Pillow inner attached to human body and beneficial to deep sleep and pillow

Abstract

The pillow inner comprises a supporting layer and a comfortable layer which are stacked from bottom to top, the comfortable layer is a zero-pressure memory foam comfortable layer, the thickness of the comfortable layer is larger than or equal to 3 cm, and the thickness of the comfortable layer is larger than or equal to 3 cm. The top surface of the pillow inner comprises a first side sleeping part, a second side sleeping part, a concave part, a first back sleeping part, a second back sleeping part and a head nest part, the first side sleeping part and the second side sleeping part are located on the rear side and the front side of the top surface of the pillow inner respectively, and the first back sleeping part and the second back sleeping part are located on the rear side and the front side of the top surface of the pillow inner respectively; the height of the first side sleeping part is lower than that of the second side sleeping part, the height of the first back sleeping part is lower than that of the second back sleeping part, the height of the head fossa part is lower than that of the concave part, and the thicknesses of the comfortable layer and the supporting layer in all areas are within a specific range, so that the hardness of the comfortable layer tends to zero in the use process, capillary vessels on the skin surface and neck artery vessels are not pressed, and the comfort degree is improved. The blood oxygen content of the head is increased, the deep sleep duration is prolonged, and the sleep quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of textiles, and in particular relates to a pillow core and a pillow which fits the human body and is conducive to deep sleep. Background Art

[0002] A pillow is a piece of bedding used to elevate the head, typically used during sleep for comfort and support. Pillows provide comfort and support, helping people maintain a correct posture during sleep, thereby improving sleep quality. Pillows are essential bedding in our daily lives, spending one-third of our lives sleeping with pillows. As a daily sleep item, especially for patients with cervical spondylosis, pillows have a crucial impact on their lives, work, and studies. During sleep, incorrect pillow spacing and load-bearing capacity can hinder a comfortable cervical spine posture, irritating and causing neck pain.

[0003] From a medical perspective, the human cervical spine has a natural curvature that helps support the weight of the head, reduces the burden on the neck muscles, and ensures comfort for the head and body. Therefore, a pillow should be able to adapt to this physiological curvature and provide adequate support for the neck.

[0004] In the related art, the existing pillow core will compress the capillaries on the skin surface and the neck arteries during sleep, resulting in poor sleep quality and affecting sleep quality. Utility Model Content

[0005] In view of this, the purpose of the present invention is to provide a pillow core and a pillow that fits the human body and facilitates deep sleep, so as to solve the technical problems that the above-mentioned existing pillow cores will compress the capillaries on the skin surface and the neck arteries during sleep, resulting in poor sleep quality and affecting sleep quality.

[0006] To achieve the above purpose, the technical solution of the utility model is as follows:

[0007] In the first aspect, the utility model provides a pillow core, the pillow core includes a support layer and a comfort layer stacked from bottom to top, the comfort layer is a zero-pressure memory foam comfort layer, the thickness of the comfort layer is greater than or equal to 3 cm, the top surface of the pillow core includes a first side sleeping portion and a second side sleeping portion located on the left and right sides, a concave portion located in the middle of the left and right sides, a first back sleeping portion and a second back sleeping portion located in the middle of the front and back sides, and a head nest portion located in the middle of the pillow core, the first side sleeping portion and the second side sleeping portion are respectively located on the back and front sides of the top surface of the pillow core, and the first back sleeping portion and the second back sleeping portion are respectively located on the back and front sides of the top surface of the pillow core. Located on the back and front sides of the top surface of the pillow core, the height of the first side sleeping part is lower than that of the second side sleeping part, the height of the first back sleeping part is lower than that of the second back sleeping part, and the height of the head nest part is lower than that of the recessed part. The thickness ratio of the comfort layer to the support layer at the first side sleeping part is 3-4:5-7, the thickness ratio of the comfort layer to the support layer at the second side sleeping part is 3-5:6-9, the thickness ratio of the comfort layer to the support layer at the first back sleeping part is 3-4:5-6, and the thickness ratio of the comfort layer to the support layer at the second back sleeping part is 3-5:5-8.

[0008] It should be noted that, in this application, zero-pressure memory foam refers to memory foam that is tested using a sponge hardness tester and the test results show a pressure value of 0-5F.

