the height of the pillow. zzpcnn / cznz / B / YiAi In some embodiments, as shown in Figure 13A, the side of the pillow with the hard surface (1102) is folded forward and to the opposite side of the pillow, forming a folded support pillow. The rim (612) fits into the notch (610), forming a hard or rigid front cover of the pillow. The rear hard surface (1202) forms the rigid back cover of the pillow. The exposed back of the pillow (1204) is now positioned on the side of the folded pillow, leaving the left and right sides of the pillow material exposed. This has the advantage of being flexible or compressible, allowing for further reduction in the size of the folded pillow. In some models, the folded pillow can be compressed to between 5% and 75% of its original folded size, or between 10% and 60% of its original folded size, or between 20% and 50% of its original folded size.In some forms, it was compressed by 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50% of its original folded size. Figure 13B shows a perspective view of the front of the folded support pillow depicting how the side hard cover (1102) meets the front hard cover (902) to form a solid front of the folded support pillow. Figure 13C shows a bottom view of the folded and compressed support pillow. The side (1102) folds adjacent to the hard front surface (902), leaving soft, compressible sides. The compressed pillow can be locked with a front locking mechanism (1302). This front locking mechanism may consist of straps, buckles, loops, Velero® hook and loop fasteners, a zipper system, or similar components. Additionally, the compressed support pillow may also include side locking mechanisms (1304a and 1304b) to facilitate maintaining the compressed pillow in the compressed configuration. These side locking mechanisms may consist of straps, buckles, loops, Velero® hook and loop fasteners, a zipper system, or similar components. Figure 13D shows a front view of the folded or compressed pillow. The rigid supports (1102) and (902) form the front of the folded pillow. In some configurations, the pillow is folded and compressed from side to side instead of front to back as before. This folded configuration has the advantage of easier compression since the same force compresses a smaller surface area, and the compressed pillow can have smaller overall dimensions compared to the front-to-back compression configuration. Figure 13F shows a bottom view of this alternative configuration of the folded and compressed support pillow as it is compressed in the side-to-side dimension. In this configuration, the hard surface on the back of the pillow (1206) occupies about 37.5 percent of the back of the pillow, and the headrest opposite the side on which this hard surface rests has a hard surface (1104) that occupies 80 to 100 percent of its side face.The front portion of the headrest on the same side as the 37.5% of the rear portion with the rigid support has a rigid support (904) that occupies 80 to 100% of its surface area. The rim (616) fits into the notch (611), leaving the front and rear of the pillow soft and compressible. The compressed pillow can be locked with a front locking mechanism (1309). The front locking mechanism may consist of straps, buckles, loops, Velero® hook and loop assemblies, a zipper system, and the like. In addition, as shown in Figure 13G, the compressed support pillow may also include an additional front and rear locking mechanism (1313a and 1313b) to facilitate maintaining the compressed pillow in a compressed configuration. The front and rear locking mechanisms may consist of straps, buckles, loops, Velero® hook and loop assemblies, a zipper system, and the like. In some embodiments, the support pillow comprises a rigid, extendable panel that extends beneath the bottom of the pillow's back. Figure 13E depicts a rear view of the support pillow showing a sliding backplate (1306) in the extended position. When not extended, the sliding backplate (1306) slides into the rigid backplate (1202). In some embodiments, the backplate may be hinged to the support pillow and fold down instead of sliding. The extendable plate may be made of plastic, metal, wood, polylactic acid (PLA), or any other rigid material and may be covered with rubber or another material, possibly synthetic, with a rough or sticky texture intended to reduce slippage of the pillow against any adjacent surface. In some models, the height of the extendable panel is approximately 10 cm to approximately 40 cm. The extendable panel can be 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%, or 100% of the size of the rigid backplate (1202). In some models, the extendable panel is 50%, 60%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%, or 100% of the width of the rigid backplate (1202). Figure 14 shows a front view of the open pillow, revealing the notch (610), the ear cavities (614(a)) and (614(b)), as well as the rigid front plate (902) and the rigid side plate (1102). A curved section between the side and the bottom of the headrest (1402) is also visible. In some models, a similar curved or contoured region is found at the top of the headrest, where the upper portion curves from back to front. In some models, the upper and lower curvatures are parallel to each other. In some models, the front contour of the sides is flat, while in others it is curved, as described herein. Figure 15 represents a perspective view of the support pillow showing the faceplate (902) and ear cavity (614 (a)). Figure 16 represents a rear perspective view of the travel pillow showing the rigid side or lateral support (1102) as well as the rigid rear support (1202). Figure 17A shows a top perspective view of the support pillow showing the rigid side support (1102), the rigid front support (902), the ear cavities (614(a)) and (614(b)), as well as the notch (610). Figure 17B represents a top view of the support pillow showing the rigid front support (902), the ear cavities (614 (a)) and (614 (b)) as well as the notch (610). Figure 18 shows a bottom view of the support pillow, revealing the notch (610) and the trapezius recesses (1802 and 1804). The trapezius recesses are designed to rest against and support the user's trapezius muscles. Figure 19 shows a perspective view of the support pillow from below, revealing the notch (610) and the recesses for the trapezoids (1802 and 1804). The rigid front support (902) is also shown. Figure 20 represents a rear view of the support pillow showing the rear rigid support (1202), as well as the recesses for the trapezoids (1802 and 1804), as well as the notch (610). Figure 21 shows a side view of the support pillow with rigid side support (1102). Figure 22 shows the back