Support device with firmness and temperature control

Abstract

The present disclosure provides a support device (1) selected from a mattress, a pillow, a neck cushion or a seat cushion, wherein the support device (1) has a support side (11) and an oppositely arranged base side (12). The support device (1) comprises a temperature control layer (2) facing the support side (11) and configured for controlling a contact temperature on the support side (11) of the support device (1). The temperature control layer (2) comprises at least one receptacle (3) for containing a temperature-regulating liquid. The support device (1) further comprises a pneumatic layer (4) arranged between the temperature control layer (2) and the base side (12) and configured for controlling the firmness of the support device (1), wherein the pneumatic layer (4) comprises one or more gas chambers (51, 52).

Description

[0001] P28983PC00 14.01.2026

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[0003] Support Device with Firmness and Temperature Control FIELD OF THE INVENTION

[0004] The present disclosure relates to a support device, such as a mattress, a pillow, a neck cushion or a seat cushion, with firmness and temperature control, and to a support device assembly comprising said support device.

[0005] BACKGROUND OF THE INVENTION

[0006] Sleep is essential for a healthy life. To ensure a high quality of sleep, a mattress should meet various requirements. For example, it should ensure a consistently healthy sleeping position to allow for pain-free sleep and it should be at the right temperature throughout the night to allow for fast, deep and stable sleep. Other desirable properties of mattresses are that they can be manufactured easily and cost-effectively, that they are highly recyclable and that they can be widely adapted to meet the needs of different users.

[0007] Various mattresses are known from the prior art, but they suffer from a range of drawbacks. For example, the known spring-core and foam mattresses are typically not adaptable in their firmness or temperature. They can only be optimized for a single sleeping position and cannot effectively support the body's thermoregulation.

[0008] Although air mattresses and waterbed mattresses are known which allow a certain degree of adaptability (e.g. in terms of the mattress’ firmness), these mattresses have significant disadvantages. In particular, the simultaneous adaptability of the degree of firmness and of the temperature remains an unsolved problem. While some mattresses may appear to provide control over firmness and temperature, the control is often rather limited, for example because the known mattresses rely on passive solutions only such as mattresses with gellayers that are supposed to dissipate heat from the body. By contrast, active control over firmness and temperature remains challenging. Furthermore, many known mattresses suffer from limited heat capacity, which limits the cooling function.P28983PC00 14.01.2026

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[0010] Furthermore, many mattresses are difficult to recycle or only portions of the mattress can be recycled, which significantly increases the ecological footprint of the mattresses. The known mattresses are also costly to produce.

[0011] SUMMARY OF THE DISCLOSURE

[0012] It is the general object of the present disclosure to advance the state of the art in the field of support devices, particularly mattresses, and preferably to overcome at least some of the disadvantages of the prior art, such as the ones discussed above, fully or at least partly. Ideally, a support device (e.g. a mattress) would be provided that allows for adjustment of firmness and temperature. The firmness and temperature should preferably be adjustable with a high degree of accuracy and over a wide range of firmness degrees and / or temperatures to meet the needs of different users. In at least some embodiments, the degree of firmness and / or the temperature should be controlled automatically. Furthermore, it would be particularly desirable if the support device (e.g. mattress) were easy to manufacture and / or easy to recycle and / or fully recyclable.

[0013] The general object is achieved by the subject-matter of the independent claims. Further favorable embodiments follow from the dependent claims and the overall disclosure. The following summary is provided to introduce the reader to the more detailed discussion to follow. It is not intended to limit the disclosure to certain embodiments.

[0014] A first aspect of the present disclosure relates to a support device. The support device may for example either be a mattress, a pillow, a neck cushion, or a seat cushion. The support device has a support side and an oppositely arranged base side.

[0015] The support device comprises a temperature control layer facing the support side and configured for controlling a contact temperature on the support side of the support device. The temperature control layer comprises at least one receptacle for containing a temperatureregulating liquid, such as water.

[0016] The support device further comprises a pneumatic layer arranged between the temperature control layer and the base side. The pneumatic layer is configured for controlling a firmness of the support device. The pneumatic layer comprises one or more gas chambers, such asP28983PC00 14.01.2026

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[0018] air chambers. The one or more gas chambers are preferably one or more inflatable gas chambers.

[0019] By providing a temperature control layer and a pneumatic layer, the support device disclosed herein allows active control over both the firmness and the temperature of the support device, thereby contributing to high-quality sleep. In particular, the support device allows adjusting the temperature and the firmness to the individual needs of a user, thereby making the support device highly versatile and allowing a maximum of individualization options. Furthermore, providing a temperature control layer and a pneumatic layer allow for high modularity to combine different versions of each layer to meet an individual user’s specific needs.

[0020] Further advantages arise from the specific combination of using a pneumatic layer for firmness control and a temperature-regulating liquid for temperature control. Specifically, using gases such as air have proven to be particularly advantageous for controlling the firmness of the support device because gases have a relatively low density, thereby contributing to a low weight of the support device, while still allowing to adjust the firmness across a broad range by controlling the pressure of the gas. Furthermore, the pressure of a gas can be changed quickly, easily and reliably, thereby allowing accurate and fast control over the firmness of the support device. Furthermore, gases do not cause damage upon leaking.

[0021] Concurrently, controlling the temperature of the support side of the support device through a temperature-regulating liquid such as water is particularly advantageous because it is significantly more energy-efficient than other possible temperature carriers such as gases. In particular, liquids such as water have a significantly higher heat capacity than gases such as air, thereby making energy storage more efficient and allowing a target temperature to be maintained more easily and more efficiently.

[0022] In some preferred embodiments, the support device described herein is a mattress. In these embodiments, therefore, the term “support device” may optionally be replaced by the term “mattress”. In other embodiments, however, the support device may be a pillow, a neck cushion or a seat cushion.

[0023] As used herein, the term “mattress” is not particularly limited. Non-limiting examples include a mattress of a conventional bed, or a mattress of a camper bed or a van bed. The mattressP28983PC00 14.01.2026

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[0025] may be used for indoor or outdoor applications. Similarly, the term “seat cushion” is not particularly limited. For example, the seat cushion may either be a separate cushion which may e.g. be placed on different surfaces (e.g. the floor or pieces of furniture) to provide a seating or lying opportunity, or it may be part of a piece of furniture (e.g. the seat cushion may be part of a sofa or couch, or the seat cushion may be integrated into a chair such as a wheel chair).

[0026] Definitions

[0027] Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosure pertains. In describing the embodiments and claiming the disclosure, the following terminology will be used in accordance with the definitions set out below.

[0028] The support device described herein has a base side and a support side. The support side is configured for supporting e.g. an individual lying or sitting on the support device. It may also be labelled as top side of the support device. The base side may also be labelled as bottom side of the support device.

[0029] In the present disclosure, the support device is described in the context of three spatial directions, which are orthogonal to each other, namely a longitudinal direction, a lateral direction and a transverse direction. The support side and the base side of the support device each extend essentially in the longitudinal direction and in the lateral direction. Furthermore, the support side and the base side are interspaced from each other in the transverse direction. Thus, it can be said that the support device has a length in the longitudinal direction, a width in the lateral direction and a thickness in the transverse direction.

[0030] In cases where the support device is a mattress, the mattress typically has at least a head segment, a torso segment and a leg segment. The torso segment is arranged in longitudinal direction between the head segment and the leg segment.

[0031] As used herein, the mattress may also have different properties and / or structural features in different sections of the mattress. As used herein, a section of the mattress denotes any portion of the mattress having an extension in longitudinal and lateral direction. A given section may for example be a portion of a torso segment. However, a given section may alsoP28983PC00 14.01.2026

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[0033] comprise portions of multiple segments, e.g. a portion of the torso segment and a portion of the leg segment.

[0034] Deformable Separation Wall

[0035] The at least one receptacle of the temperature control layer is configured to contain the temperature-regulating liquid, while the one or more gas chambers are configured to contain a gas such as air. It is understood that an inner volume of the receptacle(s) and an inner volume of the gas chamber(s) are separated from each other in order to ensure that the temperatureregulating liquid and the gas do not mix. Depending on the application, the inner volume of the receptacle and the inner volume of the gas chamber may be separated in different ways.

[0036] In some embodiments, the inner volume of the at least one receptacle is separated from the inner volume of at least one of the one or more gas chambers by one or more separation layers. These one or more separation layers are preferably deformable, thereby establishing a pressure communication between the receptacle and the gas chamber.

[0037] In preferred embodiments, the inner volume of the at least one receptacle is separated from the inner volume of at least one of the one or more gas chambers by a deformable separation wall. Thereby, for example, a pressure communication between the receptacle (e.g. the bladder) and the gas chamber may be established. These embodiments are particularly advantageous because they ensure that the firmness-controlling pressure inside the gas chambers also influences the pressure inside the receptacle (e.g. the bladder), thereby effectively carrying the firmness through the receptacle and further towards the support side, ultimately allowing the firmness to be felt more strongly on the support side even though the receptacle is arranged between the pneumatic layer and the support side of the support device. A further advantage is that immersion or sinking of the temperature control layer into the pneumatic layer, which may otherwise not occur if the two layers were interspaced by an additional comfort layer, is maximized. Thereby, the full range of firmness can be carried to the support surface more directly.