[0009] The principle of the pillow core of the present invention is: by arranging the pillow core to include a support layer and a comfort layer stacked from bottom to top, the comfort layer is a zero-pressure memory foam comfort layer, the thickness of the comfort layer is greater than or equal to 3 cm, the top surface of the pillow core includes a first side sleeping part and a second side sleeping part located on the sides of the left and right sides, a recessed part located in the middle of the left and right sides, a first back sleeping part and a second back sleeping part located in the middle of the front and back sides, and a head nest part located in the middle of the pillow core, the first side sleeping part and the second side sleeping part are respectively located on the back and front sides of the top surface of the pillow core, the first back sleeping part and the second back sleeping part are respectively located on the back and front sides of the top surface of the pillow core, the height of the first side sleeping part is lower than that of the second side sleeping part, the height of the first back sleeping part is lower than that of the second back sleeping part, the height of the head nest part is lower than that of the recessed part, and the comfort layer and the support layer are aligned at the first side sleeping part The thickness ratio of the layers is 3-4:5-7, the thickness ratio of the comfort layer to the support layer at the second side sleeping part is 3-5:6-9, the thickness ratio of the comfort layer to the support layer at the first supine sleeping part is 3-4:5-6, and the thickness ratio of the comfort layer to the support layer at the second supine sleeping part is 3-5:5-8, which can ensure that the hardness of the comfort layer is close to zero during use of the pillow core, and will not compress the capillaries on the skin surface and the neck arteries during sleep, thereby increasing the blood oxygen content in the human head, prolonging the duration of deep sleep, and improving sleep quality; at the same time, increasing the blood oxygen content in the head is helpful to improve the health level of the human body; in addition, the support layer can provide reliable support, reduce the pressure on the head and neck, provide firm support, maintain the natural physiological curvature of the cervical vertebra and spine for sleeping, reduce the sense of oppression in the neck artery, and effectively maintain smooth blood flow in the carotid artery.

[0010] Optionally, the comfort layer has a thickness of 3-4 cm.

[0011] Optionally, the first back sleeping part is lower in height than the first side sleeping part.

[0012] Specifically, the present invention can avoid pressure on the face and ears during side sleeping by setting the height of the first back sleeping part to be lower than the first side sleeping part, effectively improving the comfort of side sleeping and further enhancing the user experience.

[0013] Optionally, a height difference between the first back sleeping part and the first side sleeping part is 1-2 cm.

[0014] Specifically, the present invention can avoid pressure on the face and ears during side sleeping by setting the height difference between the first back sleeping part and the first side sleeping part to 1-2 cm, effectively improving the comfort of side sleeping and thus improving user experience.

[0015] Optionally, the comfort layer adopts a first core filled with a first memory foam, and the support layer adopts a second core filled with a second memory foam. The first memory foam has a smaller compression rebound time than the second memory foam, and the density of the first memory foam is smaller than that of the second memory foam.

[0016] Optionally, the second back sleeping part is lower in height than the second side sleeping part.

[0017] Specifically, the present invention can avoid pressure on the face and ears during side sleeping by setting the height of the second back sleeping part to be lower than the second side sleeping part, thereby improving the comfort of side sleeping and further enhancing the user experience.

[0018] Optionally, a height difference between the second back sleeping part and the second side sleeping part is 1-3 cm.

[0019] Specifically, the present invention can avoid pressure on the face and ears during side sleeping by setting the height difference between the second back sleeping part and the second side sleeping part to 1-3 cm, effectively improving the comfort of side sleeping and thus improving user experience.

[0020] Optionally, the height difference between the head socket portion and the recessed portion is 1-2 cm.

[0021] Specifically, the present invention can avoid pressure on the face and ears during sleep by setting the height difference between the head socket and the recessed portion to 1-2 cm, thereby improving the user experience.

[0022] Optionally, a plurality of laterally extending guide grooves are provided on the front and rear sides of the top surface of the pillow core.

[0023] Specifically, the present invention can reduce the contact area between the neck and the pillow core by adding a number of laterally extending guide grooves on the front and back sides of the top surface of the pillow core, increase the air circulation on the top of the pillow core, reduce the stuffy feeling of the neck, and thus improve the comfort of the pillow core during use, thereby improving the user experience.

