KR102520310B1 - Functional pillow with adjustable cervical vertebrae height - Google Patents

Abstract

The present invention relates to a functional pillow with an adjustable cervical vertebrae height, which provides the convenience of adjusting a height and hardness. The functional pillow comprises: a central occipital support part formed to support the center of the occipital of a user based on a user right posture, a state in which the user lies forward, and including a curve section with a height that gradually increases toward a central side; a pair of side head support parts disposed on both ends of the central occipital support part, respectively; an upper occipital support part disposed at an upper part of the central occipital support part based on a flat surface, and formed with a curve section with a height that gradually increases toward an upper side; and a cervical vertebrae support part disposed in a direction facing the upper occipital support part based on the central occipital support part to support the cervical vertebrae of the user, and including a preset cushion layer and a first air chip accommodation part which has one side formed with an open and close means to be able to charge a preset type of air chip. The cervical vertebrae support part forms a curve section to correspond to the cervical vertebrae. The highest point of the curve section is formed to be higher than the highest point of the central occipital support part.

Description

Functional pillow with adjustable cervical vertebrae height}

The present invention relates to a functional pillow capable of adjusting the height of a user's cervical vertebrae.

In general, a pillow refers to a bedding used to comfortably support the head when sleeping or lying down. In general, round pillows and long square pillows made of cloth are most widely used, and cotton, sponge, chaff, buckwheat hulls, feathers, millet, etc. are used for pillows.

When a person sleeps, the connection posture between the head, neck and shoulders becomes unnatural due to the inappropriate height of the pillow, and the posture of the sleeping person becomes unnatural, so the nape, shoulder, or waist becomes stiff, and in severe cases, the neck Herniated discs and herniated discs may develop, and blood circulation in the cervical spine is not smooth, resulting in a lack of oxygen supply to the brain, resulting in a blank head even after sleeping. There is a risk of causing

In particular, general pillows are manufactured with the greatest purpose of supporting the back of the head and cervical spine of the user when the user lies down looking at the sky, but there is a problem that the user's head and cervical spine cannot be stably supported when the user lies on the side. do. In addition, there is a problem in that a person with a bad sleeping habit may often toss and turn unconsciously, so that he or she cannot get enough sleep.

In addition, in terms of the material of the pillow, pillows made of general fiber materials or vegetable materials such as latex, synthetic resin, urethane foam, or buckwheat absorb body heat and are not well ventilated, causing dry mouth, respiratory instability, and aggravating the imbalanced cervical spine. may become

On the other hand, in general, conventionally used materials do not adequately buffer the difference in body pressure that occurs because each person has a different weight, and compresses muscles, nerves, and blood vessels, thereby causing memory loss, headache, arm numbness, and shoulder pain. . As a result, the use of the wrong pillow may cause insomnia and consequently become a factor in reducing the quality of life.

In order to solve this problem, attempts have been made to induce a good night's sleep with music, vibration, fragrance, etc., but these methods have a problem that cannot be a fundamental solution because they still do not solve the problem caused by a pillow that does not fit the body.

As the prior art, Korean Patent Registration No. 10-2158943 (customized pillow) is disclosed. The prior art discloses a user-customized pillow capable of stable and comfortable cervical support by being adjusted to the position and height of the user's cervical vertebrae, and having a plurality of compartment pockets formed so that the user can fill and use the desired filler.

However, the prior art cannot provide a filler shape optimized for supporting the cervical vertebrae, and simply discloses a structure for filling a pocket portion with a filler, so it is inevitable to depend only on the user's feeling. Therefore, this method cannot be regarded as a scientific method, and even if the user feels comfortable during sleep, it is difficult to see that this is a condition that helps the user's cervical vertebrae, so it is very difficult to secure user reliability. .

(Patent Document 1) Korean Patent Registration No. 10-2158943

(Patent Document 2) Korean Patent Registration No. 10-2016284

The present invention has been made to solve the above problems, and the present invention is to propose a functional pillow that can be naturally supported when a user turns over or corrects posture when a user lies down or lies on his side for a good night's sleep.

In addition, the present invention is to propose a structure of a functional pillow capable of semi-permanently maintaining a three-dimensional shape of the pillow while having air permeability.