of the pillow and illustrates the dimensions of the support pillow in inches. Illustrative length and height dimensions are shown. In some models, the length of the back (2204) of the support pillow may vary. It may be from 25.40 cm (10 in) to 38.10 cm (15 in), or from 27.94 cm (11 in) to 35.56 cm (14 in), or from 28.58 cm (11.25 in) to 31.75 cm (12.5 in). In some models, the length of the back (2204) of the support pillow may be 25.40 cm (10 inches), 26.67 cm (10.5 inches), 27.94 cm (11 inches), 29.21 cm (11.5 inches), 30.48 cm (12 inches), 31.75 cm (12.5 inches), 33.02 cm (13 inches), 34.29 cm (13.5 inches), 35.56 cm (14 inches) or 36.83 cm (14.5 inches).In some models, the height of the backrest (2204) of the support pillow may vary. It may be from 12.70 cm (5 inches) to 30.48 cm (12 inches), or from 16.51 cm (6.5 inches) to 27.94 cm (11 inches), or from 17.78 cm (7 inches) to 25.40 cm (10 inches), or from 19.05 cm (7.5 inches) to 22.86 cm (9 inches). In some models, the height of the back (2204) of the support pillow may be 12.70 cm (5 inches), 13.97 cm (5.5 inches), 15.24 cm (6 inches), 16.51 cm (6.5 inches), 17.78 cm (7 inches), 18.42 cm (7.25 inches), 19.05 cm (7.5 inches), 19.69 cm (7.75 inches), 20.32 cm (8 inches), 20.96 cm (8.25 inches), 21.59 cm (8.5 inches), 22.23 cm (8.75 inches), 22.86 cm (9 inches), 23.50 cm (9.25 inches), 24.13 cm (9.5 inches), 24.77 cm (9.75 inches), 25.40 cm (10 inches), 26.67 cm (10.5 inches) or 27.94 cm (11 inches).It's appreciated that each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. In some models, the pillow has a contoured top that curves from back to front. Figure 23 shows a side view of the pillow (2306(a)). Some illustrative dimensions are given in the descriptions of Figures 7 and 8. The width from the back of the pillow to its lowest point (2314) is 14.27 cm (5.62 in). The length from the lowest point of the pillow to its front point (2316) is 1.98 cm (0.78 in). In some embodiments, the width of the support pillow is greater at the bottom than at the top. That is, in some embodiments, the width at the bottom of the pillow is 2.54 cm (1 in) to 10.16 cm (4 in) greater than the width at the top of the pillow. In some models, the bottom of the pillow may be 3.18 cm (1.25 inches) to 7.62 cm (3 inches) wider than the top. In some models, the width at the bottom of the pillow is 1.27 cm (0.5 inches).91 cm (0.75 inches), 2.54 cm (1 inch), 3.18 cm (1.25 inches), 3.81 cm (1.5 inches), 4.45 cm (1.75 inches), 5.08 cm (2 inches), 5.72 cm (2.25 inches), 6.35 cm (2.5 inches), 6.99 cm (2.75 inches), or 7.62 cm (3 inches) more than the width at the top of the pillow. In some models, the width of the support pillow is 7.62 cm (3 inches) to 25.40 cm (10 inches), or 10.16 cm (4 inches) to 20.32 cm (8 inches), or 12.70 cm (5 inches) to 19.05 cm (7.5 inches). In some versions, the width is 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.70 cm (5 inches), 13.97 cm (5.5 inches), 15.24 cm (6 inches), 16.51 cm (6.5 inches), 17.78 cm (7 inches), 19.05 cm (7.5 inches) or 20.32 cm (8 inches).In some models, the width at the bottom of the support pillow is [missing information]. It can be seen that each of the dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50%. As can be seen in Figure 23, in some embodiments the side of the support pillow comprises two curved regions. The first curved region (2302) extends from the upper front edge of the sides, curving from the top to the bottom of the side or to a point at the maximum width of the bottom of the side (2304). In some embodiments, the pillow comprises a rim (2312) extending from the point of maximum width (2304) to a point in the posterior and inferior direction (2308). The second curved region (2310) extends from the rear lower edge of the pillow to the point in the posterior and inferior direction (2308). Figure 24 shows a front view of the pillow (2402) as well as the side supports (2406(a) and 2406(b)) and provides examples of dimensions in inches. As described above, the back of the support pillow has a height, but the overall height of the pillow may be greater. This is because, in some embodiments, the sides of the support pillow curve downward and away from the back of the pillow, thereby increasing the overall height. In some embodiments, the overall height of the pillow may be 0.64 cm (0.25 in) to 12.70 cm (5 in) greater than the height of the backrest, or 1.27 cm (0.5 in) to 10.16 cm (4 in) greater, or 1.91 cm (0.75 in) to 7.62 cm (3 in) greater, or 2.54 cm (1 in) to 5.08 cm (2 inches) longer. In some models, the total height of the support pillow may be 1.27 cm (0.5 inches), 2.54 cm (1 inch), 3.81 cm (1.5 inches), 5.08 cm (2 inches), 6.35 cm (2.5 inches), 7.62 cm (3 inches), 8.89 cm (3.5 inches), or 10.16 cm (4 inches) longer than the back of the pillow. It is appreciated that each of the dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Figure 25 shows a bottom view of the support pillow, displaying the trapezius muscle recesses (1802 and 1804) as well as a notch (610). Illustrative dimensions are provided for each feature of the travel pillow. While the notch (610) can take a variety of shapes, such as a square, rectangle, scalene, triangle, or circle, Figure 25 exemplifies a scalene shape. Returning to the trapezius muscle recesses, each is configured to accommodate the user's trapezius muscle. The trapezius recesses have a length (L), a height (H), and a depth (D). In some versions, the length of each of the recesses for the trapezoids is from 2.54 cm (1 inch) to 10.16 cm (4 inches), or from 3.81 cm (1.5 inches) to 7.62 cm (3 inches), or from 5.08 cm (2 inches) to 6.35 cm (2.5 inches).In some models, the shoulder cutout length is 2.54 cm (1 inch), 3.81 cm (1.5 inches), 5.08 cm (2 inches), 6.35 cm (2.5 inches), 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches), or 12.70 cm (5 inches). In some models, the upper part of the shoulder cutout is shorter than the lower part due to the curvature of the headrest. The trapezius cutout height ranges from 1.27 cm (0.5 inches) to 10.16 cm (4 inches), or from 2.54 cm (1 inch) to 7.62 cm (3 inches), or from 5.08 cm (2 inches) to 6.35 cm (2.5 inches). In some styles, the shoulder cut length is 1.27 cm (0.5 inches), 2.54 cm (1 inch), 3.81 cm (1.5 inches), 5.08 cm (2 inches), 6.35 cm (2.5 inches), 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches) or 12.70 cm (5 inches).It is appreciated that each of the dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50%. Figure 26 shows a rear perspective view of the prone support pillow, highlighting the notch (610) as well as the side (2202) and back (2204) of the pillow. The illustrative length (2602) of the pillow is 29.34 cm (11.55 in). Each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Figure 27 represents a top view of the support pillow showing the ear cavities (614(a) and 614(b)) as well as the notch (610), side (2202) and back (2204). Figure 28A shows a front view of the support pillow, illustrating the front support (902). In some models, the front panel (902) is 10.16 cm (4 in.) to 25.40 cm (10 in.) high, depending on the height of the pillow side. In some models, the panel is 15.24 cm (6 in.) to 20.32 cm (8 in.) high. In some models, the panel width may not be uniform to accommodate the width of the underlying pillow section, but in some models it is 1.27 cm (0.5 in.) to 7.62 cm (3 in.) wide, or 2.54 cm (1 in.) to 5.08 cm (2 in.) wide. It is appreciated that each 32 zzficnn / eznz / B / YiAi one of the dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50%.It is appreciated that the front support can occupy at least 70%, 75%, 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 100% of the front edge of the pillow. Figure 28B shows a side view of the support pillow, illustrating the rigid support (1102). In some models, the side panel (1102) is 12.70 cm (5 in.) to 25.40 cm (10 in.) high, depending on the height of the pillow side. In some models, the panel is 15.24 cm (6 in.) to 20.32 cm (8 in.) high. In some models, the panel height may not be uniform to accommodate the height of the underlying pillow section. In some models, the side panel width is 7.62 cm (3 in.) to 17.78 cm (7 in.), 8.89 cm (3.5 in.) to 15.24 cm (6 in.), or 10.16 cm (4 in.) to 13.97 cm (5.5 in.). In some models, the panel width may not be uniform to accommodate the width of the underlying pillow section.It is appreciated that each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. It is also appreciated that the lateral support can occupy at least 70%, 75%, 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 100% of the pillow's side. Figure 28C shows a rear view of the support pillow, highlighting the illustrative dimensions of the back support (1202). Illustrative dimensions are provided for each of the travel pillow features. In some models, the back panel (1102) is 8.89 cm (3.5 in) to 25.40 cm (10 in) high, depending on the height of the pillow back. In some models, the panel is 14.61 cm (5.75 in) to 20.32 cm (8 in) high. In some models, the panel height may not be uniform to accommodate the height of the underlying pillow section. In some models, the side panel width ranges from 7.62 cm (3 inches) to 25.40 cm (10 inches), or from 10.16 cm (4 inches) to 20.32 cm (8 inches), or from 12.70 cm (5 inches) to 17.78 cm (7 inches). In some models, the panel width may not be uniform to accommodate the width of the underlying pillow section.It is appreciated that each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. It is also appreciated that the front support can occupy at least 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 100% of the back edge of the pillow. zzficnn / eznz / B / YiAi Figure 29 represents an inside view of the side sides showing the notch (610) and ear cavity (614 (b)). Figure 30 shows an external side view of the side support (3006). Illustrative dimensions for each feature of the travel pillow are provided in the descriptions in Figure 7 and Figure 8. Each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. In some models, the radius of curvature of the lower edge of the side support is approximately 30 to 50 cm, approximately 32 to 47 cm, approximately 35 to 45 cm, approximately 38 to 42 cm, and approximately 39 to 40 cm. In some modalities the radius of curvature of the lower edge of the lateral support is around 30 cm, 31 cm, 32 cm, 33 cm, 34 cm, 35 cm, 36 cm, 37 cm, 38 cm, 39 cm, 40 cm, 41 cm, 42 cm, 43 cm, 44 cm, 45 cm, 46 cm, 47 cm, 48 cm, 49 cm or 50 cm.In some modalities, the radius of curvature of the anterior edge of the lateral support is approximately 30 to 50 cm, approximately 32 to 47 cm, approximately 35 to 45 cm, approximately 38 to 42 cm, and approximately 39 to 41 cm. In some modalities, the radius of curvature of the anterior edge of the lateral support is approximately 30 cm, 31 cm, 32 cm, 33 cm, 34 cm, 35 cm, 36 cm, 37 cm, 38 cm, 39 cm, 40 cm, 41 cm, 42 cm, 43 cm, 44 cm, 45 cm, 46 cm, 47 cm, 48 cm, 49 cm, or 50 cm. Figure 31 shows a front view of the pillow, including the ear cavities (614(a) and 614(b)) and the notch (610). Illustrative dimensions for each feature of the travel pillow are provided in the descriptions of Figure 7 and Figure 8. Each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Returning to Figure 32A, a rear perspective view of a shorter support pillow is provided. In this version, the pillow dimensions may be similar to those described here, except that the overall height of the pillow is shorter. In this version, because the pillow comprises sides curved downward toward the user's chest, the overall height is approximately 12.70 cm (5 in) to 17.78 cm (7 in). In some versions, the overall height is approximately 13.97 cm (5.5 in) to 16.51 cm (6.5 in). In this mode, the height of the back of the support pillow is around 10.16 cm (4 inches) to 15.24 cm (6 inches).In some models, the height of the back of the pillow is approximately 10.16 cm (4 in), 11.43 cm (4.5 in), 12.7 cm (5 in), 13.97 cm (5.5 in), or 15.24 cm (6 in). Figure 32B provides an alternative view of Figure 32A, except that the edges of the pillow are rounded to provide additional comfort and safety for the user. Figure 33A shows a bottom view of the support pillow. As shown in Figures 32A-32B, in some models the support pillow is shorter. That is, the height is less, although other dimensions are similar to those described herein. Figure 33A shows the trapezius recesses (1802 and 1804) as well as the notch (610). Illustrative dimensions are provided for each of the travel pillow's features. While the notch (610) can take a variety of shapes, such as a square, rectangle, scalene, triangle, or circle, a scalene shape is shown in Figure 33A. Regarding the trapezius recesses, each one is configured to receive the user's trapezius muscle. The trapezius recesses have a length (1), a height (h), and a depth (d).In some styles, the length of each of the trapezius cutouts is 2.54 cm (1 inch) to 10.16 cm (4 inches), or 3.81 cm (1.5 inches) to 7.62 cm (3 inches), or 5.08 cm (2 inches) to 6.35 cm (2.5 inches). In some styles, the length of the shoulder cutout is 2.54 cm (1 inch), 3.81 cm (1.5 inches), 5.08 cm (2 inches), 6.35 cm (2.5 inches), 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches), or 12.70 cm (5 inches). In some models, the upper part of the shoulder cutout is shorter than the lower part due to the curvature of