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58results about How to "Improve sleep comfort" patented technology

Air conditioner sleep operation control method

The invention discloses an air conditioner sleep operation control method which comprises the following steps of utilizing a sensor to detect state parameters of a human body in real time and judging whether the human body falls asleep and whether the human body wakes up; when judging the human body falls asleep, controlling an air conditioner to be switched into a sleep mode from a current operation mode and controlling the air conditioner according to a sleep curve; when judging the human body wakes up, controlling the air conditioner to exit the sleep mode and be switched into the operation mode before sleeping, wherein the sleep curve comprises a one-to-one correspondence curve of fixed moments and temperatures and the step of controlling the air conditioner according to the sleep curve comprises the process of controlling the air conditioner at a certain fixed moment in the sleep curve by using a temperature corresponding to the certain fixed moment as a target control temperature. By utilizing the air conditioner sleep operation control method, the sleep mode of the air conditioner can be more effectively and intelligently controlled and sleep comfort is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Sleeping operation control method for air conditioner

The invention discloses a sleeping operation control method for an air conditioner. The method comprises the steps of detecting human body state parameters through a sensor on real time to determine whether a human body falls asleep or wakes up; if determining that the human body falls asleep, controlling the air conditioner to switch from the current operation mode into a sleeping mode, and controlling the air conditioner according to a sleeping curved line; if determining that the human body wakes up, controlling the air conditioner to exit the sleeping mode and enter the operation mode before falling asleep; the sleeping curved line includes a basic sleeping curved line and a self-learning sleeping line; when controlling the air conditioner according to the sleeping curved line, selecting temperature corresponding to some fixed time or some adjustable time of the sleeping curved line as the target control temperature to control the air conditioner. With the adoption of the method, the sleeping mode of the air conditioner can be effectively and intelligently controlled, and the sleeping comfort can be increased.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Sleep data recording pillow and sleep data recording method

The invention discloses a sleep data recording pillow and a sleep data recording method. The pillow comprises a sponge pillow inner, a lining gridding cloth cover arranged outside the sponge pillow inner in a sleeving mode and an outer cloth cover arranged outside the lining gridding cloth cover in a sleeving mode and further comprises a pressure sensing module arranged on the surface of the lining gridding cloth cover and a main control circuit connected with the pressure sensing module. Pressure changing is sensed through the pressure sensing module when a user moves, the sleep condition of the user is judged according to the time length of pressure changing, a sleeve curve is made and compared with those of different kinds of user groups, and the sleep quality of the user is comprehensively analyzed. According to the sleep data recording pillow and the sleep data recording method, by arranging the pressure sensing module on the pillow, sleep data of the user is accurately measured, and the sleep condition of the user can continue to be analyzed conveniently; meanwhile, by analyzing the sleep condition of the user through big data analysis, the user can more comprehensively know the sleep condition of the user, and then the sleep quality of the user is improved.
Owner:东莞市同祥海绵制品有限公司

Latex product for mattresses or pillows and preparation method thereof

The invention discloses a latex product for mattresses or pillows, which is applicable to mattresses or pillows. The latex product is composed of the following components in parts by weight: 85-95 parts of natural latex and 5-8 parts of butadiene-styrene latex. The preparation method of the latex product comprises the following steps: weighing raw materials natural latex, butadiene-styrene latex and assistants according to parts by weight, foaming, boiling, drawing the mold, dehydrating, drying, and cutting into the product in the corresponding shape. The preparation method is simple in technique and convenient to operate, and can be completed by a common worker. By adding the butadiene-styrene latex into the natural latex, the shape stability of the mattress or pillow is enhanced on the premise of maintaining the advantages of sleep assistance, vermin resistance and the like in the natural latex, and the latex product feels soft and enhances the sleep comfort.
Owner:泉州恒昂工贸有限公司