One embodiment of the present invention for solving the above problems is a functional pillow capable of adjusting the height of the user's cervical spine, based on the user's custom posture in which the user is lying face down, the occipital bone formed to support the center of the occipital bone of the user. As a central supporting portion, including a curved section whose height gradually rises gradually toward the central side, the central supporting portion of the occipital bone; a pair of side head rests disposed at both ends of the central support part of the occipital bone; An upper occipital bone upper support portion disposed above the occipital bone central support portion with respect to a plane, and having a curved section gradually increasing in height toward the upper side, formed with an upper occipital bone support portion; and a cervical spine support portion formed to support a user's cervical spine by being disposed in a direction opposite to the upper portion of the occipital bone support portion with respect to the occipital bone central support portion as a reference, including a preset cushion layer and a first air chip receiving portion, wherein the 1 A cervical vertebrae support unit having an opening/closing means formed on one side of the air chip receiving unit to enable charging of a preset type of air chip; Including, the cervical support portion, but forming a curve section to correspond to the cervical spine, the highest point of the curve section is formed higher than the highest point of the occipital bone central support portion, provides a functional pillow.

The cervical spine support is formed with a lower end protruding outward by a predetermined length on the basis of a plane, and a pair of indentations are formed on both sides of the protrusion to be recessed inward, respectively, and the protrusion and the pair The indentation of may form a predetermined continuous curve.

The protruding part forms a continuous curve from one surface facing the user's cervical vertebrae to an opposite surface of the one surface, based on a vertical cross section, and the opening and closing means may be provided on one side of the opposite surface.

The protruding portion may form a curve such that a height of a highest point is higher than a height of a highest point of the indentation portion based on a vertical cross section.

The air chip has a cylindrical shape with open top and bottom surfaces and is made of polyethylene having a predetermined thickness. By adjusting the filling state of the air chip in the first air chip accommodation part, the height of the cervical spine support is can be regulated.

The occipital bone central support part further includes a second air chip accommodating part formed to surround an edge of the occipital bone central fulcrum part, and the second air chip accommodating part adjusts the charging state of the air chip, so that the area around the user's occipital bone It can be configured to change the support state.

The air chip is formed in preset first to Nth types, and the first to Nth types may have different diameters or heights, respectively.

The air chip is accommodated in a state in which a spherical gel unit is bonded to the cylindrical shape, and the gel unit may be continuously disposed in contact with each other along a height direction of the air chip.

The cervical spine support has a form in which an air chip layer, an elastic socket layer, and a cushion layer are sequentially stacked on the basis of a vertical section, and in the elastic socket layer, at least one elastic member having a predetermined elastic force is disposed in a vertical direction. And, the elastic member may be formed to be compressed when the user's cervical spine is supported.

In the elastic socket layer, the elastic member located at the center side of the plane may have a height or elastic modulus in an initial state greater than that of the elastic member located at the outer side.

The cushion layer may include (a) a fragrance unit providing a user with a preset scent; or (b) a heating unit that transfers thermal energy to the user's cervical vertebrae; It can be formed so that it can be inserted.

In the present invention, height and hardness can be adjusted using an air chip, so that height and hardness can be adjusted conveniently.

In addition, by adjusting the height and hardness of the functional pillow to suit oneself, not only does it comfortably maintain the posture that the user usually takes, but also responds to the height necessary for support, which inevitably changes when the user tosses and turns, to ensure a comfortable sleep. can help you get drunk.

1 is an overall perspective view according to a first embodiment of a functional pillow of the present invention.
2 is a plan view according to a first embodiment of the functional pillow of the present invention.
Figure 3 is a bottom view according to the first embodiment of the functional pillow of the present invention.
4 is a vertical cross-sectional view based on line AA′ of FIG. 2 .
Figure 5 (a) and (b) is a modified example of the first embodiment of the functional pillow of the present invention.
Figure 6 is a vertical cross-sectional view according to a second embodiment of the functional pillow of the present invention, showing a deformed structure of the cervical spine support.
7 shows various aspects of the air chip applied to the functional pillow of the present invention.
8 shows a modified example of an air chip applied to a functional pillow of the present invention.
9 is a vertical cross-sectional view according to a third embodiment of a functional pillow according to the present invention, showing a state in which a direction unit/heating unit is provided.
10 is a schematic diagram schematically illustrating a process in which the functional pillow of the present invention transmits pressure information to a user terminal using wireless communication.