[0038] A further advantage is that the flow of the temperature-regulating liquid (e.g. water) through the receptacle is facilitated and the risk of local flow barriers due to local overpressures is minimized. For example, if the inner volumes of the receptacle and the gas chamber were separated by a firm, undeformable wall, a local overload may create a local overpressure atP28983PC00 14.01.2026

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[0040] a given position of the receptacle, which may be so high that the receptacle is pressed against the firm, undeformable wall, which may create a flow barrier. However, by providing a deformable separation wall, the liquid pressure at the given position of the receptacle can cause the deformable wall to be deflected towards the inner volume of the gas chamber (i.e. e.g. downwards) at this point of local overload, creating a passage opening for the liquid to continue flowing through the receptacle, thereby preventing a flow barrier to be established. If the pressure of the gas chamber is also high, the deformable wall can e.g. be deflected towards the inner volume of the receptacle (i.e. e.g. upwards) at another point of the support device that does not experience any overloads in order to balance the pressure between the inner volumes of the receptacle and of the gas chamber.

[0041] Depending on the application, the deformable separation wall can be designed in different ways. In typical embodiments, the deformable separation wall is deformable in both directions, i.e. e.g. towards the support side of the support device and towards the base side of the support device. In some embodiments, in an inflated state of the support device, the deformable separation wall is flat and / or convex towards the support side (the “and”-combi-nation may e.g. mean that some sections of the deformable separation wall are flat and other sections are convex). However, it is also possible for the deformable separation wall to be flat and / or concave towards the base side in the inflated state of the support device. Irrespective of the direction of deformation, in some embodiments, the deformable separation wall is elastically deformable. Alternatively or in combination, the deformable separation wall may be made of an elastic material, such as a soft elastic material. It is understood that the deformable separation wall is fluid-tight in order to prevent gas inside the gas chamber from mixing with liquid inside the receptacle.

[0042] In a typical embodiment, the deformable separation wall is reversibly deformable. Thereby, for example, an equilibrium of forces may be established between a gas chamber force, a receptacle force and a deformation force of the separation wall, wherein the gas chamber force corresponds to an internal pressure of the gas inside the gas chamber and the receptacle force corresponds to an internal pressure of the temperature-regulating liquid inside the receptacle.

[0043] Depending on the application, the deformable separation wall may be arranged in different segments or sections of the support device, preferably of the mattress. Preferably, the de-P28983PC00 14.01.2026

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[0045] formable separation wall is arranged at least in the torso segment of the mattress, and preferably also in the leg segment and / or in the head segment. These embodiments are particularly advantageous because the torso segment is particularly prone to overloads.

[0046] In some embodiments, the deformable separation wall extends in lateral direction across at least 10%, preferably at least 20%, more preferably at least 30%, e.g. at least 50%, such as at least 75%, of a width of the support device in lateral direction. It is understood that the exact width of the support device may differ. In some embodiments, the deformable separation wall extends at least 50 mm, preferably at least 100 mm, more preferably at least 200 mm, in lateral direction.

[0047] Furthermore, in some embodiments, the deformable separation wall extends in lateral direction across a central lateral section of the support device. The central lateral section of the support device may e.g. encompass a portion of the support device that is arranged centrally in lateral direction and that has a width in lateral direction of 10%, preferably at least 20%, more preferably at least 30%, of a width of the support device in lateral direction.

[0048] In a typical embodiment, the deformable separation wall has a first side contacting the inner volume of the receptacle and an oppositely arranged second side contacting the inner volume of the at least one gas chamber.

[0049] Depending on the application, the deformable separation wall may be embodied in different ways. For example, the deformable separation wall may e.g. be a single foil or plastic sheet. In some embodiments, the deformable separation wall is formed by welding two foil sheets together.

[0050] Regardless of whether the support device comprises a deformable separation wall or not, it may be advantageous, at least in some embodiments, if the temperature control layer and the pneumatic layer are interconnected with each other in a non-cushioning manner. For example, the temperature control layer and the pneumatic layer may contact each other, or the temperature control layer and the pneumatic layer may be interspaced by one or more non-cushioning layers. By interconnecting the temperature control layer and the pneumatic layers in a non-cushioning manner, immersion or sinking of the temperature control layer into the pneumatic layer, which may otherwise not occur if the two layers are interspaced by anP28983PC00 14.01.2026

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[0052] additional cushioning layer (e.g. a cushioning comfort layer), is maximized. Thereby, the full range of firmness can be carried to the support surface more directly.

[0053] In some embodiments, the temperature control layer and the pneumatic layer contact each other in at least a section of the support device. For example, the deformable separation wall may be arranged in that section.

[0054] Depending on the application, the temperature control layer and the pneumatic layer may be materially bonded to each other, or they may be separate from (e.g. attachable to) each other.

[0055] In some embodiments, the temperature control layer and the pneumatic layer are materially bonded to each other, preferably welded or glued to each other.

[0056] In some embodiments, the temperature control layer and the pneumatic layer are held together by an encasement (e.g. an outer cover) inside which the temperature control layer and the pneumatic layer are arranged. For example, the encasement may be configured such that displacement of the temperature control layer with respect to the pneumatic layer in the longitudinal direction and / or in the lateral direction is blocked. Preferred embodiments of the encasement are described in further detail below.

[0057] Foil Sheets

[0058] In particularly advantageous embodiments, at least one gas chamber of the pneumatic layer is formed by a first foil sheet and a second foil sheet circumferentially materially bonded to the first foil sheet. For example, the second foil sheet may be circumferentially welded or glued to the first foil sheet. The circumferential material bond (e.g. weld) defines an inner volume corresponding to the inner volume of the respective gas chamber. These embodiments are advantageous because they are easy to manufacture. For example, the manufacturing may e.g. only involve aligning the first and second foil sheet and then applying a circumferential weld.

[0059] In some embodiments, each gas cell is essentially round (e.g. oval) in a cross-section orthogonal to the lateral direction.P28983PC00 14.01.2026

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[0061] In some embodiments, the second foil sheet is circumferentially materially bonded (e.g. welded or glued) to the first foil sheet, and the circumferential material bond (e.g. the circumferential weld or the circumferential glued connection) comprises a first lateral material bond (e.g. a first lateral weld seam or a first lateral glue seam) and a second lateral material bond (e.g. a second lateral weld seam or a second lateral glue seam) arranged opposite the first lateral material bond in lateral direction (e.g. opposite the first lateral weld seam in lateral direction or opposite the first lateral glue seam in lateral direction).

[0062] The first lateral material bond (e.g. the first lateral weld seam or the first lateral glue seam) preferably forms a plurality of arcs in a cross-section parallel to the longitudinal direction and parallel to the lateral direction. Each arc of said plurality of arcs preferably limits a respective gas cell.

[0063] Alternatively or in combination, the second lateral material bond (e.g. the second lateral weld seam or the second lateral glue seam) preferably forms a plurality of arcs in a cross-section parallel to the longitudinal direction and parallel to the lateral direction. Each arc of said plurality of arcs preferably limits a respective gas cell.

[0064] One advantage of these arcs is that they provide a stable three-dimensional structure which avoids an overly strong pressure on any single material bond seam.

[0065] In preferred embodiments, each gas cell is delimited in lateral direction by two oppositely arranged arc-shaped material bonds (e.g. arc-shaped weld seams or arc-shaped glue seams), and in longitudinal direction by two oppositely arranged essentially linear material bonds (e.g. weld seams or glue seams). Preferably, said two arc-shaped material bonds (e.g. arc-shaped weld seams or arc-shaped glue seams) and said two essentially linear material bonds (e.g. essentially linear weld seams or essentially linear glue seams) circumferentially encompass the respective gas cell in a cross section parallel to the longitudinal direction and parallel to the lateral direction. These embodiments provide stable gas cells which form well-defined three-dimensional structures upon inflation. Preferably, each arc extends from a first of the two essentially linear material bonds (e.g. essentially linear weld seams or essentially linear glue seams) to a second of the two essentially linear material bonds (e.g. essentially linear weld seams or essentially linear glue seams).P28983PC00 14.01.2026

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[0067] As explained in further detail below, at least one of the two oppositely arranged essentially linear material bonds (e.g. essentially linear weld seams or essentially linear glue seams) preferably comprises at least one gap to establish a fluidic interconnection between two adjacent gas cells.