the headrest. The height of the trapezius cutouts ranges from 1.27 cm (0.5 in) to 10.16 cm (4 in), or from 2.54 cm (1 in) to 7.62 cm (3 in), or from 5.08 cm (2 in) to 6.35 cm (2.5 in). In some models, the length of the shoulder cutout is 1.27 cm (0.5 in), 2.54 cm (1 in), or 3.81 cm (1.5 in), 5.08 cm (2 in), 6.35 cm (2.5 in), 7.62 cm (3 in), 8.89 cm (3.5 in), 10.16 cm (4 in), 11.43 cm (4.5 in), or 12.70 cm (5 in). It is appreciated that each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Figure 33B provides an alternative view of Figure 33A, except that the edges of the pillow are rounded to provide additional comfort and safety for the user. Figure 34A shows a side view of a shorter pillow (2306(A)) and provides illustrative dimensions in inches. As shown in Figures 32A–32B, in some models the support pillow is shorter. That is, the height is less, although other measurements are similar to those described herein. In some models, the width of the support pillow is greater at the bottom than at the top. That is, in some models, the width at the bottom of the pillow is 2.54 cm (1 inch) to 10.16 cm (4 inches) greater than the width at the top of the pillow. In some models, the width at the bottom of the pillow is approximately 3.18 cm (1.25 inches) to 7.62 cm (3 inches) greater than the width at the top of the pillow. In some models, the width at the bottom of the pillow is 1.27 cm (0.5 inches), 1.91 cm (0.75 inches), 2.54 cm (1 inch), 3.18 cm (1.25 inches), 3.81 cm (1.5 inches), 4.45 cm (1.75 inches), 5.08 cm (2 inches), 5.72 cm (2.25 inches), 6.35 cm (2.5 inches), 6.99 cm (2.75 inches), or 7.62 cm (3 inches) more than the width at the top of the pillow. In some models, the width of the support pillow is 7.62 cm (3 inches) to 25.40 cm (10 inches), or 10.16 cm (4 inches) to 20.32 cm (8 inches), or 12.70 cm (5 inches) to 19.05 cm (7.5 inches). In some models, the width is 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.70 cm (5 inches), 13.97 cm (5.5 inches), 15.24 cm (6 inches), 16.51 cm (6.5 inches), 17.78 cm (7 inches), 19.05 cm (7.5 inches), or 20.32 cm (8 inches). It is appreciated that each of these dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. As can be seen in Figures 34A-34B, in some embodiments the side of the support pillow comprises two curved regions. The first curved region (2302) extends from the upper front edge of the sides, curving from the top to the bottom of the side or to a point at the maximum width of the bottom of the side (2304). In some embodiments, the pillow comprises a rim (2312) extending from the point of maximum width (2304) to a point in the rear and lower direction (2308). The second curved region (2310) extends from the rear lower edge of the pillow to the point in the rear and lower direction (2308). In this embodiment, because the pillow comprises sides curved downward toward the user's chest, the overall height is approximately 12.70 cm (5 in.) to 17.78 cm (7 in.). In some models, the total height is around 13.97 cm (5.5 inches) to 16.51 cm (6.5 inches). In some models, the overall height is approximately 12.7 cm (5 inches), 13.97 cm (5.5 inches), 15.24 cm (6 inches), 16.51 cm (6.5 inches), or 17.78 cm (7 inches). In this model, the height of the back of the support pillow is approximately 10.16 cm (4 inches) to 15.24 cm (6 inches). In some models, the height of the back of the pillow is approximately 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.7 cm (5 inches), 13.97 cm (5.5 inches), or 15.24 cm (6 inches). Figure 34B provides an alternative presentation of the view in Figure 34A, except that the edges of the pillow are rounded to provide additional comfort and safety to the user. Figure 35A and Figure 35B depict an interior view of the side panels showing the ear recess (614(B)) and the trapezius muscle recess (1802). Again, because the pillow comprises sides that curve downward toward the user's chest, the overall height is approximately 12.7 cm (5 in) to 17.78 cm (7 in). In some models, the overall height is approximately 13.97 cm (5.5 in), 13.97 cm (5.5 in), 15.24 cm (6 in), 16.51 cm (6.5 in), or 17.78 cm (7 in). In this configuration, the height of the back of the support pillow is approximately 10.16 cm (4 inches) to 15.24 cm (6 inches). In some configurations, the height of the back of the pillow is approximately 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.7 cm (5 inches), 13.97 cm (5.5 inches), or 15.24 cm (6 inches). It is appreciated that each of the dimensions can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. In particular, in the pillow configuration shown in Figure 35A, the ear notches are on the top edge of the pillow. The height of the ear notch is approximately 5.08 cm (2 inches), 5.715 cm (2.25 inches), 6.0452 cm (2.38 inches), 6.35 cm (2.5 inches), 6.985 cm (2.75 inches), or 7.62 cm (3 inches). Figure 35B provides an alternative presentation of the view in Figure 35A, except that the edges of the pillow are rounded to provide additional comfort and safety to the user. Figures 36A-36B show a top view of the support pillow, including the ear recesses (614(a) and 614(b)), as well as the notch (610), side (2202), and back (2204). Illustrative dimensions for each feature of the travel pillow have been provided previously. Each dimension can be increased or decreased by 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, or 50%. Figure 36B provides an alternative view of Figure 36A, except that the edges of the pillow are rounded for added comfort and safety. zzficnn / eznz / B / YiAi In some pillow designs, including the high and low pillow height variations described above, the pillow includes an extension behind each side support that is triangular in shape (770a and 770b) when viewed from above or below and extends from 1.27 cm (1 / 2 inch) to 2.54 cm (1 inch) posteriorly at its thickest point. See Figure 39. The purpose of the extensions is to angle the anterior portion of the side supports inward so that they better conform to the user's head and neck when the user's head presses the headrest portion of the pillow against the seat back, bed, or other surface. The triangular shape of these extensions ensures maximum contact of the pillow's surface area with the surface against which it is pressed, thereby increasing friction and thus stability.The width of the triangular extensions may comprise between 10% and 50%, preferably 30%, of the width of the pillow; and their height may comprise between 10% and 100%, preferably 100%, of the height of the pillow. In some embodiments, the triangular extension is curved to match the beveled curvature of the pillow edges as described and illustrated elsewhere, and in some embodiments it is