The embodiments described in this specification and the configurations shown in the drawings are only one preferred example of the disclosed invention, and there may be various modifications that can replace the embodiments and drawings in this specification at the time of filing of the present application.

In addition, the same reference numerals or numerals presented in each drawing in this specification indicate parts or components that perform substantially the same function.

In addition, terms used in this specification are used to describe embodiments, and are not intended to limit and/or limit the disclosed invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It does not preclude in advance the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms including ordinal numbers such as “first” and “second” used herein may be used to describe various components, but the components are not limited by the terms, and the terms It is used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The term “and/or” includes any combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, terms such as "...unit", "...unit", and "...module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

Hereinafter, a functional pillow according to the present invention will be described with reference to the drawings. The part facing the user's occipital bone is defined as 'front', and the opposite side of the front is defined as 'rear'. In addition, in the present application, 'upper', 'lower', and 'both sides' are defined and described mainly based on a plane.

Referring to Figures 1 to 4, a first embodiment of the functional pillow of the present invention will be described.

Functional pillow of the present invention includes an occipital bone central support portion 110, side head support portions 130a and 130b, an occipital bone upper portion 120 and a cervical spine support portion 140.

The occipital bone central support part 110 is formed to support the center of the occipital bone of the user based on the user's custom posture in which the user is lying face down. Here, the user may lie on the front or side according to his/her preference or condition. However, in the present application, a state in which the user is lying face down, that is, a posture in which the user's face is facing upward is referred to as a 'user correct posture'.

Referring to FIG. 4 first, the occipital bone central support part 110 includes a curved section gradually increasing in height toward the center. This curved section is to provide a comfortable cushion feeling to the user's occipital bone. At this time, the highest point of the occipital bone central support portion 110 is formed relatively lower than the highest point of the cervical spine support portion 140 to be described later. This is because when the curved section of the central supporting part 110 of the occipital bone is formed at a relatively high position, it can give a strain to the cervical vertebrae formed in a C-curve. This has a problem of aggravating not only the user's neck disc, but also the turtle neck. Therefore, the curve section of the occipital bone central support part 110 needs to be formed at a relatively low height compared to the curve section of the cervical spine support part 140.

The side head rests 130a and 130b are respectively disposed at both ends of the central support part 110 of the occipital bone. Specifically, it may be composed of a right headrest portion 130b and a left headrest portion 130a. These side headrests 130a and 130b also form a predetermined curve section. It forms a curved section that gradually increases in height from the inside to the outside. Since the side headrests 130a and 130b are formed relatively higher than the occipital bone central support 110, the user's occipital bone provides comfort to be stably seated in the occipital bone central support 110, and the side head on both sides Since the support portions 130a and 130b have the effect of wrapping the user's occipital bone, even if the user turns over or moves, the position of the user's occipital bone can be prevented from being separated from the central support portion 110 of the occipital bone.

Depending on the individual user, so-called sleeping habits or movements can be very different. Therefore, preventing the position of the user's laryngeal bone from being separated from the central supporting part 110 of the laryngeal bone is very important for the user's sound sleep. Referring to Figure 2, a configuration related to this of the functional pillow according to the present invention is shown.

In order to naturally position the user's occipital bone, first to third curves 120a1, 120a2, and 120a3 are formed. The first curve 120a1 refers to the upper curve of the central support portion 110 of the occipital bone. It is a curved bar convexly formed downward, and even if the user moves up and down, the occipital bone naturally slides back to the occipital bone central support portion 110.

The second curve 120a2 may be understood as corners of both sides of the upper end of the central supporting portion 110 of the occipital bone. The second curve 120a2 also has a structure that protrudes convexly toward the center of the central supporting portion 110 of the occipital bone. This structure is also the same for the third curve 120a3.

Occipital bone upper support portion 120 is disposed on the upper portion of the occipital bone central support portion 110 relative to the plane, and a curved section is formed that gradually rises in height toward the upper side. The vertical length of the upper occipital bone support 120 may be formed relatively shorter than the vertical length of the cervical spine support 140 . This is because the length of the upper side of the occipital bone is generally shorter than that of the cervical spine.