Operation control method and device, air conditioner and storage medium

The invention provides an air conditioner, an operation control method and device of the air conditioner and a readable storage medium. The operation control method of the air conditioner includes thesteps that the air conditioner is controlled to operate according to a preset control parameter curve; a received adjustment instruction is responded, the change trend of the control parameter curveis determined; and according to the relationship between the adjustment instruction and the change trend, a correction operation is carried out on the control parameter curve to be executed to controlthe air conditioner to continue to operate according to a modified control parameter curve. By implementing the technical scheme, on the one hand, based on the adjustment needs of a user, the controlparameter curve is optimized to achieve an air-conditioning effect that matches the environment and the state of the user, and the probability that the user adjusts again is reduced; and on the otherhand, the situation that the user experience is affected due to excessive changes in environmental parameters such as room temperature caused by direct operating of the air conditioner according to the adjustment instruction is avoided.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Control method and control device of intelligent pillow

The invention discloses a control scheme of an intelligent pillow. The control scheme comprises the following steps of obtaining sleeping parameters input by a current user based on a mobile terminal; computing according to the sleeping parameters input by the mobile terminal, and obtaining the adaptation height of the intelligent pillow when the current user sleeps; carrying out air inflation or air deflation on an airbag in the intelligent pillow, thus controlling a sleeping zone of the intelligent pillow to achieve the adaptation height. The invention also discloses a control device of the intelligent pillow. According to the technical scheme provided by the invention, the technical problem of an existing pillow that the height of the sleeping zone of the existing pillow cannot be regulated according to the difference of the sleeping parameters of a user is solved.
Owner:殷隽

Pillow structure

The invention provides a pillow structure. The pillow structure comprises a pillow body which is made of a hard material or a semi-hard material, a hollow shell part is arranged in the pillow body, the end edge of the surface of the pillow body is at least provided with an air hole part correspondingly, and a venting coating body is sleeved on the pillow body; the surface of the pillow body can be selectively combined with a buffer material or an elastic material which is used for providing a better elastic supporting effect; meanwhile, the surface of the pillow body can be selectively provided with a venting hole set or a venting groove set which is matched with the air hole part on the surface of the pillow body to enhance the air circulation; and by matching the structures, the venting coating body is covered on the pillow structure, and the air hole part is arranged so as to increase air convection, and a sleeping auxiliary tool which has a better support effect and the venting function is provided so as to maintain the sleep state that the head is cool and feet are warm.
Owner:FORMOSA SOUNDING

Intelligent far-infrared heating mattress

The invention relates to an intelligent far-infrared heating mattress which is characterized by comprising a mattress frame, an elastic permeable layer, a heating layer, a thermal insulation and reflection layer, a protective layer and a spring; the elastic permeable layer is fixed on the mattress frame, the heating layer is arranged under the elastic permeable layer, the thermal insulation and reflection layer is arranged under the heating layer, the protective layer is arranged under the thermal insulation and reflection layer, and the spring is arranged under the protective layer; the heating layer is formed by connecting a plurality of strip-shaped heating bodies in parallel through a lead; each of the plurality of strip-shaped heating bodies consists of a first insulating layer, a graphene heating layer, electrodes and a second insulating layer, the graphene heating layer is rectangular, the first insulating layer and the second insulating layer seal and wrap the graphene heatinglayer, the electrodes are connected with the two short sides of the graphene heating layer and are also connected with a power supply controller through the lead, and a temperature sensor is also connected with the power supply controller. The intelligent far-infrared heating mattress provided by the invention has the beneficial effects of high heating speed, high heating efficiency, energy conservation, environmental protection, lower manufacturing cost, good heat transfer effect and the like.
Owner:浙江融墨科技有限公司

Passive side-lying device, control method thereof and sleep assisting system

InactiveCN111281347AGuaranteed deep sleepImprove sleep postureSnoring preventionRespiratory organ evaluationPhysical medicine and rehabilitationSleep state
The invention belongs to the technical field of smart home, and discloses a passive side-lying device, a control method thereof and a sleep auxiliary system, and the device comprises a parameter presetting module which is used for presetting side-lying related parameters for a user; a camera module is used for acquiring a user sleep image; the sign information monitoring module is used for acquiring related sign information of a user; a sound acquisition module is used for acquiring user sleep sound; a data analysis and extraction module is used for extracting a user sleep posture, a user sleep breathing condition and other related information; a sleep state judgment module is used for judging whether the user sleeps abnormally or not; a side-lying determination module is used for determining whether to start the side-lying device; the side-lying starting module is used for adjusting air pumps on the two sides based on preset side-lying parameters or in a self-adaptive mode to enable the user to be in a side-lying posture; the data analysis module is used for analyzing breathing information when the user lies on the side and lies on the side. The device can effectively help a userto form a good side-lying habit, improves the sleep comfort, and reduces the situations of snoring, apnea and the like.
Owner:韩赛红