rectangular when viewed from above or below instead of triangular. In these embodiments, the rigid support on the back of the pillow may be bent, curved, or otherwise contoured to match the extension instead of being flat. In some embodiments, the pillow has between one and five simple circular, square, or rectangular extensions (788a and 788b) that measure between 2.54 cm (1 inch) and 12.7 cm (5 inches), preferably two inches, in width (and if rectangular, between 2.54 cm (1 inch) and 12.7 cm (5 inches) in height), preferably within each side of one-tenth to one-third, preferably one-quarter, of the back of the pillow. See Figure 40. These button-like extensions are intended to help tilt the front portion of the side supports inward to better accommodate the user's head and neck when the user's head presses the headrest portion of the pillow against the back of the seat, bed, or other surface. In these embodiments, the rigid support on the back of the pillow may be bent, curved, or otherwise contoured to match the extension rather than being flat. In some embodiments, the pillow further comprises an accessory for securing the compressed front panels. See Figure 13C (1302). The accessory may consist of buckles, loops, buttons, Velero® hook and loop assemblies, and / or hooks, and the like. In some embodiments, the collapsed pillow comprises a compression system to facilitate compression of the folded pillow. This compression system may consist of straps, buckles, loops, Velero® hook and loop assemblies, ratchet systems, and the like. See (1304(a) and 1304(b)). In some models, a case or exoskeleton is used to enclose the product and / or to facilitate locking it in a compressed position. This can be made of flexible or rigid plastic, metal, wood, or any material that provides protection for the pillow. In some models, this component will also be made of polylactic acid. All plastic parts can be manufactured using standard injection molding. In some configurations, the pillow is also designed to carry or integrate a variety of features. In one configuration, the pillow includes a vertically oriented slit to accommodate the speaker cable of third-party wired headphones or BLUETOOTH® wireless speakers. In some configurations, the slit can also function as a receptive recess for the opposite arm of the pillow to be inserted into when it is folded for transport. In one configuration, the pillow is designed with built-in speakers embedded in the foam, positioned at or near the ear holes. This configuration may include wiring for connecting the speakers and for audio input. Some configurations feature Bluetooth® wireless technology for wireless connectivity to audio inputs. Other configurations also include a battery, charger, and / or power outlets as needed. In some models, the support pillow is configured with rechargeable batteries for portable electronic devices, such as mobile phones, tablets, computers, and similar devices, and / or pockets for inserting rechargeable batteries. Additionally, the support pillow can be configured with a variety of ports, including USB and / or USB-C ports, micro-USB ports, and similar options. In some of these models, the charging mechanism is wireless, with or without magnetic connection capability. In some models, the support pillow can be configured with an electric heater and / or massager for added user comfort. One model features a built-in vibration or other head and / or neck massage mechanism, as well as heating and / or cooling. Additionally, In some versions, the pillow can also be configured to have an integrated storage compartment or compartments to store items such as, among others, sunglasses, mobile phones, pens and the like. In one embodiment, the pillow is used as a component of a multi-component carrier (1700). Figures 37A to 37D are a side view of the multi-component carrier. In this embodiment, the carrier comprises two compartments (1702, 1704) that share a central barrier or wall (1710). The multi-component carrier has one compartment configured to hold the pillow (1704) as described herein, and an adjacent compartment for storing additional items (1702). A hinge system (1706) allows one side to be opened at a time. A locking mechanism (1708) allows one side to be opened at a time or both sides to be opened simultaneously. In some embodiments, this also includes a lock. In some embodiments, each chamber is the same size. In other embodiments, the chambers are asymmetrical.One side is configured to hold the pillow described herein, and more specifically, to hold the compressed pillow described herein. The other compartment may include a foam-lined interior to protect the contents of this chamber. When a hinge (1706) is used as shown in Figure 37A and Figure 37B, the additional item compartment (1702) may also include an internal base (1712) to hold the contents in place when the chamber is open. Conveniently, when one compartment is upside down, the top housing can be opened. Then, to open the other compartment, the carrier is flipped over. When a two-hinged system is used as shown in Figure 37C and Figure 37D, only the lids (1714, 1716) of each chamber open, leaving the compartment walls attached or integrated with the base (1710).This ensures that the contents of the compartment do not spill when the lid is opened. The contents may include, but are not limited to, mobile phones, pens, keys, wallets, business cards, cash, glasses, sunglasses, and other small personal items. Alternatively, these items can be temporarily stored in a more limited way in small external pockets on the outer sides of the pillow. These pockets are zippered and can be assembled using Velero® hook and loop fasteners, or, using current technology, in another unsealed but low-profile configuration for temporary storage. In some models, the pillow's side headrests are angled inward at angles ranging from 5 to 30 degrees; in some models, from 5 to 20 degrees, from 10 to 20 degrees; and in some models, from 12 to 17 degrees. In some models, the headrests are angled inward at angles of 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 40 degrees. In some of these models, the firm back panel occupies 60 to 70 percent of the rear surface toward the side headrest without a side panel, allowing the contralateral headrest to articulate laterally to accommodate the user's head and neck as it is placed in position, after which it returns to its inward-angled position. See Figure 41.The purpose of the inward angle is to provide more secure support for the head and neck, doubling the effect of the posterior wedge extensions described elsewhere without requiring the seat back or other surface on which active pressure