[0068] In some further embodiments, the temperature control layer is formed by the second foil sheet and a third foil sheet circumferentially materially bonded to the second foil sheet. For example, the third foil sheet may be circumferentially welded or glued to the second foil sheet. Once again, the circumferential material bond (e.g. circumferential weld or circumferential glued connection) defines an inner volume corresponding to the inner volume of the respective receptacle. These embodiments facilitate manufacturing even further. In some embodiments, the third foil sheet is additionally welded to the second foil sheet along welding lanes defining channels.

[0069] Depending on the application, the first, second and / or third foil sheet may be made of different materials. For example, the first foil sheet may be made of a thermoplastic polymer such as polyvinyl chloride (PVC), or a thermoplastic elastomer such as thermoplastic polyurethane (TPU). Alternatively or in combination, the second foil sheet may for example be made of a thermoplastic polymer such as PVC, or a thermoplastic elastomer such as TPU. Alternatively or in combination, the third foil sheet may for example be made of a thermoplastic polymer such as PVC, or a thermoplastic elastomer such as TPU. In some embodiments, the first, second and third foil sheets are each made of the same material, e.g. PVC or TPU.

[0070] Depending on the application, different welding techniques may be used to weld the second foil sheet to the first foil sheet, respectively to mold the third foil sheet to the second foil sheet. For example, the welding may involve high-frequency welding, which is particularly advantageous to achieve a durable connection.

[0071] In some embodiments, the temperature control layer and the pneumatic layer are attachable to each other, preferably releasably attachable to each other. One advantage of these embodiments is that the temperature control layer and the pneumatic layer may be replaced independently of each other, e.g. if one of the two layers has a leak, thereby reducing waste. Depending on the machinery used, manufacturing can also be simplified by reducing the need for complicated welding steps. As an example, in some embodiments, at least one gas chamber of the pneumatic layer is formed by the first foil sheet and the second foil sheetP28983PC00 14.01.2026

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[0073] circumferentially welded to the first foil sheet. Optionally, the temperature control layer may be formed by a fourth foil sheet and a fifth foil sheet circumferentially welded to the fourth foil sheet. The fourth foil sheet may e.g. be attachable to the second foil sheet.

[0074] Depending on the application, different connectors may be used to attach the temperature control layer to the pneumatic layer. For example, the temperature control layer may comprise a set of first Velcro elements and the pneumatic layer may comprise a complementary set of second Velcro elements facing the first set of Velcro elements. Other connectors that may be used include clips, snaps, magnets, hooks or fasteners. One advantage of these connectors is that they ensure a reliable attachment while also allowing release of the attachment.

[0075] In preferred embodiments, the temperature control layer and the pneumatic layer are attachable to each other such that lateral and / or longitudinal displacement of the temperature control layer with respect to the pneumatic layer is essentially blocked. These embodiments ensure that the sleeping position is not indirectly altered by relative movement of the temperature control layer and the pneumatic layer with respect to each other. They also ensure that an optimal alignment of the temperature control layer and the pneumatic layer is maintained.

[0076] Temperature Control Layer

[0077] The temperature control layer is configured for controlling a contact temperature on the support side of the support device. To this end, the temperature control layer comprises at least one receptacle for containing a temperature-regulating liquid, such as water.

[0078] Depending on the application, the temperature control layer may influence or otherwise control the temperature on the support side of the support device in different ways. In some embodiments, the temperature control layer is arranged on the support side of the support device. For example, one side of the temperature control layer may form a part of the support side of the support device, or even the entire support side of the support device. In further embodiments, one or more additional layers (e.g. one or more cushioning comfort layers) may be arranged between the temperature control layer and the support side of the support device. In these embodiments, the one or more additional layers (e.g. the one or more cushioning comfort layers) are configured to conduct heat from the temperature control layer to the support side.P28983PC00 14.01.2026

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[0080] The receptacle may have different configurations, forms and shapes, and is not particularly limited, provided that it is able to contain the temperature-regulating liquid (typically water). For example, depending on the application, the receptacle may be made of a deformable material, a flexible material, an elastic material, or a rigid material. In some embodiments, the receptacle comprises or is a bladder, as described in further detail below. Preferably, the bladder is made of a deformable material. In some embodiments, the receptacle comprises or consists of one or more channels as also described in further detail below.

[0081] Depending on the application, the receptacle may have different configurations. In some embodiments, the receptacle is configured to contain the temperature-regulating liquid over a prolonged period of time. In some embodiments, the temperature-regulating liquid continuously flows through the receptacle. Irrespective of whether the liquid flows continuously or not, the receptacle typically comprises a liquid inlet and a liquid outlet. The liquid inlet is typically arranged opposite the liquid outlet with respect to the longitudinal direction. This ensures that the entire length of the support device is exposed to the temperature-regulating liquid. For example, the liquid inlet may be arranged in a head segment and the liquid outlet may be arranged in a leg segment. However, it is also possible for the liquid inlet and the liquid outlet to be arranged in the same segment (e.g. in the leg segment or in the head segment), potentially even adjacent to each other. In some embodiments, the liquid inlet and the liquid outlet may even be embodied by a single piece, e.g. a single valve which may be switched between inflow and outflow.

[0082] Irrespective of the position of the liquid inlet and the liquid outlet, the liquid inlet and the liquid outlet may define a liquid flow path extending from the liquid inlet to the liquid outlet. Depending on the application, the liquid flow path may follow different patterns, shapes or profiles.

[0083] In some embodiments, the receptacle comprises (or consists of) one or more bladders. In embodiments in which the support device comprises more than one receptacle, at least one (or even each) of the receptacles may comprise (or consist of) one or more bladders.

[0084] In some embodiments, the receptacle (or at least one of the one or more receptacles) comprises a plurality of at least two flu idically interconnected channels which are preferably arranged behind each other in longitudinal direction of the support device. By arranging the channels in longitudinal direction behind each other, the temperature distribution across theP28983PC00 14.01.2026

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[0086] entire surface of the support device is improved. In particular, the risk of strong local temperature gradients which may negatively impact the sleep quality is minimized. Furthermore, arranging the channels behind each other in longitudinal direction allows to progressively change the temperature of the support device in longitudinal direction, which may be desirable to ensure that e.g. the leg segment is heated first, followed by the torso segment, and ultimately the head segment. Other directions of progressive heating are also possible. Progressive heating in longitudinal direction may be desirable because certain body parts such as body extremities (e.g. the feet) may be more temperature sensitive and more prone to freezing than other body parts, so it may be desirable to heat certain body parts such as extremities (e.g. the feet) more quickly than other body parts. Because the exact position of the feet may change in lateral direction, it may further be desirable to heat essentially the entire leg segments, before heating the torso segment.

[0087] In a preferred embodiment, each channel extends essentially in lateral direction. This further contributes to a smooth temperature distribution and minimizes the risk of strong local temperature gradients.

[0088] If the receptacle comprises the plurality of at least two fluidically interconnected channels, it is understood that the channels are fluidically interconnected with each other, such that the temperature-regulating liquid may pass from one channel to another channel. In a typical embodiment, the at least two channels are arranged behind each other in a liquid flow direction of the temperature-regulating liquid. For example, each channel may comprise an upstream end and a downstream end, and every pair of two fluidically neighboring channels of the plurality of channels is fluidically interconnected to each other by the downstream end of the more upstream channel of the pair of neighboring channels and the upstream end of the more downstream channel of the pair of neighboring channels. For example, a downstream end of a first channel may be fluidically interconnected with an upstream end of a second channel arranged downstream of the first channel.

[0089] In preferred embodiments, the at least two channels of the receptacle define a meandering liquid flow path of the temperature-regulating liquid. Providing a meandering liquid flow path is particularly advantageous to achieve a homogeneous temperature distribution across the support side of the support device and to minimize any strong local temperature gradients, i.e. to ensure a smooth temperature distribution. Further, the meandering liquid flow path further contributes to allowing efficient progressive heating along the longitudinal direction ofP28983PC00 14.01.2026

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[0091] the support device. For example, if hot water is pumped through the meandering flow path from the leg segment of the support device (being a mattress) to the torso or head segment, the meandering flow path ensures that the leg segment is thoroughly heated first before the torso segment (or even the head segment). This could e.g. be advantageous if a rapid increase in body temperature and in the comfort of a user is required because the feet and other body extremities tend to be particularly temperature sensitive. A further advantage of using a meandering liquid flow path is that the exposure time of the temperature-regulating liquid (e.g. water) is maximized, thereby contributing to a high energy efficiency because less liquid needs to flow over time. In a particularly preferred embodiment, the liquid flow path extends from a liquid inlet to a liquid outlet arranged opposite the liquid entry opening in longitudinal direction of the support device.

[0092] Depending on the application, the channels may have different shapes and configurations. In some embodiments, each channel is separated from each adjacent channel by a border area, preferably by a border line. The border area, respectively the border line, may for example extend essentially in lateral direction. Thus, they may essentially constitute side walls of each channel.