Manufacturing process of mildewproof and antioxidative natural latex mattress

The invention provides a manufacturing process of a mildewproof and antioxidative natural latex mattress. The manufacturing process comprises the following specifc steps: (1) uniformly mixing liquid state natural latex, a vulcanizing agent and a coagulator in a material mixer to form a liquid raw material; (2) continuously introducing helium into the liquid raw material, spraying a mixed extraction liquid of asparagus lettuce and pitaya peel into the liquid raw material while stirring, wherein in the stirring process, the mixed extraction liquid of asparagus lettuce and pitaya peel and the liquid raw material together form foam, guiding the formed foam into a mold immediately, and when the mold is full filled with the foam, closing the mold and sealing the mold; (3) transferring the mold to a heating room, filling the heating room with high-temperature steam to cure the foam in the mold, transferring the mold out of the heating room, and naturally cooling the mold and opening the mold to obtain the formed natural latex mattress; and (4) soaking the natural latex mattress in a chitosan-acetic acid solution, adding a crosslinking agent, performing microwave irradiation, leaving the mixture to stand to defoam, forming a film on the surface, taking the mixture and cleaning and drying the mixture to obtain the mildewproof and antioxidative natural latex mattress.
Owner:佛山市凡卡家具有限公司

Vehicle-mounted inflating mattress and vehicle including same

The invention discloses a vehicle-mounted inflating mattress and a vehicle including the same. The vehicle-mounted inflating mattress comprises a bed body and a first supporting body, and the bed bodyin an air inflating state can be levelly placed between the first row of seat in a carriage and the rear wall of the carriage; and the first supporting body is arranged at the first end of the bed body, and the first supporting body in the air inflating state can be arranged between the first row of seat and a second row of seat in an inserted and filling mode. According to the vehicle-mounted inflating mattress, the bed body in a inflating state can be levelly placed between the first row of seat in the carriage and the rear wall of the carriage, the problem that the inflating mattress cannot be unfolded in a vehicle is solved, and sleep quality and comfortableness in the carriage are optimized; and the first supporting body in the inflating state can be arranged between the first row ofseat and the second row of seat in the inserted and filling mode and is used for supporting the bed body, therefore, the phenomena of collapse and the like of the bed body due to vibration of the vehicle can be prevented, and the sleep quality and comfortableness in the carriage are further improved.
Owner:BEIQI FOTON MOTOR CO LTD

Polysomnography device, system and method for apnea

The invention discloses a polysomnography device, system and method for apnea. The device comprises a blood oxygen judgment module, an apnea type judgment module and a body position judgment module; the blood oxygen judgment module is configured to preliminarily judge apnea by polysomnography according to the blood oxygen saturation and a saturation threshold value; the apnea type judgment module is configured to obtain a thoracico-abdominal fluctuating oscillogram when obtaining the preliminary judgment result of breathing abnormality, and obtaining a breathing abnormality judgment result of obstructive sleep apnea or central sleep apnea according to comparison of the thoracico-abdominal fluctuating oscillogram and a normal breathing oscillogram; and the body position judgment module is configured to obtain body position information according to the pressed state of each part of a human body if the obstructive sleep apnea occurs, and judge whether the obstructive sleep apnea occurs or not according to the correlation between the body position information and the oxyhemoglobin saturation. According to the device, system and method, the judgment accuracy is improved, the traditional sleep polysomnography method is simplified, the problem of insufficient diagnosis rate due to too high cost is solved, and the problem of detection data deviation caused by too many detection instruments and strange environment is reduced.
Owner:SHANDONG UNIV

Critically ill patient monitoring system based on Internet of things

The invention discloses a critically ill patient monitoring system based on Internet of things. The system comprises a breathing monitoring module, a multistage vibration wakening terminal, a sound and light wakening module, an oxygen supply module, an alarm module and a controller, wherein the breathing monitoring module is used for monitoring the breathing state of a patient; the multistage vibration wakening terminal is connected with the arm of the patient, and is used for wakening the patient; the sound and light wakening module is arranged on the bedside of a sickbed; the oxygen supply module is used for conveying oxygen gas to the patient; the alarm module is used for giving out alarm to medical care personnel; the breathing monitoring module, the multistage vibration wakening terminal, the sound and light wakening module, the oxygen supply module and the alarm module are respectively electrically connected with the controller. The critically ill patient monitoring system basedon Internet of things disclosed by the invention can improve a monitoring wakening effect.
Owner:林若骐