[0024] Optionally, all the guide grooves are bent outward near the head socket portion.

[0025] Specifically, the present invention provides sufficient space for the head socket by setting all the guide grooves to bend outward near the head socket, thereby improving the fit between the head socket and the brain, improving the comfort of the pillow core during use, and thus improving the user experience.

[0026] In a second aspect, the present invention further provides a pillow comprising the pillow core as described above and a pillowcase for wrapping the pillow core.

[0027] Optionally, the pillowcase is made of far-infrared fabric.

[0028] Specifically, the present invention can give the pillow antibacterial effects (against Staphylococcus aureus, Escherichia coli, Candida albicans, and Klebsiella pneumoniae) by setting the pillowcase to be made of far-infrared fabric. At the same time, far-infrared rays have a certain penetrating power and can penetrate deep into the human body, causing resonance in the deep subcutaneous tissue of the neck, thereby promoting blood circulation in the bilateral internal arteries and vertebral arteries of the neck, and significantly improving the user's sleep quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] Figure 1 is a cross-sectional view of the pillow core of Example 1;

[0031] Figure 2 is a top view of the pillow core of Example 1;

[0032] Figure 3 This is a cross-sectional view of the pillow of Example 2.

[0033] Reference numerals

[0034] 1- pillow core, 11- support layer, 12- comfort layer, 13- first side sleeping part, 14- second side sleeping part, 15- recessed part, 16- first back sleeping part, 17- second back sleeping part, 18- head nest, 19- guide groove;

[0035] 2-Pillowcase. DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0037] In the description of this utility model, it should be understood that the use of terms such as "upper," "lower," "inner," "outer," "top," and "bottom" to define components is solely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and should not be construed as limiting the scope of protection of this disclosure. Furthermore, the technical features described below in the different embodiments of this utility model may be combined as long as they do not conflict with each other.

[0038] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or solutions that meet both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0039] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0040] In the related art, the existing pillow core will compress the capillaries on the skin surface and the neck arteries during sleep, resulting in poor sleep quality and affecting sleep quality.

[0041] In view of the above problems, one embodiment of the present invention provides a pillow core 1, comprising a support layer 11 and a comfort layer 12 stacked from bottom to top, wherein the comfort layer 12 is a zero-pressure memory foam comfort layer, and the thickness of the comfort layer 12 is 3-4 cm; the comfort layer 12 is a first core body formed by filling a first memory foam, and the support layer 11 is a second core body formed by filling a second memory foam, wherein the first memory foam has a shorter compression rebound time than the second memory foam, and the density of the first memory foam is lower than the second memory foam;

[0042] The top surface of the pillow core 1 includes a first side sleeping portion 13 and a second side sleeping portion 14 located on the left and right sides, a recessed portion 15 located in the middle of the left and right sides, a first back sleeping portion 16 and a second back sleeping portion 17 located in the middle of the front and back sides, and a head nest portion 18 located in the middle of the pillow core 1. The first side sleeping portion 13 and the second side sleeping portion 14 are located on the back and front sides of the top surface of the pillow core respectively. The first back sleeping portion 16 and the second back sleeping portion 17 are located on the back and front sides of the top surface of the pillow core respectively. The height of the first side sleeping portion 13 is lower than that of the second side sleeping portion 14. The first back sleeping portion 1 6 is lower in height than the second back sleeping portion 17, the head nest portion 18 is lower in height than the recessed portion 15, and the height difference between the head nest portion 18 and the recessed portion 15 is 1-2 cm. The thickness ratio of the comfort layer 11 to the support layer 12 at the first side sleeping portion 13 is 3-4:5-7, the thickness ratio of the comfort layer 11 to the support layer 12 at the second side sleeping portion 14 is 3-5:6-9, the thickness ratio of the comfort layer 11 to the support layer 12 at the first back sleeping portion 16 is 3-4:5-6, and the thickness ratio of the comfort layer to the support layer at the second back sleeping portion 17 is 3-5:5-8;

[0043] The height of the first back sleeping portion 16 is lower than the first side sleeping portion 13 , and the height difference between the first back sleeping portion 16 and the first side sleeping portion 13 is 1-2 cm;

[0044] The second back sleeping portion 17 is lower than the second side sleeping portion 14 , and the height difference between the second back sleeping portion 17 and the second side sleeping portion 14 is 1-3 cm;

[0045] A plurality of transversely extending guide grooves 19 are provided on the front and rear sides of the top surface of the pillow core 1 , and all the guide grooves 19 are bent outward near the head socket 18 .