As an exemplary material for the upper occipital bone supporting part 120 and the side head rest parts 130a and 130b, DACRON cotton and 3D cotton made of polyester may be applied. In particular, Dacron cotton is 99.9% antibacterial cotton, so it has an excellent antibacterial function.

The cervical spine support 140 is disposed in a direction opposite to the upper occipital bone support 120 based on the central support 110 of the occipital bone. It is formed to support the user's cervical vertebrae, and may include a preset cushion layer 141 and a first air chip receiving part 140'. Here, the cushion layer 141 may mean a layer that seals the first air chip receiving portion 140', but is not limited thereto, and may be configured in a form in which a separate cushion means is inserted.

In FIG. 4 , the cushion layer 141 will be described based on the layer shape surrounding the first air chip receiving portion 140'. As shown in FIG. 4 , the first air chip accommodating part 140 'has an air chip 160 therein. At this time, an opening/closing means (B) is formed in the first air chip accommodating part 140' so that the air chip 160 can be charged according to the user's selection. The opening and closing means (B) is preferably formed on the back (or bottom) of the cervical spine support 140 to prevent interference or direct contact with the user's occipital bone.

As described above, the cervical vertebra support 140 forms a curve section corresponding to the cervical vertebrae, but the highest point of the curve section may be formed higher than the highest point of the central support part 110 of the occipital bone. The height of the cervical spine support 140 can be adjusted by filling the air chip 160.
After opening the opening and closing means (B), the user can increase the height of the cervical vertebra support 140 by inserting the air chip 160. Since each user has a different body shape, the air chip 160 is freely inserted according to the user's choice.

delete

Referring to Figure 4, the functional pillow according to the present invention may include an outer cover (150). The outer cover 150 is configured to cover all of the aforementioned occipital bone central support 110, side head support 130a, 130b, occipital bone upper support 120 and cervical spine support 140. As an example, the outer cover 150 may be made of 100% polyester material, and a mesh area may be formed on the side to ensure air permeability. At this time, the lining of the outer cover 150 may be 100% made of polyurethane material.

Functional pillows according to the present invention can be divided into 'adults' and 'children'. This is because there is a big physical difference between an adult and a child. As an example, for adults, it may consist of 200 g of Dacron cotton, 550 g of 3D cotton, and 130 g of Airchip 160. For children, it may consist of 100 g of Dacron Cotton, 250 g of 3D Cotton, and 70 g of Air Chip (160). This weight is only an example, and it is specified in advance that it may be configured to be optimized for the user according to the manufacturer's choice.

Referring again to FIG. 2, the curve of the bottom of the cervical spine support 140 based on the plane will be described. The cervical spine support portion 140 may include a protrusion 143 and an indentation portion 142 relative to a plane.

The valley of the protrusion 143 may correspond to an extension line formed at the center of the plane. In other words, it protrudes outward while forming a predetermined curvature. A pair of recessed portions 142 are formed on both sides of the protruding portion 143 to be recessed toward the inside. At this time, the protruding portion 143 and the indented portion 142 are formed in a continuous curve section.

In the functional pillow according to the present invention, the protrusion 143 is formed, so that the user's cervical spine can be stably and intensively supported. Through the functional pillow, to form a C-shaped curve of the user's cervical spine, to form a pair of indentations 142 in order to prevent the pressure from being distributed to parts of the user's body other than the cervical spine. When the cervical vertebra support 140 supports a body part other than the user's cervical vertebrae, the weight of the force supporting the user's cervical vertebrae may be relatively reduced. This is to prevent this.

Referring to FIG. 5, a modified example of the first embodiment of the functional pillow according to the present invention will be described. The central supporting part 110 of the occipital bone further includes a second air chip receiving part 145 formed to surround the edge of the central supporting part 110 of the occipital bone.

The second air chip accommodating unit 145 may be configured to change the support state around the user's occipital bone by adjusting the charging state of the air chip. The shape of the user's occipital bone may be different, and this is to cover the user's occipital bone more according to the user's preference. As an example, it can be very effective for people or women with a relatively small size of the occipital bone or head. The second air chip accommodating part 145 can be opened and closed through a zipper 1451 and a zipper handle 1452, and they are preferably formed on the bottom of the functional pillow.