Air conditioner infant auxiliary nursing control method, control device and air conditioner

PendingCN114061072ALoud soundPrevent waking up or even cryingMechanical apparatusSpace heating and ventilation safety systemsNoiseEngineering
The invention provides an air conditioner infant auxiliary nursing control method, a control device and an air conditioner, and relates to the technical field of air conditioner control. The control method comprises the steps that the temperature value and the humidity value of an infant paper diaper are obtained, based on the temperature value and the humidity value, the air conditioner is controlled to play pre-stored audio, and a reminding instruction is generated and sent to a mobile phone bound with the air conditioner. The pre-stored audio comprises white noise audio and / or stored audio. Whether an infant urinates or not is judged according to the detected temperature value and humidity value of the infant paper diaper, the pacifying audio and the white noise audio are played in time during urination, the infant is prevented from being awakened or even crying due to urination, and the situation that the infant is difficult to fall asleep in the later period is prevented; sleep-aiding audios such as white noise are supplemented, it is guaranteed that the infant continues to fall asleep, parents are reminded to replace the paper diaper, and skin discomfort of the infant and skin lesion symptoms caused by wearing of the high-humidity paper diaper of the infant are prevented.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +2

Multifunctional cart

The invention discloses a multifunctional cart, being characterized by comprising a pushing handle, a base and a backrest. The pushing handle comprises a handle and a pushing frame. One end of the pushing frame is connected with the base, the other end of the pushing frame is connected with the handle, a seat cushion is arranged on the base, a base armrest is also arranged, the backrest is arranged on the pushing handle through a backrest support, a cart supporting frame is connected to the bottom of the base, a connection revolving shaft is arranged between the pushing frame and the base, a safety belt armrest is arranged on the backrest, a buckling mechanism is arranged on the safety belt armrest, and rolling wheels are connected to the bottom of the cart supporting frame. The multifunctional cart has the beneficial effects that the multifunctional cart fulfills multiple functions and replaces baby walkers. The height of the cart is adjusted when a baby has a meal, the function as a bed is also fulfilled when a baby is at rest, the comfort of sleeping is improved, sunlight shielding when people hang out is realized, the function of strollers is fulfilled, the purpose of multiple functions is realized and the cart is suitable for market application and promotion.
Owner:韩玉生

Office table applicable to noon break of employees for office building office work

InactiveCN110584324ASolve back painSolve the problem of neck painOffice tablesFeetNoonDesk
The invention relates to the technical field of office supplies and discloses an office table applicable to nook break of employees for office building office work. The office table comprises table legs, a table top plate is fixedly mounted at the top ends of the table legs, a keyboard drawer layer is fixedly mounted at the lower end of the table top plate, and a support plate is fixedly mounted at the upper end of the keyboard drawer layer. During normal office work, the office table can be used as a computer desk; when an employee needs to have a rest, the lower end of a limiting bolt can bepressed down manually, and then a limiting groove is released; therefore, a placing plate can be manually lifted, the height of the placing plate can be adjusted as required; after adjustment, the placing plate can be fixed by hanging a hook on a height rod in a hanging hole, the employee can lie on the placing plate for noon break, the cervical vertebra and the waist are protected by changing the posture of the employee for noon break, and the effect of improving sleeping comfort is achieved due to the fact that a soft cushion is installed on the placing plate.
Owner:杭州富阳林长发科技有限公司