[0093] It is particularly advantageous to form the border area or the border line by a weld seam. This is advantageous because weld seams are easy to obtain, thereby facilitating manufacturing, while also ensuring impermeability to the temperature-regulating liquid (e.g. water).

[0094] Irrespective of how they are formed, depending on the application, the border area or border line may have different shapes. As an example, the border line may be essentially straight, or it may be curved. It is also possible for the border line to comprise an essentially straight section and a curved section. The border area or border line may be formed in a single, throughgoing weld, or it may be formed from a plurality of welding dots.

[0095] In some embodiments outlined in further detail below, each of the one or more gas chambers comprises a plurality of at least two gas cells fluidically interconnected with each other, and each gas cell is separated from each adjacent gas cell by a cell wall (wherein the cell wall may e.g. extend in a lateral direction of the support device). In these embodiments, it is particularly advantageous if the border area (or the border line) overlaps with the cell wall in a cross-section parallel to the longitudinal direction and to the lateral direction. This is a particularly advantageous embodiment because it further facilitates manufacturing and increasesP28983PC00 14.01.2026

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[0097] comfort for the user. For example, the border area may be formed by welding e.g. of a foil sheet, and the same welding operation may also be used to connect the cell wall e.g. to the respective foil sheet. Thus, the support device may comprise a plurality of weld seams, wherein each weld seam may concomitantly form a border area (or a border line) and fixate one of the cells walls. A further reason why overlapping the border area (or the border line) with the cell wall is that the risk of creating local flow barriers for the temperature-regulating liquids is minimized even in cases of local overloads. It is particularly advantageous to ensure that at least 50% of all border areas, preferably at least 75%, more preferably all, of the border areas overlap with a cell wall in a cross-section parallel to the longitudinal direction and to the lateral direction.

[0098] Depending on the application, the temperature control layer and the one or more gas chambers may have different arrangements with respect to each other. In some embodiments, at least a circumferential portion of the temperature control layer (e.g. a first and second lateral portion of the temperature control layer) is aligned with the one or more gas chambers in a cross-section orthogonal to the transverse direction.

[0099] In some embodiments, the temperature control layer interconnects at least two gas chambers to each other, wherein the temperature control layer preferably extends across the head segment and the torso segment of the mattress. For example, a first section of the temperature control layer may be interconnected with (e.g. directly connected to) a first gas chamber, and a second section of the temperature control layer may be interconnected with (e.g. directly connected to) a second gas chamber. For example, the first section of the temperature control layer may be attached to the first gas chamber, and the second section of the temperature control layer may be attached to the second gas chamber. These embodiments are particularly advantageous because they ensure that the at least two gas chambers and the temperature control layer maintain a certain desired relative arrangement with respect to each other. In particular, displacement of the first or second gas chamber with respect to each other or with respect to the temperature control layer is minimized.

[0100] Depending on the application, different liquid pressures may be used in the receptacle. In some embodiments, the receptacle is configured to withstand a hydraulic pressure of at least 0.1 bar, preferably at least 0.3 bar. For example, in some embodiments, the receptacle is configured to withstand a hydraulic pressure corresponding to 3 meters water head.P28983PC00 14.01.2026

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[0102] Pneumatic Layer

[0103] The pneumatic layer is configured for controlling a firmness of the support device. To this end, the pneumatic layer comprises one or more gas chambers, preferably one or more inflatable gas chambers. For example, the one or more gas chambers may e.g. be air chambers, but in principle, any gas other than air or any gas mixture comprising air may be used. Air has the advantage of being easily compressible, abundant and a lack of toxicity.

[0104] Depending on the application, the support device (e.g. the mattress) may have one gas chamber or more than one gas chamber. As an example, in some embodiments, the pneumatic layer comprises a first gas chamber arranged in the head segment, and a second gas chamber arranged in the torso segment of the mattress. However, it is also possible to have a single gas chamber for all segments of the mattress, or three or even further gas chambers for each segment of the mattress.

[0105] In some embodiments, the pneumatic layer comprises the first gas chamber arranged in the head segment of the mattress and the second gas chamber arranged in the torso segment of the mattress, wherein the first and second gas chamber are pneumatically separated from each other.

[0106] In the following, preferred embodiments of the one or more gas chambers will be described. It is understood that these embodiments generally refer to all gas chambers, where more than one gas chamber is present, unless specified otherwise or unless the context clearly dictates otherwise.

[0107] In some embodiments, each of the one or more gas chambers comprises a plurality of at least two gas cells fluidically interconnected with each other. As outlined above, the gas cells may e.g. be air cells. One advantage of using at least two gas cells is that the arrangement and configuration of the individual gas cells may be used to control the shape of the overall gas chamber with more control. For example, if four gas cells arranged parallel to each other and behind each other form the gas chamber, then the gas chamber will have a controlled shape once inflated. Furthermore, using at least two gas cells allows to distribute the pressure more evenly.P28983PC00 14.01.2026

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[0109] The gas cells of a given gas chamber are fluidically interconnected with each other. Thus, it is understood that the gas (e.g. air) with which the gas chamber is inflated is able to flow into each gas cell of the gas chamber.

[0110] Depending on the application, the gas cells may have different configurations, arrangements and shapes, e.g. to influence the overall shape of the respective gas chamber. For example, in some embodiments, the gas cells of each gas chamber are arranged behind each other in a longitudinal direction of the support device. This arrangement is advantageous because it allows to easily accommodate the different needs resulting from different loads in the head, torso and leg segment. For example, it could be desirable to provide air cells having a smaller extension in longitudinal direction in the torso segment due to the comparatively high loads in the torso region, and to provide larger air cells in the head or leg segment which are exposed to smaller loads. Thus, more generally, arranging the gas cells behind each other in longitudinal direction of the support device allows to easily generate different firmness profiles in different longitudinal segments of the support device.

[0111] Different means may be used to separate the gas cells from each other (while of course still leaving a fluidic interconnection between the gas cells of a given gas chamber). For example, in some embodiments, each gas cell is separated from each adjacent gas cell by a cell wall. One advantage of the cell wall is that the cell wall can be used to carefully control the three-dimensional shape of the gas chamber. In particular, an even surface can be ensured. In further embodiments, it is also conceivable to use strings interconnecting opposite inner surfaces of the gas chamber. Such strings may also act as shape-securing bridges.

[0112] Depending on the application, the cell wall may be deformable, or it may be essentially un-deformable. For example, the cell way may be deformable in a direction essentially orthogonal to a plane of extension of the cell wall. In combination or as an alternative, the cell wall can also be compressible in transverse direction of the support device, or the cell wall can be essentially uncompressible in transverse direction. Using a cell wall that is compressible in transverse direction may be desirable to reduce the volume of the support device in a deflated state, thereby e.g. facilitating transport and potentially enabling the support device to be folded together to further reduce its size. Furthermore, by providing cell walls which are compressible in transverse direction may make the cells walls essentially unnoticeable to a user and may instead convey the feeling of a smooth support. Additionally, depending on the degree of compressibility, the compressibility may also create a dampening or cushioningP28983PC00 14.01.2026

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[0114] effect and thereby allow for a controlled degree of cushioning. By contrast, using a cell wall that is essentially uncompressible in transverse direction may be desirable for applications in which a rather firm support device is desirable. Furthermore, using essentially uncompressible cell walls also make the support device more rigid, thereby allowing more control over its three-dimensional shape in the inflated state.

[0115] Irrespective of whether the cell wall is compressible or deformable, the cell walls may have different arrangements and shapes. In some embodiments, each cell wall interconnects two in transverse direction oppositely arranged inner surfaces of the respective gas chamber. Thus, the cell walls may e.g. be used to determine a height of the gas cell in transverse direction in the inflated state.

[0116] In typical embodiments, each cell wall extends in lateral direction of the support device. These embodiments are advantageous to provide a controlled and stable three-dimensional shape of the gas chamber in the inflated state. In particular, using cell walls that extend in lateral direction may be useful to minimize lateral displacement of an upper wall of the gas chamber with respect to a lower wall of the gas chamber.

[0117] Depending on the application, the cell walls may have different extensions in lateral direction. For example, in some embodiment, each cell wall has an extension in lateral direction of at least 10%, preferably at least 20%, more preferably at least 30%, of the width in lateral direction of the support device.

[0118] The gas cells of each gas chamber are fluidically interconnected with each other. Depending on the application, this fluidic interconnection may be realized in different ways. In some embodiments, the gas cells of each gas chamber are fluidically interconnected with each other by a first passageway extending in longitudinal direction and being arranged on a first lateral side of the cell walls. Alternatively or in combination with these embodiments, the gas cells of each gas chamber may be fluidically interconnected with each other by a second passageway extending in longitudinal direction and being arranged on a second lateral side of the cell walls opposite the first lateral side.