is applied to the pillow back to rest. It is noted that in these configurations, due to compression by the inward angle of the lateral support, the dimensions of the head support are reduced, with the average radius of the head support being approximately 6 cm at its upper portion and narrowing to approximately 4.75 cm at its lower portion. In some models, the pillow contains air chambers (4200) and an external nozzle (4202) for inflating and deflating these air chambers. See Figure 42. This nozzle may have a one-way valve that can be manually released in some models. The nozzle can be positioned anywhere on the pillow as long as it does not interfere with the pillow's function and / or comfort. In some models, the air chambers occupy only the side portion of the pillow's headrest, connected through the back of the headrest so they can be inflated simultaneously; in others, there is also an air chamber that extends into the back of the headrest.The proportion of the pillow occupied by these air chambers can range from ten percent to one hundred percent (the latter being a fully inflatable pillow with a thin layer of foam or other soft covering); preferably thirty percent. The purpose of the air chambers is twofold: one, to provide firmness when fully inflated, which may vary when not fully inflated; this firmness is balanced by the foam on the outside of the air chambers, the density and shape specifications of which are specified elsewhere (less the internal portion reserved in the present embodiments for the air chambers); and two, to provide portability when fully deflated.In some of these embodiments, the placement of the firm panels and the folding configuration are as specified elsewhere, and in some embodiments the panel on the back surface occupies its central portion, ranging from 30% to 100%, preferably 70%. In these configurations, the side arms fold toward the center of the pillow when deflated, symmetrically; they overlap as necessary when the pillow is folded into this flat configuration. In some of these embodiments, the side panels are placed on both sides with a percentage of coverage that varies as described elsewhere for panels placed on only one side. In some of these embodiments the front panels are absent, and in some they are placed on the front surface of each side support, symmetrically.In some versions of the unreliable pillow, there are no firm panels on any surface. In some of these versions without firm panels, there are rubber, polyurethane, or other sticky surfaces on the back of the pillow, covering between 30 and 100 percent, preferably 95 percent, the purpose of which is to create frictional adhesion between the back of the pillow, the pillow, and the seat back or other flat surface against which it rests, as described elsewhere with reference to the firm panels. Air chambers may be present in all the versions described elsewhere, including the one described above with angled side headrests. Alternative models are envisaged where the pillow is sized to accommodate the head, neck, and shoulders of children from toddlers through adolescents. These models would encompass the range of other versions mentioned above and below, with the exception that all their measurements are smaller, but in exact or approximate proportion to those of the models mentioned above and below. The size ratio of these alternative models to those described elsewhere would be 50, 55, 60, 65, 70, 75, 80, 85, 90, and 95 percent, preferably between 70 and 85 percent. In the shortest of these versions, the overall height is approximately 7.62 cm (3 inches) to 15.24 cm (6 inches). In some versions, the overall height is approximately 7.62 cm (3 inches) to 13.97 cm (5.5 inches). In some versions, the overall height is approximately 7.62 cm (3 inches), 8.89 cm (3.5 inches), 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.7 cm (5 inches), 13.97 cm (5.5 inches), or 15.24 cm (6 inches). In this version, the height of the back of the support pillow is approximately 7.62 cm (3 inches) to 12.7 cm (5 inches). In some models, the height of the back of the pillow is around 10.16 cm (4 inches), 11.43 cm (4.5 inches), 12.7 cm (5 inches), 13.97 cm (5.5 inches) or 15.24 cm (6 inches).The size proportion of these alternative modalities to the modalities described elsewhere may be 50, 55, 60, 65, 70, 75, 80, 85, 90 and 95 percent, preferably between 70 and 85 percent. In the highest of these modalities, the pillow has a height that ranges between around zzficnn / eznz / B / YiAi 17.78 cm (7 inches) and about 25.4 cm (10 inches). In these smaller sizes, the head cutout may vary in proportion to the overall dimensions to reflect the difference in head, neck, and shoulder proportions between toddlers and children and those of adults. The radius (exact if circular, average if elliptical) at the top of the upper portion may be between 4 and 7 cm, and between 2 and 3 cm, preferably between 2.5 and 5 cm.5 cm at the bottom of the upper portion, and decreases evenly between those two radii in a shape that fits the head and neck of an average human posterior toddler (see attached diagrams), or the head and neck of an average posterior toddler, and the head and neck contours match the sizes interposed between the average toddler and the average child as well as those head sizes between 1 and 20 percent larger than the head and neck of an average toddler (which has a circumference of 49.5 cm (20 inches) and between 1 and 20 percent smaller than the head and neck of an average toddler. In some models (see Figures 43A-43D), the pillow has an attachable elastic band, or a pair of bands, such as rubber bands, for compression to a smaller size. The bands are wrapped together and connected with buttons, Velcro® hook-and-loop assemblies, hooks, buckles, and / or magnets (2901). In some models, the bands are attached to the pillow itself with buttons, Velcro® hook-and-loop assemblies, hooks, buckles, and / or magnets (2902). (Figure 43A) folded with the straps open, and (Figure 43B) folded and compressed with the straps closed. Two of the benefits of the compressed size are easier portability and the use of a bag, hard case, or soft case, which allows for the pillow's security and protection, easier portability, and an improved aesthetic. In some embodiments (see Figure 44), the pillow has a fastening device (3302) for attaching it to the backrest of an aircraft seat (3301). This device may be made of metal, buttons, Velero® hook-and-loop assemblies, hooks, buckles, and / or magnets and may be height-adjustable to accommodate various head and neck positions of the passenger. In some embodiments, the pillow is part of an integrated aircraft seat back design, such