[0046] Another embodiment of the present invention further provides a pillow, which comprises the pillow core as described above and a pillowcase 2 for wrapping the pillow core, wherein the pillowcase 2 is made of far-infrared fabric.

[0047] A tie 3 is provided at the inner corners of the quilt cover 1 and / or at the middle position of the inner edges of at least one side of the quilt cover 1. An opening and a sealing element for opening or sealing the opening are provided at the edge of the quilt cover 1. The sealing element is a zipper, button or Velcro.

[0048] The present invention is described in detail below by way of specific examples. It should also be understood that the following examples are only used to specifically illustrate the present invention and are not to be construed as limiting the scope of protection of the present invention. Any non-essential improvements and adjustments made by those skilled in the art based on the above contents of the present invention fall within the scope of protection of the present invention.

[0049] Example 1

[0050] like Figure 1-2 As shown, Figure 1-2The pillow core of this embodiment is exemplarily shown, and the pillow core includes a support layer 11 and a comfort layer 12 stacked from bottom to top.

[0051] Please continue reading Figure 1 The support layer 11 provides reliable support for the head and neck. The support layer 11 is a second core filled with a second memory foam foam. For example, the second memory foam foam has an indentation rebound time of 3-5 seconds. Tests using a sponge hardness tester show a pressure value of 8-12F.

[0052] Specifically, this embodiment configures the pillow core to include a support layer 11 and a comfort layer 12 stacked from bottom to top, and the comfort layer 12 can reduce the pressure on the capillaries of the head, neck and shoulders, slowly release the pressure, relieve the tension in the neck muscles, and thus improve the quality of sleep; at the same time, the support layer 11 provides reliable support for the head and neck, and by configuring the support layer 11 to be a first core filled with a second memory foam, the slow rebound characteristics of the second memory foam can be used to reduce the pressure on the head and neck, provide firm support, maintain the natural physiological curvature of the cervical vertebra and spine while sleeping, reduce the pressure on the cervical artery, effectively maintain unobstructed blood flow in the carotid artery, improve the comfort of the pillow core during use, and thus improve the user experience.

[0053] Please continue reading Figure 1 The comfort layer 12 is used to reduce the pressure on the capillaries of the head, neck and shoulders, slowly release the pressure, relieve the tension of the neck muscles, and thus improve the quality of sleep. The comfort layer 12 is a zero-pressure memory foam comfort layer, and the thickness of the comfort layer 12 is 3-4cm; the comfort layer 12 is a first core filled with a first memory foam, and the first memory foam has a smaller indentation and rebound time than the second memory foam. For example, the first memory foam has a smaller indentation and rebound time than the second memory foam. For example, the sponge hardness tester is used for testing, and the test results show that the pressure value of the second memory foam is 0-5F, and the density of the first memory foam is smaller than that of the second memory foam. For example, the density of the first memory foam can be 35-45D, and the density of the second memory foam can be 45-55D.

[0054] Please continue reading Figure 2The top surface of the pillow core includes a first side sleeping portion 13 and a second side sleeping portion 14 located on the left and right sides, a recessed portion 15 located in the middle of the left and right sides, a first back sleeping portion 16 and a second back sleeping portion 17 located in the middle of the front and back sides, and a head nest portion 18 located in the middle of the pillow core 1. The first side sleeping portion 13 and the second side sleeping portion 14 are respectively located on the back and front sides of the top surface of the pillow core, and the first back sleeping portion 16 and the second back sleeping portion 17 are respectively located on the back and front sides of the top surface of the pillow core. The height of the first side sleeping portion 13 is lower than that of the second side sleeping portion 14, the height of the first back sleeping portion 16 is lower than that of the second back sleeping portion 17, and the height of the head nest portion 18 is lower than that of the recessed portion 15. The height difference between the head nest portion 18 and the recessed portion 15 is 1-2cm, the thickness ratio of the comfort layer 11 to the support layer 12 at the first side sleeping part 13 is 3-4:5-7, the thickness ratio of the comfort layer 11 to the support layer 12 at the second side sleeping part 14 is 3-5:6-9, the thickness ratio of the comfort layer 11 to the support layer 12 at the first supine sleeping part 16 is 3-4:5-6, and the thickness ratio of the comfort layer to the support layer at the second supine sleeping part 17 is 3-5:5-8; the height of the first supine sleeping part 16 is lower than the first side sleeping part 13, and the height difference between the first supine sleeping part 16 and the first side sleeping part 13 is 1-2cm; the height of the second supine sleeping part 17 is lower than the second side sleeping part 14, and the height difference between the second supine sleeping part 17 and the second side sleeping part 14 is 1-3cm.