Health-care sleeping pillow with high and low subareas

The invention relates to improvement of a health-care sleeping pillow of an article for daily use, in particular to a health-care sleeping pillow with high and low subareas. The health-care sleeping pillow comprises a pillow case filled with filling particles and is characterized in that a section of subarea sewing thread is horizontally distributed and arranged in the middle of the pillow case and divides the pillow case into a pillow head subarea, a pillow neck subarea, a left side pillow subarea and a right side pillow subarea, a section of pillow head subarea forming sewing thread is arranged on the outer side of the pillow head area, a section of pillow neck subarea forming sewing thread is arranged on the outer side of the pillow neck area, side pillow subarea forming sewing threads are arranged in two side pillow areas, and the pillow head subarea forming sewing thread and the pillow neck subarea forming sewing thread are spaced for a distance with the upper edge and the lower edge of the pillow case respectively. According to the health-care sleeping pillow with the high and low subareas, the problem that the pillow surface area of a conventional health-care sleeping pillow cannot meet the comfort requirement for sleeping of a human body is solved, and the health-care sleeping pillow is the improvement of the conventional health-care sleeping pillow.
Owner:唐运泉

Long-journey garment capable of improving sleep comfort level

The invention discloses a long-journey garment capable of improving the sleep comfort level. The long-journey garment comprises a garment body and a left sleeve. A collar is arranged at the upper endof the garment body, a fastener is installed in the center of the surface of the collar, a left sleeve air bag is arranged on the surface of the outer side of the left sleeve, a left sleeve air hole is formed above the left end of the left sleeve air bag, a right sleeve is arranged on the left side of the garment body, a right sleeve air bag is arranged on the surface of the outer side of the right sleeve, a right sleeve air hole is formed above the right end of the right sleeve air bag, a right sleeve air hole plug is installed above the right sleeve air hole, a pocket is arranged on the right side of the bottom end of the garment body, an inner container is installed on the left side of a zipper, a U-shaped pillow is connected to the surface of the inner side of the collar, and a U-shaped pillow air hole is formed in the middle of the surface of the top end of the U-shaped pillow. The long-journey garment capable of improving the sleep comfort level is attractive in appearance and capable of adjusting the thickness of the air temperature and can improve the sleep comfort level.
Owner:NINGBO JIANGBEI YIHE HEALTH MANAGEMENT CO LTD

Silk and down product for bedding article

The invention belongs to the technical field of bedding articles and particularly relates to a silk and down product for a bedding article. The invention discloses the silk down product for the bedding article. The silk and down product comprises an inner core filler, wherein the inner core filler comprises three layers from inside to outside, the inner layer is a down inner core, the outer layer enwrapping the down inner core is a down-proof fabric, and the outer layer enwrapping the down-proof fabric is a silk layer; the contents of the down and the silk in the inner core filler are calculated in percentage by weight: 25-35 percent of down and the balance of the silk; the content of the down in the down inner core is 80-95 percent. The silk and down product disclosed by the invention satisfies consumer demands and has wide market consumption potentials and popularization and application values. The silk and down product not only has optimal hygroscopicity and close-to-the-skin warmness-keeping performance and excellent temperature-regulating function, but also is reasonable in structure, easy in operation and high in cost performance.
Owner:HUZHOU QIANSI HOME TEXTILE

Soft bed designed based on S-shaped somatology

The invention relates to the technical field of soft beds, in particular to a soft bed designed based on S-shaped somatology. The soft bed comprises a bed frame and a bed mattress assembly, two adjusting bins are arranged in the bed frame, rubber bands and arc-shaped spring plates are arranged at the tops of the adjusting bins, the inner walls of the adjusting bins are provided with sliding grooves and sliding blocks, a supporting plate is fixedly arranged between two opposite sliding blocks, three supporting plates are arranged in each adjusting bin, an airbag cover is fixedly arranged at thetop of each supporting plate, a telescopic rod is arranged at the bottom of each supporting plate, an air pump is arranged in each adjusting bin, an output end of each air pump is communicated with the corresponding airbag cover through a guide tube, and a control unit is fixedly arranged on one side of a backrest of the bed frame and externally connected with a power supply through a lead. The soft bed is simple in structure, supporting force can be adjusted according to an S-curve of a human body lying flat, and sleeping comfort is improved.
Owner:惠州市明芳城家居用品有限公司