Figure 6 is a vertical cross-sectional view according to a second embodiment of the functional pillow of the present invention, showing a deformed structure of the cervical spine support. Differences from the above-described first embodiment will be mainly described.

The cervical support part 240 of the second embodiment has a structure in which an air chip layer 242, an elastic socket layer 241', and a cushion layer 246 are sequentially stacked. It is characterized in that it is not composed of only the air chips 260a, 260b, and 260c, but also includes elastic members 247a, 247b, and 247c disposed in the vertical direction. Unlike the first embodiment, since the user's cervical vertebrae are supported by the elastic members 247a, 247b, and 247c having a predetermined elastic force, the user can feel a stronger reaction force against the cervical vertebrae. At this time, when the elastic members 247a, 247b, and 247c directly support the user's cervical vertebrae, the user may be uncomfortable, so a separate cushion layer 246 may be provided to cushion them and provide a cushioning feeling to the user. can At this time, the cushion layer 246 may be formed of various materials. In addition to the above-mentioned materials, it includes latex, memory foam, goose hair, cotton wool, wool, cypress tree, natural seeds, buckwheat hulls, polypropylene (PP) cotton, micro beads (EPS), expanded polypropylene (EPP), etc. , but is not limited thereto.

The elastic members 247a, 247b, and 247c are fixed in the vertical direction by the elastic member support 248, and the elastic member support 248 is preferably stably fixed to the lining 241. At this time, the elastic member support 248 may be composed of a member having a predetermined rigidity to stably support the elastic members 247a, 247b, and 247c.

In addition, in the elastic socket layer 241', the elastic member 247a positioned at the center may have a higher initial height or elastic modulus than the outer elastic members 247b and 247c. This is to support the cervical vertebrae through stronger elasticity.

Referring to FIGS. 7 and 8 , air chips 260a, 260b, and 260c applied to the present invention will be described.

Referring to FIG. 7 first, all of (a) to (c) of FIG. 7 may be understood as a cylindrical structure. (a) of FIG. 7 means a structure in which the upper and lower surfaces are open, and is a structure in which air can pass in both directions. (c) of FIG. 7 is also the same, but means structures having different diameters. By providing various types of air chips 260a, 260b, and 260c, it can be used to maximize the user's desire.

Figure 7 (b) is a structure in which the upper and lower surfaces are closed. That is, it can be understood as a structure that confines air therein. Internal air may serve as a predetermined cushion.

Referring to FIG. 8, another structure of an air chip is shown. As a cylindrical structure with both upper and lower surfaces open, a spherical gel unit 362 may be accommodated in a bonded state therein. That is, the spherical gel unit 362 accommodated in the cylindrical body 361 may serve as a soft cushion. The gel inserted into the gel unit 362 may be any known type of gel, and a functional material exhibiting a sleeping effect may be accommodated. The inside of the gel unit 362 may be configured in the form of a capsule in which a functional material is accommodated.

9 is a vertical cross-sectional view according to a third embodiment of a functional pillow according to the present invention, showing a state in which a direction unit/heating unit is provided.

Referring to FIG. 9 , a structure in which a direction unit or a heating unit 470 is inserted into a cushion layer 449 is shown. As an example, a fragrance unit emitting a lavender scent that helps the user sleep well may be inserted. Such a fragrance unit may be separately sold to users, and after being sold in liquid form, the user may spray the fragrance unit periodically and continuously use it.

In addition, the heating unit may perform a so-called 'hot pack' function. In particular, it can be very effective for users who have stiff necks or pain in neck muscles. After heating the heating unit through a microwave oven or a separate heating means, it can be inserted into the cushion layer 449 and used.

10 is a schematic diagram schematically illustrating a process in which the functional pillow of the present invention transmits pressure information to a user terminal using wireless communication.

Referring to FIG. 10 , each of the above configurations may include first through fifth pressure sensors 181 , 182 , 183 , 184 , and 185 . The pressure sensors 181 , 182 , 183 , 184 , and 185 can check whether the load on the user's head is properly distributed and whether the cervical vertebrae are effectively supported.