[0119] Using first and / or second passageways to fluidically interconnect the gas cells of each gas chamber is particularly advantageous because it allows an efficient pressure equalization between the gas cells. Furthermore, because the passageways are arranged on a lateralP28983PC00 14.01.2026

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[0121] side of the cell walls, the pressure equalization is effected in a lateral section, such that the sensation for a user lying on a more central section of the support device (e.g. the mattress) is essentially unchanged or changes smoothly, thereby increasing the support device’s comfort. For these reasons, it is particularly advantageous for the first passageway to contact a first lateral wall of the respective gas chamber, wherein this first lateral wall of the respective gas chamber may e.g. face a first lateral side of the support device. Alternatively or in combination, it may be particularly advantageous for the second passageway to contact a second lateral wall of the respective gas chamber, wherein this second lateral wall of the respective gas chamber may e.g. face a second lateral side of the support device.

[0122] Depending on the application, it may be advantageous to separate adjacent gas cells from each other by way of separating seams. The separating seam may for example comprise or be a weld seam and / or a glue seam. The separating seams are called “separating” because they serve to separate adjacent gas cells. Furthermore, the additional specification “separating” serves to terminologically distinguish these seams from the circumferential seems previously discussed.

[0123] The use of separating seams facilitates manufacturing of the gas cells. Thus, in some embodiments, each gas cell is separated from each adjacent gas cell by a separating seam. Thus, the support device may comprise one or more separating seams, wherein each gas cell is separated from each adjacent by a separating seam of said one or more separating seams. Each of said one or more separating seams preferably extends in a lateral direction of the support device. Alternatively or in combination, each of said one or more separating seam is preferably essentially linear.

[0124] Each of said one or more separating seams may for example comprise or be a weld seam and / or a glue seam.

[0125] Preferably, the first foil sheet and the second foil sheet contact each other at the one or more separating seams, and are connected to each other by the one or more separating seams. In other words, the one or more separating seams may be formed by materially bonding together (e.g. welding together or gluing together) the first foil sheet and the second foil sheet.P28983PC00 14.01.2026

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[0127] One advantage of separating adjacent gas cells by a separating seam is easier manufacturability as this design essentially only involves a 2D material bonding process (e.g. a 2D welding or gluing process) rather than a more complex 3D arrangement. A further advantage is that only little material is needed to separate the cell walls, thereby reducing waste.

[0128] In some embodiments, the one or more separating seams each comprise at least one gap establishing a fluidic interconnection between the adjacent gas cells separated by the respective separating seam. Preferably, each separating seam comprises at least two gaps, e.g. from two gaps to 20 gaps.

[0129] In those embodiments in which the one or more separating seams each comprise at least two gaps, these at least two gaps are preferably regularly interspaced from each other in lateral direction.

[0130] The incorporation of those gaps between the individual cells creates favorable pressure equalization dynamics: pressure equalization is possible so as to provide a balanced firmness and to avoid local overloads, but the process of pressure equalization has a certain latency and does not occur too quickly which would create an undesirable feeling of “wobbliness”. Incorporating gaps also makes it easy to fine-tune the system to user-specific needs, e.g. simply by varying the width, number or placement of the gaps.

[0131] The at least one gap (of each of the one or more separating seams) may for example have a width of at least 1 mm, preferably at least 5 mm, e.g. from 5 mm to 100 mm, particularly from 5 mm to 50 mm. These dimensions were found to be advantageous for efficient but not overly rapid pressure equalization, so as to allow for pressure equalization over time while still avoiding a wobbling feeling that would result from immediate pressure equalization.

[0132] Preferably, the at least one gap (of each of the one or more separating seams) forms a slit. The slit preferably extends parallel to the lateral direction of the support device.

[0133] The at least two gas cells are fluidically interconnected with each other. Said fluidic interconnection is preferably established by the at least one gap of the separating seam, as described above. It is particularly advantageous for the fluidic interconnection to be established exclusively by said at least one gap. By providing the fluidic interconnection exclusively (i.e. only)P28983PC00 14.01.2026

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[0135] by said at least one gap, the dimension, shape and properties of the gap can be used to control the pressure equalization dynamics in an efficient and easy manner. By contrast, if the fluidic interconnection was also established by way of an additional hole or passageway, the pressure dynamics would be more difficult to fine-tune. Accordingly, in some embodiments, each gas cell is separated from each adjacent gas cell by a separating seam comprising at least one gap, wherein said at least one gap exclusively forms the fluidic interconnection between the two respective adjacent gas cells.

[0136] Depending on the application, the gas chamber or gas chambers may be manufactured in different ways. In some embodiments, each gas chamber is made of a single piece. In further embodiments, each gas chamber is made of at least two pieces which may e.g. be materially bonded (e.g. welded or glued) or otherwise connected to each other. In some embodiments, each gas chamber comprises a base tray facing the base side of the support device, and an oppositely arranged top tray facing the support side of the support device. The base tray and the top tray may be connected to each other, preferably welded to each other. For example, in some embodiments, the base tray and the top tray may each have an opening rim defining an opening of the respective tray, and the opening rim of the top tray and the opening rim of the base tray may be connected to each other (preferably welded to each other), thereby defining the respective closed gas chamber.

[0137] Alternatively or in combination, the base tray and the top tray may be connected to each other along a circumferential rim of the support device extending peripherally away from the inner volume of the gas chamber. For example, the opening rim of the top tray and the opening rim of the base tray may form a circumferential rim of the gas chamber extending peripherally away from the inner volume of the gas chamber.

[0138] In some embodiments, each gas chamber comprises a circumferential rim along which a base tray of the respective gas chamber is connected to (preferably welded to) a corresponding top tray of the respective gas chamber.

[0139] Using a base tray and a top tray to provide the gas chamber is advantageous because it facilitates manufacturing. Manufacturing may be even further facilitated by using symmetrical trays, which allows that only a single piece needs to be manufactured. Thus, in some embodiments, the base tray and the top tray are axially symmetrical and / or mirror symmetrical with respect to each other.P28983PC00 14.01.2026

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[0141] Depending on the application, different gas pressures may be used in the gas chamber. For example, the gas (e.g. air) may be pumped at a pressure from 1 mbar to 65 mbar with a flow rate of 20 liters per minute.

[0142] Depending on the application, the gas chamber may have different surface profiles and / or different shapes. In some embodiments, each gas chamber has a wave-shaped top surface in a cross section orthogonal to the lateral direction, wherein the top surface of each gas chamber faces the support side of the support device.

[0143] In some embodiments, the pneumatic layer is configured such that when the one or more gas chambers are inflated, each gas cell forms a support bulge extending outwardly towards the support side of the support device in a cross-section orthogonal to the lateral direction. The plurality of support bulges may e.g. form the wave-shaped top surface of the respective gas chamber.

[0144] Depending on the application, the support bulges may have different extensions. In some embodiments, each support bulge extends in the lateral direction, e.g. for at least 50 mm, preferably for at least 100 mm. Alternatively or in combination, in some embodiments, each support bulge extends across at least 5%, preferably at least 10%, more preferably at least 20%, e.g. at least 30%, of a width of the support device in lateral direction.

[0145] Depending on the application, the support bulges may have different shapes. In a typical embodiment, each support bulge is convex in cross-section orthogonal to the lateral direction.

[0146] Further Embodiments and Support Device Assembly

[0147] In some embodiments, the support device further comprises one or more pockets, e.g. for receiving mobile phones or other devices, and / or for receiving other components of the support device assembly such as electronic components. The one or more pockets may e.g. be arranged on an outer surface of the support device, preferably on the support side of the support device and / or on a circumferential side of the support device.

[0148] One advantage of providing such pockets is that the pockets may be easily provided during manufacturing and may later be filled with electronic components or other components afterP28983PC00 14.01.2026

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[0150] manufacturing. This is advantageous because electronic components such as sensors may otherwise be damaged during manufacturing, e.g. in cases where manufacturing involves welding.

[0151] Thus, in some embodiments, the support device comprises at least one sensor pocket. The sensor pocket may e.g. be arranged in the torso segment of the mattress. For example, the sensor pocket may be arranged in a longitudinal position of the mattress where normally the heart of a user is arranged when the user is lying down on the mattress. This may be advantageous to allow measurement of certain biosignals of a user such as heart rate. In some embodiments, the sensor pocket extends in lateral direction across at least 10%, preferably at least 20%, e.g. at least 30%, of a width of the support device in lateral direction. In some embodiments, the sensor pocket may even extend across essentially the full width of the support device. This could be advantageous to allow measuring the biosignals reliably, without relying on the user adopting certain sleeping positions. Irrespective of the exact position or width of the sensor pocket, in some embodiments, the sensor pocket is essentially stripe shaped. For example, the stripe-shaped sensor pocket may overlap with one of the one or more cell walls in a cross-section parallel to the longitudinal direction and to the lateral direction.

[0152] In some embodiments, the support device comprises a frame circumferentially surrounding the pneumatic layer. The frame typically comprises a circumferential side wall and may optionally further comprise a base surface, thereby forming a tray for receiving the pneumatic layer. The frame may e.g. be made of foam, e.g. polyurethane foam.

