In addition to focusing on pillows with different characteristics, the most important thing is to determine the height and stiffness of the pillow that best suits your condition. Sleeping habits for the height of the pillow also have a slight impact, but also take into account. For normal people, the height and hardness of the pillow and fat and thin, shoulder width, neck length are related to comfort appropriate. Pillow is not careless Normal sleeping high pillows, whether it is supine or lateral, will make cervical physiological radian changes over time, the neck muscles will strain, spasm, accelerating the deformation of intervertebral joints and promote spur formation, Lead to cervical instability and other issues. In addition, high pillow will increase the angle of the neck and chest, tracheal ventilation blocked, easily lead to throat, sore throat and snoring.

 Low pillow is not comfortable to sleep long-term normal pillow, the same will change the physiological state of the cervical spine. Due to the absence of a valve in the veins of the head, gravity will slow the venous return in the brain and the relative increase in arterial blood supply, leading to headaches, irritability, insomnia and other symptoms. How to determine the pillow is too high or too low Pillow too high If the exclusion of factors, there neck pain, headache, dizziness, tinnitus and insomnia and other brain weakness, or sleep half asleep feel numb, it is very likely Your pillow is too high. Pillow too low If you do not drink water before going to sleep, but woke up and found that facial swelling may be too low pillow, causing the head caused by a slight congestion. Pillow too low, so the jaw will be lifted, easy to mouth breathing, snoring situation.
 
Under normal circumstances, the appropriate height of the pillow, 10 to 15 cm is more appropriate, but the specific size but also because of the physiological characteristics of each person, especially the physiological curvature of the neck may be. Shoulder fat body pillow can be slightly higher, while thin people may be slightly lower. Sleeping habits also have an impact on the height of the pillow. For those who are accustomed to going to bed, their pillow height should be equal to the height of their fist (the height of the boxing tiger) The pillow height should be compressed with one side of their own shoulder height is appropriate. Of course, whether sleeping, side sleeping can maintain the normal physiological curvature of the neck pillow is the best.
 
Pillow cushion in the head and neck, can play to make up the head pillow (back of the head) and the role of shoulder distance. This distance is generally about 15 cm. The head of the skull is convex backwards, while the cervical spine has an obvious lordosis. The pillow should accommodate this kyphosis well and support this lordosis of the neck, so that the neck muscles will be in Relaxed state. And too high, too short, and too strong, too soft pillows do not meet this requirement For the pillow itself, supporting the back of the neck (neck song) part should be slightly higher, and have a certain hardness, so as to foil and Maintain the physiological curvature of the neck. The part supporting the back of the head should be lower than the above parts 3 to 5 cm, so that it can fully support the head, but also with the height of the neck to adapt. In general, people with high blood pressure, heart disease, asthma sometimes need to sleep high pillow; people suffering from hypotension, anemia sometimes need to sleep low pillow.
 
 Pillow softener and more harm than good pillow, pillow and head will make the contact area is reduced, the pressure increases, the scalp uncomfortable; but if the pillow is too soft, it is difficult to maintain a certain height, neck muscle fatigue, is not conducive to Sleep, and the first depression, will affect the blood circulation, numb the head. Appropriate soft and firm pillows should choose a little soft, but without losing a certain type of hardness, on the one hand can reduce the pressure between the pillow and the scalp, on the other hand also maintained a non-uniform pressure, the blood pressure from the more Small place to pass. As long as the pillow can be slightly flexible, elastic over the General Assembly caused by neck muscle fatigue and loss Overall, the pillow of high, low, soft and hard knowledge can be summarized as follows: pillow high, will affect cervical curvature and tracheal ventilation, resulting in Neck soft tissue spasms, headache, dizziness; pillow low, easy to congestion of the head, eyelid edema, affecting the heart back to the heart and increase the burden on the heart, leading to cardiovascular and cerebrovascular diseases; pillow hard, will make the brain swollen, capillary Vascular obstruction, easy to cause local microcirculation, is the taboo of cerebrovascular disease; pillow soft, easy to heat, and the body is the most afraid of the hot head, heat will make the capillaries congestion, difficult to deep sleep, easy to wake up . High pillow harm, low pillow useless, suitable pillow can effectively prevent cervical spondylosis, to ensure sleep health. Medical health experts based on the adult head, neck, neck and other physiological characteristics of physiological measurements and the observation of normal physiological posture, that the appropriate height of the pillow are: supine head and rear pillow: 6 ± 1 CM; supine position neck pillow: 11 ± 1 cm; Lateral lying side face pillow: 13 ± 1 CM; Suitable pillow length and width are: Length 60 - 70 CM; Width 35 - 43 CM.