For example, when pressure information obtained from the second pressure sensor 182 is smaller than a preset K value, this may mean that the user's cervical vertebrae are not properly supported. In this case, by further filling the aforementioned air chip 160, the force supported on the user's cervical vertebrae can be increased.

In addition, such pressure information may be machine-learned through the machine learning model 191 connected to the integration server 190, and such learning data may be continuously provided through the user terminal. In addition, the user can monitor his/her current state through the user terminal.

The above embodiment in the present invention is an example, and the present invention is not limited thereto. Anything that has substantially the same configuration as the technical concept described in the claims of the present invention and achieves the same effect is included in the technical scope of the present invention.

110: occipital bone central support
120: occipital bone upper support
130: side head support
140: cervical support
150: outer cover
160, 260a, 260b, 260c: air chip

Claims (11)

As a functional pillow that can adjust the height of the user's cervical spine,
A central support for the occipital bone formed to support the center of the occipital bone of the user based on a user-defined posture in which the user is lying face down, including a curved section gradually increasing in height toward the center, a central support for the occipital bone;
a pair of side head rests disposed at both ends of the central support part of the occipital bone;
An upper occipital bone upper support portion disposed above the occipital bone central support portion with respect to a plane, and having a curved section gradually increasing in height toward the upper side, formed with an upper occipital bone support portion; and
A cervical spine support portion formed to support a user's cervical spine by being disposed in a direction opposite to the upper portion of the occipital bone support portion based on the central support portion of the occipital bone, including a preset cushion layer and a first air chip receiving portion, wherein the first a cervical vertebrae support having an opening/closing means formed on one side of the air chip accommodating unit to enable charging of a preset type of air chip; Including,
The cervical support part,
A curve section is formed to correspond to the cervical vertebrae, but the highest point of the curve section is formed higher than the highest point of the central supporting portion of the occipital bone,
The occipital bone central support,
Further comprising a second air chip receiving portion formed to surround an edge of the central supporting portion of the occipital bone,
The second air chip accommodating part,
By adjusting the charging state of the air chip, configured to change the support state around the user's occipital bone,
Functional pillow.
The method of claim 1,
The cervical spine support,
relative to the plane,
A protrusion part is formed with a lower end protruding outward by a predetermined length, and a pair of indentations that are recessed inward are formed on both sides of the protrusion part, and the protrusion part and the pair of indentation parts form a predetermined continuous curve. doing,
Functional pillow.
The method of claim 2,
the protrusion,
Based on the vertical section, a continuous curve is formed from one side facing the user's cervical vertebrae to the opposite side of the one side,
One side of the opposing surface is provided with the opening and closing means,
Functional pillow.
The method of claim 3,
the protrusion,
Based on the vertical section, forming a curve so that the height of the highest point is higher than the height of the highest point of the indentation,
Functional pillow.
The method of claim 1,
The air chip,
It has a cylindrical shape with open upper and lower surfaces and is made of polyethylene having a predetermined thickness,
The height of the cervical spine support is adjusted by adjusting the charging state of the air chip in the first air chip accommodation unit.
Functional pillow.
delete The method of claim 5,
The air chip,
It is formed in preset first to Nth types,
The first to Nth types are each formed with a different diameter or height,
Functional pillow.
The method of claim 5,
The air chip,
A spherical gel unit is accommodated in a bonded state in the cylindrical shape,
The gel unit is disposed continuously in contact with each other along the height direction of the air chip.
Functional pillow.
The method of claim 1,
The cervical spine support,
Based on the vertical section, the air chip layer, the elastic socket layer, and the cushion layer are stacked in order,
The elastic socket layer,
At least one elastic member having a predetermined elastic force is disposed in a vertical direction, and the elastic member is formed to be compressed when the user's cervical spine is supported.
Functional pillow.
The method of claim 9,
The elastic socket layer,
Based on the plane, the elastic member located at the center side is formed so that the height or elastic modulus of the initial state is greater than the elastic member located on the outside,
Functional pillow.
The method of claim 9,
The cushion layer,
(a) a fragrance unit providing a user with a preset scent; or
(b) a heating unit that transmits thermal energy to the user's cervical vertebrae; Formed to be able to be inserted,
Functional pillow.

Images