[0153] In preferred embodiments, the support device (e.g. the mattress) further comprises an encasement. The encasement may for example be an outer cover. The encasement has different advantages over conventional support devices (e.g. mattresses). For example, the encasement may provide structural integrity and / or structural rigidity to the support device. In particular, the encasement may define the relative positioning of the temperature control layer and the pneumatic layer. This in turn leads to enhanced user comfort because the encasement minimizes or even inhibits relative movement of the temperature control layer and the pneumatic layer. Thus, the use of an encasement is markedly different from e.g. placing pads on top of a mattress because doing so may lead to the pad slipping on the mattress, which leads to an undesirable feeling of a lack of positional control for a user, and an undesirable feeling of wobbliness.P28983PC00 14.01.2026

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[0155] Furthermore, the encasement may also serve as protection for the temperature control layer and the pneumatic layer. A further advantage over conventional support devices is that the support device comprising the encasement may provide a single piece that includes both temperature and firmness control.

[0156] It is noted that the encasement is different from a bedsheet, and a bedsheet is not an example of an encasement. The encasement is typically an integral part of the support device (e.g. the mattress) itself. For example, the encasement may define an outer surface of the support device (e.g. of the mattress). Typically, the encasement defines the entire outer surface of the support device. In other words, the entire outer surface of the support device may be formed by the encasement.

[0157] In preferred embodiments, the encasement fully encloses the support device. In particular, the encasement typically fully encloses the temperature control layer and the pneumatic layer.

[0158] The encasement may thus also be labelled as an outer cover of the support device.

[0159] Depending on the application, different encasements may be used. Preferably, the encasement is made of a textile. Irrespective of the material, in some embodiments, the encasement is zippable. This is advantageous to allow replacement of the encasement or to facilitate access to the inside of the encasement, e.g. for maintenance of the temperature control layer or the pneumatic layer.

[0160] Preferably, the temperature control layer and the pneumatic layer are arranged inside the encasement. This arrangement is particularly advantageous because it secures the relative position of the temperature control layer and the pneumatic control layer, and thereby minimizes the risk of relative movement of the temperature control layer, which would give an undesirable wobbling feeling for a user.

[0161] In those embodiments in which the support device comprises further components (e.g. a base tray and / or a top tray and / or a frame), these further components (i.e. e.g. the base tray and / or the top tray and / or the frame) are preferably also arranged inside the encasement.P28983PC00 14.01.2026

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[0163] Preferably, the encasement has a thickness of at least 1 mm, preferably at least 3 mm.

[0164] A second aspect of the present disclosure relates to a support device assembly comprising the support device according to any one of the embodiments of the support device of the first aspect described herein.

[0165] Depending on the application, the support device assembly may comprise one or more further components.

[0166] In some embodiments, the support device assembly may comprise an inflation system configured to be operably interconnected with the pneumatic layer and configured for controlling a pneumatic pressure inside the one or more inflatable gas chambers. Depending on the application, the inflation system may e.g. be arranged inside or outside the frame.

[0167] Alternatively or in combination, the support device assembly may comprise a liquid pump configured to be operably connected to the temperature layer and configured to circulate the temperature-regulating liquid, preferably water, having a target temperature through the receptacle. Depending on the application, the liquid pump may e.g. be arranged inside or outside the frame.

[0168] Alternatively or in combination, the support device assembly may comprise a control unit configured for adjusting the pneumatic pressure inside the one or more gas chambers; and / or for adjusting the target temperature. Depending on the application, the control unit may e.g. be arranged inside or outside the frame.

[0169] The present disclosure (hereinbefore and hereinafter) is discussed in the context of different aspects and embodiments to facilitate understanding of the disclosure. However, the present document is to be understood as a unified disclosure. In particular, although some embodiments are discussed in the context of a particular aspect, they are nevertheless to be understood generally as embodiments of the present disclosure and, as such, generally also extend to and apply to other aspects of the present disclosure, unless it is clearly specified otherwise or unless the context dictates otherwise. For example, embodiments discussed in the context of the first aspect are also embodiments of the second aspect (among other aspects), unless it is clearly specified otherwise or unless the context dictates otherwise.P28983PC00 14.01.2026

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[0171] Similarly, embodiments discussed in the context of the second aspect are also embodiments of the first aspect, unless it is clearly specified otherwise or unless the context dictates otherwise.

[0172] It is to be understood that both the foregoing general description and the following detailed description present embodiments and are intended to provide an overview or framework for understanding the nature and character of the disclosure. In the description, reference is made to the accompanying drawings, which form a part hereof and in which there is shown by way of illustration, not limitation, embodiments of the disclosure. The description of preferred embodiments is not intended to limit the disclosure to cover all modifications, equivalents and alternatives. Reference should therefore be made to the claims recited herein for interpreting the scope of the disclosure.

[0173] BRIEF DESCRIPTION OF THE DRAWINGS

[0174] The present disclosure will be more fully understood from the detailed description given herein below and the accompanying drawings, which should not be considered limiting to the disclosure described in the appended claims.

[0175] Fig. 1 Shows an embodiment of a mattress in perspective view;

[0176] Fig. 2 Shows the embodiment of the mattress of Fig. 1, wherein one of the mattress halves is shown in an exploded view;

[0177] Fig. 3 Shows the embodiment of the mattress of Fig. 1 , wherein a portion of the mattress is shown in a cut-out view;

[0178] Fig. 4 Shows an enlarged excerpt of the section shown in cut-out view in Fig. 3

[0179] Fig. 5 Shows an embodiment of a pneumatic layer in perspective view;

[0180] Fig. 6 Shows the embodiment of the pneumatic layer of Fig. 5, wherein one of the mattress halves is shown in an open state;P28983PC00 14.01.2026

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[0182] Fig. 7 Shows an embodiment of the temperature control layer in perspective view;

[0183] Fig. 8 Shows an embodiment of a temperature control layer with a meandering fluid flow path;

[0184] Fig. 9 Shows an embodiment of a mattress assembly;

[0185] Fig. 10 Show a further embodiment of the pneumatic layer.

[0186] DETAILED DESCRIPTION

[0187] Reference will now be made in detail to certain embodiments, examples of which are illustrated in the accompanying drawings, in which some, but not all features are shown. Indeed, embodiments disclosed herein may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Whenever possible, like reference numbers will be used to refer to like components or parts.

[0188] Figures 1 to 7 show an embodiment of the mattress 1 described herein in perspective view. More specifically, Figures 1 to 4 show the entire mattress 1 , which comprises a pneumatic layer 4 and a temperature control layer 2, whereas Figures 5 and 6 only show the pneumatic layer 4 and Figure 7 only shows the temperature control layer 2. Out of Figures 1 to 4, Fig.

[0189] 1 shows the entire mattress in a final, assembled state, while Fig. 2 shows one half of the mattress in an exploded view, Fig. 3 shows a cut-out view of the mattress and Fig. 4 shows an enlarged excerpt of a part of the mattress shown in Fig. 3. Out of Figures 5 and 6, Fig. 5 shows the pneumatic layer 4 in a closed, assembled state, while Fig.6 shows the pneumatic layer 4 in an open state to illustrate its inner structure in further detail. Finally, Fig. 7 shows the temperature control layer in perspective view.

[0190] The mattress and its components are illustrated in the figures with respect to a coordination system in which the x-axis corresponds to a longitudinal direction, the y-axis corresponds to a lateral direction and the z-axis corresponds to a transverse direction.P28983PC00 14.01.2026

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[0192] The figures illustrate an embodiment of a double mattress for a double bed. It essentially consists of two separate mattresses 1 which are arranged side-by-side. The two mattresses 1 may be connected to each other, as illustrated in the Figures, or they may be disconnected from each other (not shown). Each individual mattress 1 may be adjusted to the individual needs of the user, thereby allowing e.g. a couple lying in a double bed to choose individual mattress settings for each person.

[0193] Each mattress 1 has a support side 11 on which the user rests, and an oppositely arranged base side 12 on which the mattress contacts a mattress support frame (not shown). Further, each mattress 1 comprises a temperature control layer 2 and a pneumatic layer 4. The temperature control layer 2 faces the support side 11 and, more specifically, an upper surface of the temperature control layer 2 defines the support side 11 , thereby allowing the temperature set by the temperature control layer to be directly conducted to any felt by a user. To set the temperature, the temperature control layer 2 comprises a bladder as a receptacle 3 which contains a temperature-regulating liquid, as will be described in further detail in the context of Fig. 7 below.