[0055] Specifically, this embodiment prevents pressure on the face and ears during side sleeping by setting the first back sleeping portion 16 lower than the first side sleeping portion 13, with the height difference between the first back sleeping portion 16 and the first side sleeping portion 13 being 1-2 cm. This effectively enhances the comfort of side sleeping and the user experience. By setting the second back sleeping portion 17 lower than the second side sleeping portion 14, with the height difference between the second back sleeping portion 17 and the second side sleeping portion 14 being 1-3 cm, this prevents pressure on the face and ears during side sleeping and the user experience. By setting the headrest portion 18 lower than the recessed portion 15, with the height difference between the headrest portion 18 and the recessed portion 15 being 1-2 cm, this prevents pressure on the face and ears during sleep and the user experience.

[0056] Please continue reading Figure 2 A plurality of laterally extending guide grooves 19 are provided on the front and rear sides of the top surface of the pillow core, and all the guide grooves 19 are bent outward near the head socket portion 18.

[0057] Specifically, this embodiment can reduce the contact area between the neck and the pillow core by adding a number of laterally extending guide grooves 19 on the front and back sides of the top surface of the pillow core, increase the air circulation on the top of the pillow core, reduce the stuffy feeling of the neck, and thus improve the comfort of the pillow core during use, thereby improving the user experience; by setting all the guide grooves 19 to bend outward near the head nest 18, sufficient space can be provided for the head nest, improving the fit between the head nest 18 and the brain, improving the comfort of the pillow core during use, and thereby improving the user experience.

[0058] The principle of the pillow core of this embodiment is as follows: the pillow core is configured to include a support layer 11 and a comfort layer 12 stacked from bottom to top, the comfort layer 12 is a zero-pressure memory foam comfort layer, the thickness of the comfort layer 12 is greater than or equal to 3 cm, the top surface of the pillow core includes a first side sleeping portion 13 and a second side sleeping portion 14 located on the sides of the left and right sides, a recessed portion 15 located in the middle of the left and right sides, a first back sleeping portion 16 and a second back sleeping portion 17 located in the middle of the front and back sides, and a head nest portion 18 located in the middle of the pillow core, the first side sleeping portion 13 and the second side sleeping portion 14 are respectively located on the back and front sides of the top surface of the pillow core, the first back sleeping portion 16 and the second back sleeping portion 17 are respectively located on the back and front sides of the top surface of the pillow core, the height of the first side sleeping portion 13 is lower than that of the second side sleeping portion 14, the height of the first back sleeping portion 16 is lower than that of the second back sleeping portion 17, the height of the head nest portion 18 is lower than the recessed portion 15, and the comfort layer 1 is located at the first side sleeping portion 13 2 and the support layer 11 has a thickness ratio of 3-4:5-7, the thickness ratio of the comfort layer 12 to the support layer 11 at the second side sleeping part 14 is 3-5:6-9, the thickness ratio of the comfort layer 12 to the support layer 11 at the first supine sleeping part 16 is 3-4:5-6, and the thickness ratio of the comfort layer 12 to the support layer 11 at the second supine sleeping part 17 is 3-5:5-8, which can ensure that the hardness of the comfort layer is close to zero during use of the pillow core, and will not compress the capillaries on the skin surface and the neck arteries during sleep, thereby increasing the blood oxygen content in the human head, prolonging the time of deep sleep, and improving the sleep quality; at the same time, increasing the blood oxygen content in the head is helpful to improve the health level of the human body; in addition, the support layer can provide reliable support, reduce the pressure on the head and neck, provide stable support, maintain the natural physiological curvature of the cervical vertebra and spine for sleeping, reduce the pressure on the neck artery, and effectively maintain smooth blood flow in the carotid artery.