as, among other things, a design that airlines and aircraft manufacturers choose to incorporate for passenger comfort. In some embodiments, the headrests fold sideways to allow use of the seat back without the headrest supports. zzficnn / eznz / B / YiAi In some models (see Figures 43A-43D), the pillow has an attachable elastic band, or a pair of elastic bands, for compression to a smaller size. The bands are wrapped to connect to each other (2901) with buttons, Velcro® hook-and-loop assemblies, hooks, buckles, and / or magnets. In some models, the bands are attached to the pillow itself (2902) with buttons, Velcro® hook-and-loop assemblies, hooks, buckles, and / or magnets. (Figure 43A) folded with the straps open and (Figure 43B) folded and compressed with the straps closed. Two of the benefits of the compressed size are easier portability and the use of a bag, hard case, or soft case, which allows for the pillow's security and protection, easier portability, and an improved aesthetic. In some embodiments (see Figure 44), the pillow has a fastening device (3302) for attaching it to the backrest of an aircraft seat (3301). This device may be made of metal, buttons, Velero® hook-and-loop assemblies, hooks, buckles, and / or magnets and may be height-adjustable to accommodate various head and neck positions of the passenger. In some embodiments, the pillow is part of an integrated aircraft seat back design, such as, among other things, a design that airlines and aircraft manufacturers choose to incorporate for passenger comfort. In some embodiments, the headrests fold sideways to allow use of the seat back without the headrest supports. In some models, the anteroinferior portion of the lateral supports that fit the clavicle is truncated (see Figure 45). That is, in some models the pillow includes lateral supports that fit the clavicle, and in others the lateral supports do not fit the clavicle. In the latter model, the length of the lower part of the lateral support is truncated relative to the length of the lateral support that attaches to the clavicle. The lateral support lacking clavicle-fitting regions has a reduced length of 0.25 cm (0.1 in), 0.51 cm (0.2 in), 0.76 cm (0.3 in), 1.02 cm (0.4 in), 1.27 cm (0.5 in), 1.52 cm (0.6 in), 1.78 cm (0.7 in), 2.03 cm (0.8 in), 2.29 cm (0.9 in), or 2.54 cm (1 in). In some models, the length reduction is from 0.25 cm (0.1 in) to 2.54 cm (1 in), from 0.51 cm (0.2 in) to 1.78 cm (0.7 in), or from 1.27 cm (0.5 in) to 1.27 cm (0.5 in). Measurement changes are approximate within 2 cm. In this version, the slot (610) of the contralateral headrest arm to the folding arm is eliminated or modified to receive the folding arm with the truncated front-lower configuration, and the firm panel on the side(s) of the side support(s) is modified to accommodate the truncated side support. This configuration applies to the high and short versions of the pillow described above, and may also have beveled or curved edges as described above. In some variations of the truncated version described in the preceding paragraph, all anterior lateral supports are truncated (see Figure 46). In this variation, the lateral support length is reduced relative to the clavicle-fitting version by 1.27 cm (0.5 in) to 5.08 cm (2 in), or from 2.03 cm (0.8 in) to 3.81 cm (1.5 in), or from 2.54 cm (1 in) to 3.30 cm (1.3 in). The length may be from 10.16 cm (4 in) to 15.24 cm (6 in) or from 10.41 cm (4.1 in) to 12.70 cm (5 in). Measurement changes are approximate and within 2 cm. In this version, the "slot" of the headrest arm opposite the folding arm is removed or modified to receive the folding arm with the truncated lower front configuration, and the firm panel on the side(s) of the side support(s) is modified to accommodate the truncated side support.This configuration applies to both the tall and short versions of the pillow described above, and it can also have beveled or curved edges as described above. In some variations of the truncated version described in the preceding paragraph, the entire anterior side supports are truncated and curved with a convex surface on the front (see Figure 47). In this variation, the width of the top of the side support is approximately 12.93 cm (5.09 in.), and the width from the back of the pillow to the front edge of the pillow is approximately 13.39 cm (5.27 in.). Measurement variations are approximate and within 2 cm. In this version, the groove in the headrest arm opposite the folding arm is eliminated or modified to accommodate the folding arm with the truncated lower front configuration, and the firm panel on the side(s) of the side support(s) is modified to fit the truncated side support.This configuration applies to both the tall and short versions of the pillow described above, and it can also have beveled or curved edges as described above. Once made, the pillow, referred to herein as a support pillow, finds a variety of uses. In one instance, the pillow is used as a support pillow for air travel, ground transportation, or other modes of travel for added comfort or for necessary immobilization of the head or neck. In alternative instances, the pillow is used for sleeping, whether traveling or not. In a similar or entirely separate instance, the pillow can be used while resting in a chair, sofa, or other seating arrangement. In one particular instance, the pillow is used with patients following injuries, medical procedures, or surgery. Frequently, after such surgeries or events, patients are required to sleep on their backs, as the pillow facilitates the ability to do so comfortably. This would apply particularly to cosmetic and non-cosmetic head or neck surgeries.Accordingly, the description herein provides a method for immobilizing a post-surgical patient by having the patient recline on the pillow as described herein, ensuring that the head is comfortably immobilized. This would also apply to resting and sleeping in a reclined or supine position on a patient's back following an injury or medical procedure; such head and neck positioning promotes healing and ensures stability and comfort. Although the various embodiments of the present invention have been described above, it should be understood that they have been presented only by way of example and not as a limitation. Similarly, the figure may represent an example of an architectural or other configuration for the invention, which is done to aid in understanding the features and functionality that can be included in the invention. The invention is not limited to the example architectures or configurations illustrated, but the desired features can be implemented using a variety of alternative architectures and configurations.