[0194] To adjust the firmness of the mattress 1, the mattress 1 comprises the pneumatic layer 4, which is arranged further towards the base side 12 than the temperature control layer 2. The pneumatic layer 4 comprises one or more gas chambers 51 , 52 each containing a pressurized gas such as air, where the pressure of the gas can be used to adjust the firmness. More specifically, each of the mattresses 1 illustrated in Figures 1-4 comprises one gas chamber 51, whereas Figures 5-6 illustrate a slightly different variant in which each mattress 1 comprises two gas chambers 51 , 52. The details of the gas chambers 51 , 52 and its inner structure will be described in further detail in the context of Figures 5-6 below. Although the discussion that will follow further below primarily relates to Figures 5-6, it also applies mutatis mutandis to the embodiments shown in Figures 1-4, with the exception that the mattresses 1 of Figures 1-4 each comprise only a single gas chamber, as mentioned above.

[0195] As illustrated in Figures 1-4, and in particular in the exploded view in Fig. 2, the temperature control layer 4 rests directly on the pneumatic layer 4. More specifically, a bottom surface of the temperature control layer 2 facing the base side of the mattress 12 contacts a top surface of the pneumatic layer 4 facing the support side of the mattress 11. By contacting each other, the temperature control layer 4 and the pneumatic layer 4 pressure-communicate with each other, which ensures that the firmness of the pneumatic layer 4 is efficiently transportedP28983PC00 14.01.2026

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[0197] through the temperature control layer 2 and further towards the support side 11 of the mattress 1 , ultimately allowing the firmness to be felt more directly on the support side with only minimal to no distortions in the firmness sensation due to the bladder that is arranged between the pneumatic layer and the support side of the mattress. A further advantage is that immersion or sinking of the temperature control layer 2 into the pneumatic layer 4, which may otherwise not occur if the two layers were interspaced by an additional comfort layer, is maximized. Thereby, the full range of firmness can be carried to the support surface more directly.

[0198] In the illustrated embodiments, the temperature control layer 2 is releasably connected to the pneumatic layer 4 by way of Velcro connections. More specifically, the temperature control layer 2 comprises a first set of Velcro elements arranged on a lower side of the temperature control layer 2 facing the pneumatic layer 4 (not illustrated), and the pneumatic layer 4 comprises a second set of Velcro elements 111 arranged on an upper side of the pneumatic layer 4. Each Velcro element of the first set is arranged and configured such that it rests on and is connected to a corresponding Velcro element of the second set of Velcro elements. Thus, the Velcro elements prevent relative displacement of the temperature control layer 2 with respect to the pneumatic layer 4 in the longitudinal or lateral direction.

[0199] While the embodiment illustrated in Fig. 2 features Velcro elements for releasably connecting the temperature control layer 2 to the pneumatic layer 4, it is noted that such Velcro elements are not obligatory. Other embodiments (not illustrated in Fig. 2) are substantially identical to the embodiment shown in Fig. 2 except that they do not comprise any such Velcro elements.

[0200] The illustrated mattresses 1 each comprise a head segment 13, a torso segment 14 and a leg segment 15. In the embodiment illustrated in Figures 1-4, the mattress 1 comprises a single gas chamber 51 which encompasses all three segments 13, 14, 15, whereas in the embodiment illustrated in Figures 5-6, the mattress 1 comprises a first gas chamber 51 arranged in the head segment 13 and a second gas chamber 52 arranged in the torso segment 14 and in the leg segment 15.

[0201] The illustrated mattresses 1 are formed by melting together three foil sheets 7. Depending on the application, they can be melted together in different orders. For example, in at least some variants, a third foil sheet 73 may be welded onto a second foil sheet 72, e.g. circumferentially and with a pattern. Subsequently, a first foil sheet 71 may be welded to the second foil sheet 72, preferably initially through the cell walls, and then also circumferentially. OtherP28983PC00 14.01.2026

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[0203] welding orders may also be used. Irrespective of the order in which the sheets are welded together, the second foil sheet 72 essentially forms a deformable wall which separates an inner volume of the temperature control layer 2 and an inner volume of the gas chamber(s) of the pneumatic layer 4. By being deformable, the inner volumes pressure-communicate with each other, which facilitates the flow of water (or any other temperature-regulating liquid) through the bladder and decreases the risk of local flow barriers due to local overpressures.

[0204] Furthermore, as illustrated in Figures 1 -4 and 7, the mattress may comprise a sensor pocket 121 . The sensor pocket is configured to receive electronic components such as sensors, e.g. heart rate sensor. It allows the electronic components to be inserted into the pocket after manufacturing, which ensures that the electronic components, which may be sensible, are not damaged during manufacturing. The sensor pocket 121 is advantageously arranged in the torso segment of the mattress, thereby allowing certain signals such as heart rate to be measured. In the illustrated variant, the sensor pocket 121 also extends across essentially the entire width of the mattress and is essentially stripe shaped.

[0205] Figures 5-6 illustrate in further detail the pneumatic layer 4 of an embodiment of a mattress 1 which comprises two gas chambers 51 , 52. Each gas chamber 51 , 52 comprises a plurality of gas cells 54, 55 which are separated from each other by cell walls 56, 57 which extend essentially in lateral and in transverse direction. Further, each cell wall 56, 57 extends from a lower inner surface of the respective gas chamber to an opposite upper inner surface of the respective gas chamber, thereby defining a shape of the gas chamber in the inflated state and defining in particular a height of the gas chamber in transverse direction. Furthermore, in the inflated state, an upper face of each gas chambers has a wave-shaped profile. More specifically, the cell walls 56, 57 of each gas chamber 54, 52 define valleys of the waveshaped profile. Between two adjacent valleys, a support bulge 9 extends towards the support side of the mattress, which has a convex shape and forms a cushion for the user. Furthermore, the gas cells 54, 55 are fl uidically interconnected with each other by a first passageway 58 and a second passageway 59 arranged on opposite lateral sides of the cells walls 56, 57. By fluidically interconnecting the gas cells 54, 55 of each gas chamber with each other, local overpressures or overloads are avoided and a uniform and well-defined shape of the gas chamber is ensured.

[0206] Each gas chamber 51 , 52 is constructed from a base tray 81 (formed by the first foil sheet 71 ) and a top tray 82 (formed by the second foil sheet 72). The base tray 81 and the top trayP28983PC00 14.01.2026

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[0208] 82 are then interconnected with each other by circumferential welding of corresponding rims, thereby defining an enclosed inner volume of the respective gas chamber. Furthermore, each gas chamber comprises a gas valve 53 to control inflow or outflow of gas into or out of the gas chamber, thereby controlling the pressure and, ultimately, the firmness of the mattress 1.

[0209] Figure 7 illustrates in further detail a temperature control layer 2 of an embodiment of a mattress 1. The temperature control layer 2 comprises a receptacle 3 in the form of a bladder comprising a plurality of channels arranged in longitudinal direction behind each other, including a first channel 31 and a second channel 32. The channels 31 , 32 are separated from each other by a welding lane forming a border line 36. In the assembled state (not shown), this borderline is aligned with the cells walls of pneumatic layer (when viewed in a crosssection orthogonal to the transverse direction). This alignment ensures an optimal pressurecommunication between the inner volume of the receptacle 3 and the inner volume(s) of the gas chamber(s) 51 , 52.

[0210] Furthermore, the different channels 31 , 32 of the receptacle 3 are fluidically interconnected with each other and together define a liquid flow path 33 extending from a liquid inlet 34 to a liquid outlet 35 of the receptacle 3. The liquid inlet 34 and the liquid outlet 35 are arranged on opposite sides in longitudinal direction of the mattress 1.

[0211] Figure 8 illustrates a further embodiment of a temperature control layer 2 with a meandering fluid flow path 33. More specifically, the welding lanes forming the border lines 36 that separate two neighboring channels are arranged such that they define the meandering flow path. One advantage of the meandering flow path is that a homogeneous temperature distribution across the support side of the mattress is achieved and strong local temperature gradients are minimized, as explained above. Furthermore, the meandering flow path contributes to allowing efficient progressive heating along the longitudinal direction of the mattress.

[0212] Figure 9 schematically illustrates an embodiment of a mattress assembly 10 which comprises a mattress 1 , e.g. the embodiment of the mattress 1 described in any of the previous figures. The mattress 1 comprises a temperature control layer 2 and a pneumatic layer 4. The mattress assembly 10 further comprises a tray-shaped frame 20 for providing structural support to the mattress 1. More specifically, the pneumatic layer 4 rests inside a cavity formed by the tray-shaped frame 20. The mattress assembly 10 also comprises an inflation systemP28983PC00 14.01.2026

[0213] 32 / 39

[0214] 102 fluidically interconnected with the gas valve (not shown) of the gas chamber of the pneumatic layer, thereby allowing the gas chamber to be filled with a gas (e.g. air) and pressurized, thereby setting the firmness of the mattress 1 . Furthermore, the mattress assembly 10 comprises a liquid pump 103 fluidically interconnected with a liquid inlet 34 of the receptacle (not illustrated), thereby allowing the receptacle to be filled with a temperature-regulating liquid such as water which has a certain temperature. Depending on the application, the liquid outlet (not illustrated) through which the temperature-regulating liquid flows out of the receptacle 3 may also be interconnected to the liquid pump 103, preferably forming a closed liquid circulation system, or the liquid outlet may be connected to a liquid drain. Furthermore, the mattress assembly 10 comprises a control unit 104 configured for setting a gas pressure of the pneumatic layer, and configured for setting a temperature of the temperature control layer 2.