Landform adaptive sleeping bag

The invention discloses a landform adaptive sleeping bag which comprises a bag body, wherein the bag body comprises an upper layer and a lower layer; the lower layer comprises a lower inner container, a lower heat-preservation layer, an air layer and a lower protection layer which are arranged from inside to outside; the lower heat-preservation layer, the air layer and the lower protection layer are fixedly connected; the air layer comprises a plurality of inflatable air chambers which are arranged in parallel in the longitudinal direction of the bag body; an inflation hole is formed in the bag body; the inflation hole is communicated with the inflatable air chambers through air tubes; a one-way air inlet valve is arranged at the connecting part of each inflatable air chamber and the air tube; each inflatable air chamber is provided with an exhaust valve. The landform adaptive sleeping bag disclosed by the invention is adaptive to convex and concave surfaces of the ground, and the interior of the sleeping bag can be flat as much as possible, so that the sleep comfort can be improved, and the use can be convenient.
Owner:WUXI XINRENJU SCI & TRADE

New healthy bionic pillow

A novel healthful bionic pillow comprises a pillow body, wherein the pillow body consists of a back lying portion and side lying portions, wherein the side lying portions are symmetrically arranged on two sides of the back lying portion and are higher than the back lying portion; the back lying portion is provided with a neck pillow; the upper surface of the neck pillow is an arc-shaped surface of which the radian is matched with that of the cervical vertebra of a user; a first cavity is formed in a position below a neck pillow region; a first pillow pad is arranged in the first cavity; a second cavity is formed in a position below each side lying portion; a second pillow pad is arranged in each second cavity; a first groove is formed in the bottom surface of a cavity body of the second cavity; and a second groove is formed in one surface of each second pillow pad. By the novel healthful bionic pillow, different demands of the user during back lying and side lying of the user can be well met, the comfort level of the user during side lying of the user is improved, and the heights of the side lying portions can also be adjusted through the pillow pads, so that different demands of different users on the height of the pillow during side lying of the users can be met. The novel healthful bionic pillow is convenient and practical; and the sleeping quality of the user can be improved.
Owner:李鸿钧

Sleep aid device automatic detachment control method, device, sleep aid device and storage medium

ActiveCN114432567BAutomatic out of timely controlAutomatic adjustment of tightnessDiagnostic recording/measuringSensorsPhysical medicine and rehabilitationSleep state
The invention discloses a method, a device, a sleep aid device and a storage medium for automatic detachment of a sleep aid device. The method includes: acquiring the sleep aid working time of the sleep aid device, and obtaining a user's brain electrical signal within a preset time; The working time determines the working state of the sleep aid device, and determines the user's sleep state based on the EEG signal; according to the working state and sleep state, the tightness of the sleep aid device is adjusted to make the sleep aid device automatically disengage, and the tightness reflects the It is the closeness of the contact between the sleep aid device and the user's head. The present invention can automatically adjust the tightness of the sleep aid device. Since the sleep aid device is in direct contact with the user's head, it can be determined whether the user still needs the aid based on the working state of the sleep aid device and the user's sleep state. The sleep aid device can be controlled in time to automatically disengage when the sleep aid device is not needed, which is beneficial for the user to maintain a good sleeping posture and improve sleep comfort.
Owner:SHENZHEN MENTAL FLOW TECH CO LTD

Sleeping bag for vehicle

InactiveCN111990849AAvoid impact contactImprove sleep comfortPillowsSleeping rugSleep stateLap joint
The invention belongs to the field of sleeping bags and discloses a sleeping bag for a vehicle. The sleeping bag comprises a sleeping bag body and a pillow and backrest assembly, wherein the sleepingbag body is provided with a hood part and a backrest part, the pillow and backrest assembly comprises a pillow and a back cushion, the pillow and the back cushion are mutually connected through a connecting piece, a storage interlayer is arranged in the hood part, one end of the connecting piece is mounted in the storage interlayer, two ends of the pillow and two ends of the back cushion are eachprovided with at least one first lap joint part and at least one second lap joint part, and at least one fixed lap joint part is arranged on each of two sides of the backrest part. The sleeping bag isadvantaged in that the first lap joint part and the second lap joint part are correspondingly mounted on the fixed lap joint part, therefore, the pillow and the back cushion are fixed on the backrestpart, therefore, impact contact between the traveler and public facilities can be avoided, a relatively private space is provided for the traveler to have a rest, meanwhile, the back and the head ofthe human body are used for relieving poor postures in the sleeping state, and the sleeping comfort degree of the traveler in the long-distance journey is greatly improved.
Owner:SHANGHAI UNIV OF ENG SCI
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