Claims

1. A pillow for supporting the neck and head of a user in a supine, inclined, or upright position, the pillow assembly comprising: a. a headrest portion; b. a first and second headrest for supporting the user's head, wherein the headrest portion is positioned between the headrests and wherein the headrest portion comprises a curved interior for supporting the back of the head and neck, having a larger radius in its upper portion that tapers to a smaller radius in its lower portion; c. an arc-shaped lower portion, wherein the lower portion rests on the back of the user's neck, further wherein the upper part of the arc-shaped lower portion is positioned at the base of the headrest and the lower part of the arc-shaped lower portion is positioned at the base of the side supports; d.first and second ear recesses on the first and second lateral sides of the headrest portion, wherein said ear recesses are configured to receive the user's ears; and e. first and second trapezius recesses on the lower part of the first and second sides of the lower arc-shaped portion, said trapezius recesses configured to receive the user's trapezius muscle.

2. The pillow according to claim 1, further comprising a curve on the lower surface of each lateral support resting on the user's shoulders, which slopes downwards from back to front as it extends from the back of the shoulder area downwards to cover the user's clavicle area.

3. The pillow according to claim 1, wherein the lower surface of the side supports extends only to a point 2.54 cm (1 inch) behind the most anterior extension of the upper part of the side support, so that it does not overlap the user's clavicle area.

4. The pillow according to claims 1, 2 or 3, further comprising an inward angle between the anteroposterior axis of each lateral support and the perpendicular line from the back of the pillow of between five (5) and 20 (twenty) degrees.

5. The pillow according to claims 1, 2 or 3, wherein each lateral support is inclined forward perpendicularly (90 degrees) to the back of the pillow.

6. The pillow according to claims 1, 2, 3, 4 or 5, wherein the pillow is configured to be foldable into a folded configuration.

7. The pillow according to claim 6, further comprising a rigid support on the back surface of the pillow.

8. The pillow according to claim 7, wherein the rigid back support of the pillow covers about 70% of the back of the pillow.

9. The pillow according to claims 7 or 8, wherein said rigid support is flush with the lateral surface of the first lateral support.

10. The pillow according to claims 7, 8 or 9 further comprising a rigid support on the front surface of the first lateral support.

11. The pillow according to claim 10, further comprising a rigid support on the lateral surface of the second lateral support.

12. The pillow according to claims 7, 8 or 9 further comprising a rigid support on the lateral surface of the second lateral support.

13. The pillow according to any of claims 1-12, further comprising a notch inside said first side support, configured to receive a front inner edge of said second side support when said side support is folded inwards for transport.

14. The pillow according to any of claims 1-13, wherein the width of the pillow is about 27 cm.

15. The pillow according to any of claims 1-14, wherein the height of the pillow, measured 2 cm behind the most anterior extension of the side supports, is about 15 cm; and wherein the rear height of the pillow, measured at the most rear extension of the side supports, is about 13 cm.

16. The pillow according to any of claims 1-14, wherein the height of the pillow, measured 2 cm behind the most anterior extension of the side supports, is about 22 cm; and wherein the rear height of the pillow, measured at the most rear extension of the side supports, is about 17 cm.

17. The pillow according to any of claims 1-14, wherein the anteroposterior depth of the pillow, measured 2.5 cm from the bottom of the pillow and 3.5 cm from the most lateral extension of the side supports, is about 18 cm; and wherein the anteroposterior depth of the top of the pillow, measured 3.5 cm from the most lateral extension of the side supports, is 15.5 cm.

18. The pillow according to any of claims 1-14, wherein the front height of the side supports is about 22 cm and the rear height is about 17 cm.

19. The pillow according to any of claims 1-18, further comprising at least one strap configured to compress the pillow when folded.

20. The pillow according to claim 19, comprising at least two straps configured to compress the pillow when folded.

21. The pillow according to any of claims 1-20, wherein the ear recesses are quarter-ellipsoid shaped to receive the lower part of the user's ear, and wherein said quarter-ellipsoid has a maximum top-bottom dimension of 6 cm, a maximum front-to-back dimension of 6 cm, and a maximum left-to-right dimension (depth) of 2.2 cm. zzficnn / eznz / B / YiAi 22. The pillow according to any of claims 1-21, comprising a single piece of polyester, polyurethane, polyethermethane, latex, viscoelastic or memory foam.

23. The pillow according to claim 22, wherein said pillow is configured so that it is comfortably soft but firm enough to provide support against head movement in a reclining, sitting, or upright position.

24. The pillow according to claim 22, made of high-pressure compression-molded polyurethane to approximately a density of 4.0046 kg / m3 (0.25 lb / ft³) or 80.0925 kg / m3 (5 lb / ft³), 25. The pillow according to claim 24, wherein said density is from 8.00925 kg / m3 (0.5 lb / ft³) to 16.0185 kg / m3 (1.5 lb / ft³).

26. The pillow according to claim 25, wherein said density is from 4.0046 kg / m3 (0.25 lb / ft³) to 16.0185 kg / m3 (1 lb / ft³).

27. The pillow according to claims 1-22, wherein said pillow is made of material of vegetable origin.

28. The pillow according to any of claims 1-27, comprising a smooth polyurethane or plastic coating from 0.1 to about 2.5 mm thick.

29. The pillow according to claim 28, wherein said polyurethane or smooth plastic is capable of allowing the surface to be cleaned or sterilized.

30. The pillow according to claim 29, wherein said polyurethane or smooth plastic is capable of enhancing or improving comfort.

31. The pillow according to claim 30, further comprising a removable cover or sleeve adaptable to protect the pillow, wherein said cover or sleeve can be removed for cleaning or replacement.

32. The pillow according to any of claims 1-31, further comprising at least one fastening element selected from the group consisting of a carabiner, hook and loop.

33. The pillow according to any of claims 1-31, further comprising integrated air chambers configured to expand and deflate to adjust the firmness or comfort of said pillow.

34. The pillow according to any of claims 1-31, further comprising a strap configured to support the pillow in place relative to the user's head.

35. The pillow according to claim 34, wherein said strap is capable of being adjusted from side to side to secure the headrest against the user's head.

36. The pillow according to any of claims 1-35, configured to enhance the recovery or therapy of a patient in need, said pillow configured as an attachment device for use with a continuous positive airway pressure (CPAP) machine, supplemental oxygen, or the like.

37. The pillow according to any of claims 1-36, configured to sleep better for patients with diagnosed conditions or psychological / physiological / comfort preference to sleep on their back or medical or post-surgical conditions requiring the patient to sleep exclusively or predominantly in either of the two strictly supine or inclined positions (back elevated in any amount up to and including 90 degrees in an upright position).

38. A method for transporting a portable pillow comprising folding the second side support of the folding pillow of any of claims 1-37, towards the first side support and housing the inner edge of the second side support in the notch of the first side support.

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