[0215] Finally, the mattress assembly 10 may optionally also comprise a comfort layer 22 arranged on top of the temperature control layer, which allows for a comfortable contact for the user. Irrespective of whether or not the mattress assembly comprises this optional comfort layer 22, the assembly may or may not comprise an encasement 21 (e.g. in the form of an outer cover as illustrated), which may e.g. be made of a textile. The encasement 21 may enclose the remaining parts of the mattress assembly, in particular the mattress 1 .

[0216] In the embodiment shown in Fig. 9, the inflation system 12, the control unit 104 and the liquid pump 103 are illustrated, by way of example, as being arranged outside the frame 20. Optionally, one or more of these components may also be arranged inside the frame 20. In some embodiments, the inflation system 102, the liquid pump 103 and the control unit 104 are all arranged inside the frame 20.

[0217] Figures 10A-10C illustrate an embodiment of the pneumatic layer. The embodiment is shown in perspective view (Fig. 10A), in a cross-sectional view along the longitudinal and the lateral direction (Fig. 10B) and in a cross-sectional view orthogonal to the lateral direction (Fig. 10C). The illustrated pneumatic layer 4 comprises a first gas chamber 51 formed by a first foil sheet 71 and a second foil sheet 72 circumferentially welded to the first foil sheet 71.

[0218] The first gas chamber 51 comprises a plurality of gas chambers 54, 55. The gas chamber 54, 55 are arranged behind each other in the longitudinal direction, and each two adjacent gas chambers 54, 55 are separated from each other by a separating seam 501 , which in theP28983PC00 14.01.2026

[0219] 33 / 39

[0220] illustrated embodiment is realized by an essentially linear weld seam. Said essentially linear weld seam comprises gaps 502 which establish a fluidic interconnection between the two adjacent gas chambers 54, 55. More specifically, in the illustrated embodiment, the fluidic interconnection is established only by said gaps 502. Once inflated, the gas cells 54, 55 are essentially round in a cross-section orthogonal to the lateral direction (cf. Fig. 10C).

[0221] Furthermore, as shown in Fig. 10B, the two lateral sides of the gas chambers are each formed by an arc-shaped weld seam 503. The arc-shaped weld seam 503 extends between two adjacent essentially linear weld seams 501.P28983PC00 14.01.2026

[0222] 34 / 39

[0223] LIST OF DESIGNATIONS

[0224] 1 Support device, e.g. mat- 501 Separating seam tress 502 Gap

[0225] 11 Support side of mattress 503 Arc-shaped weld seam 12 Base side of mattress 6 Deformable separation 13 Head segment wall

[0226] 14 Torso segment 7 Foil sheets

[0227] 15 Leg segment 71 First foil sheet

[0228] 2 Temperature control layer 72 Second foil sheet

[0229] 3 Receptacle 73 Third foil sheet

[0230] 31 First channel 81 Base tray

[0231] 32 Second channel 82 Top tray

[0232] 33 Liquid flow path 9 Support bulge

[0233] 34 Liquid inlet 10 Mattress assembly 35 Liquid outlet 102 Inflation system

[0234] 36 Border area 103 Liquid pump

[0235] 4 Pneumatic layer 104 Control unit

[0236] 51 First gas chamber 111 Velcro ele- 52 Second gas chamber ments

[0237] 53 Gas valve 121 Sensor pocket

[0238] 54, 55 Gas cells 20 Frame

[0239] 56, 57 Cell walls 21 Encasement

[0240] 58 First passageway 22 Comfort layer

[0241] 59 Second passageway

Claims

P28983PC00 14.01.202635 / 39PATENT CLAIMS1 . Support device (1), preferably selected from a mattress, a pillow, a neck cushion or a seat cushion, wherein the support device (1 ) has a support side (11 ) and an oppositely arranged base side (12), wherein the support device (1) comprises:a. A temperature control layer (2) facing the support side (11) and configured for controlling a contact temperature on the support side (11) of the support device (1), wherein the temperature control layer (2) comprises at least one receptacle (3) for containing a temperature-regulating liquid; andb. A pneumatic layer (4) arranged between the temperature control layer (2) and the base side (12) and configured for controlling a firmness of the support device (1 ), wherein the pneumatic layer (4) comprises one or more gas chambers (51 , 52).

2. The support device (1 ) according to claim 1 , further comprising an encasement (21 ) inside which the temperature control layer (2) and the pneumatic layer (4) are arranged.

3. The support device (1) according to any one of the previous claims, wherein the receptacle (3) comprises a bladder.

4. The support device (1 ) according to any one of the previous claims, wherein an inner volume of the at least one receptacle (3) is separated from an inner volume of at least one of the one or more gas chambers (51 , 52) by a deformable separation wall (6), thereby establishing a pressure communication between the receptacle (3) and the gas chamber (51 , 52).

5. The support device (1 ) according to any one of the previous claims, wherein the temperature control layer (2) and the pneumatic layer (4) are interconnected with each other in a non-cushioning manner.P28983PC00 14.01.202636 / 396. The support device (1) according to any one of the previous claims, wherein at least one gas chamber (51 , 52) of the pneumatic layer (4) is formed by a first foil sheet (71 ) and a second foil sheet (72) circumferentially welded to the first foil sheet (71 ).

7. The support device (1 ) according to claim 6, wherein the temperature control layer (2) is formed by the second foil sheet (72) and a third foil sheet (73) circumferentially welded to the second foil sheet (72).

8. The support device (1 ) according to any one of the previous claims, wherein the temperature control layer (2) and the pneumatic layer (4) are materially bonded to each other, preferably welded or glued to each other.

9. The support device (1) according to any one of the previous claims, wherein each of the one or more gas chambers (51 , 52) comprises a plurality of at least two gas cells (54, 55) fluidically interconnected with each other, wherein the gas cells (54, 55) of each gas chamber (51 , 52) are preferably arranged behind each other in a longitudinal direction of the support device (1 ).

10. The support device (1 ) according to claim 9, wherein each gas cell (54, 55) is separated from each adjacent gas cell (54, 55) by a cell wall (56, 57), wherein said cell wall (56, 57) preferably extends in a lateral direction of the support device (1).

11. The support device (1 ) according to claim 9, wherein each gas cell (54, 55) is separated from each adjacent gas cell (54, 55) by a separating seam (501), wherein said separating seam (501) preferably extends in a lateral direction of the support device (1).

12. The support device (1 ) according to any one of claims 9-11 , wherein the pneumatic layer (4) is configured such that when the one or more gas chambers (51 , 52) are inflated, each gas cell (54, 55) forms a support bulge (9) extending outwardly towards the support side (11) of the support device (1) in a cross-section orthogonal to the lateral direction.P28983PC00 14.01.202637 / 3913. The support device (1 ) according to any one of the previous claims, wherein each gas chamber (51 , 52) comprises a base tray (81 ) facing the base side (12) of the support device (1 ), and an oppositely arranged top tray (82) facing the support side (11 ) of the support device (1), wherein the base tray (81) and the top tray (82) are connected to each other, preferably welded to each other.

14. The support device (1) according to any one of the previous claims, wherein the receptacle (3) comprises a plurality of at least two fluidically interconnected channels (31 , 32) which are preferably arranged behind each other in longitudinal direction of the support device (1).

15. The support device (1) according to claim 14, wherein the at least two channels (31 , 32) define a meandering liquid flow path (33) of the temperature-regulating liquid.

16. The support device (1) according to any one of claims 14-15, wherein each channel (31 , 32) is separated from each adjacent channel (31 , 32) by a border area, preferably by a border line (36), more preferably by a border line formed by a weld seam.

17. The support device (1 ) according to claims 16 and 9, wherein the border area overlaps with the cell wall (56, 57) in a cross-section parallel to the longitudinal direction and to the lateral direction.

18. Support device assembly (10) comprising the support device (1 ) according to any one of the previous claims and one or more of the following:a. A frame (101) circumferentially surrounding the support device (1);b. An inflation system (102) configured to be operably interconnected with the pneumatic layer (4) and configured for controlling a pneumatic pressure inside the one or more gas chambers (51 , 52);c. A liquid pump (103) configured to be operably connected to the temperature control layer (2) and configured to circulate the temperature-regulating liquid, preferably water, having a target temperature through the receptacle (3);P28983PC00 14.01.202638 / 39d. A control unit (104) configured for adjusting the pneumatic pressure inside the one or more gas chambers (51 , 52); and / or for adjusting the target temperature.

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