[0059] Example 2

[0060] like Figure 3 As shown, Figure 3 The pillow of this embodiment is shown as an example.

[0061] Please continue reading Figure 3The pillow of this embodiment includes a pillow core 1 as shown in Example 1 and a pillowcase 2 for wrapping the pillow core 1. The pillowcase 2 is made of a far-infrared fabric pillowcase, that is, a pillowcase made of a fabric with far-infrared function. The far-infrared fabric pillowcase can be made of at least one of the following fibers: cotton fiber, silk fiber, linen, lyocell fiber, viscose fiber, cuprammonium fiber, acetate fiber, wool, polyester fiber, soybean fiber, etc.

[0062] Specifically, this embodiment can give the pillow an antibacterial effect (against Staphylococcus aureus, Escherichia coli, Candida albicans, and Klebsiella pneumoniae) by setting the pillowcase 2 to be a far-infrared fabric pillowcase. At the same time, far-infrared rays have a certain penetrating power and can penetrate deep into the human body, causing resonance in the deep subcutaneous tissue of the neck, thereby promoting blood circulation in the bilateral internal arteries and vertebral arteries of the neck, and significantly improving the user's sleep quality.

[0063] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A pillow core, characterized in that: The pillow core includes a support layer and a comfort layer stacked from bottom to top, the comfort layer is a zero-pressure memory foam comfort layer, the thickness of the comfort layer is greater than or equal to 3 cm, the top surface of the pillow core includes a first side sleeping portion and a second side sleeping portion located on the left and right sides, a recessed portion located in the middle of the left and right sides, a first back sleeping portion and a second back sleeping portion located in the middle of the front and back sides, and a head nest portion located in the middle of the pillow core, the first side sleeping portion and the second side sleeping portion are respectively located on the back and front sides of the top surface of the pillow core, and the first back sleeping portion and the second back sleeping portion are respectively located on the top surface of the pillow core On the back and front sides, the height of the first side sleeping part is lower than that of the second side sleeping part, the height of the first back sleeping part is lower than that of the second back sleeping part, the height of the head nest part is lower than that of the recessed part, the thickness ratio of the comfort layer to the support layer at the first side sleeping part is 3-4:5-7, the thickness ratio of the comfort layer to the support layer at the second side sleeping part is 3-5:6-9, the thickness ratio of the comfort layer to the support layer at the first back sleeping part is 3-4:5-6, and the thickness ratio of the comfort layer to the support layer at the second back sleeping part is 3-5:5-8.

2. The pillow core according to claim 1, wherein: The thickness of the comfort layer is 3-4 cm.

3. The pillow core according to claim 1, wherein: The height of the first back sleeping part is lower than that of the first side sleeping part; And / or, the comfort layer adopts a first core filled with a first memory foam, and the support layer adopts a second core filled with a second memory foam, the first memory foam has a smaller compression rebound time than the second memory foam, and the density of the first memory foam is smaller than that of the second memory foam.

4. The pillow core according to claim 3, wherein: The height difference between the first back sleeping part and the first side sleeping part is 1-2 cm.

5. The pillow core according to claim 1, wherein: The second back sleeping part is lower in height than the second side sleeping part; And / or, the height difference between the head socket portion and the recessed portion is 1-2 cm.

6. The pillow core according to claim 5, wherein: The height difference between the second back sleeping part and the second side sleeping part is 1-3 cm.

7. The pillow core according to claim 1, wherein: A plurality of laterally extending guide grooves are provided on the front and rear sides of the top surface of the pillow core.

8. The pillow core according to claim 7, wherein: All the guide grooves are bent outwards near the head socket.

9. A pillow, characterized in that: The pillow comprises a pillow core according to any one of claims 1 to 8 and a pillowcase for wrapping the pillow core.

10. The pillow according to claim 9, wherein The pillowcase is made of far-infrared fabric.

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