One third of life with the pillow as a companion in sleep, the pillow has a vital impact on people’s life, work and study. In reality, because people do not know enough about the appropriate degree of pillow height, the knowledge of the pillow is not deep, resulting in people due to the height of the pillow is not appropriate and seriously affect the quality of life and health, such as many people’s head, neck, shoulder, back stiffness pain and vertigo and other symptoms. Long-term high pillow, will allow people’s head in the highest position in the human body, equivalent to forced head down state, daytime ambulation 8 hours, and then sleep low 8 hours at night, a long time will make the natural curvature of the cervical vertebrae arc change, cervical vertebrae originally convex state disappeared, and even become backward projection, neck muscles in the long-term tension fatigue state, will occur after strain, spasm, neck and shoulder pain and other symptoms. The pillow is too low, or even without a pillow, will make people keep their heads up for a long time during sleep, and will likewise change the natural bending state of the cervical spine. Long-term so that the head in a lower position, gravity will make the brain blood supply imbalance, venous blood flow back slower, the relative increase in arterial blood, resulting in dry mouth, snoring, neck pain, insomnia, irritability and other symptoms. In addition, for people who are used to working with their heads down, sleeping on their backs may make them feel comfortable for a while, however, if they do so continuously, the neck ligaments will be tense for a long time and damage will occur. Head long-term in the case of insufficient blood supply and oxygen supply, will affect the brain cell metabolism, so that people distracted, difficult to sleep at night, resulting in insomnia, will also lead to memory loss, the elderly early brain dementia, brain atrophy lesions, it is easy to cause vascular sclerosis, physiological garbage can not be cleared in time and the formation of thrombosis, resulting in cerebral infarction, cerebral hemorrhage and other occurrences. The right height: pillow too high or too low are not good for human health. Research, Asian pillow to 8 to 12 cm is appropriate, roughly for people who are accustomed to supine pillow height a fist, accustomed to side sleepers pillow height a fist and a half more appropriate. Pillow height is conducive to muscle relaxation and recuperation, more conducive to blood circulation in the neck, to provide the brain with sufficient oxygen, the brain is more awake after waking up, more full of spirit. Pillow height, of course, according to the actual situation to decide, such as, in general, suffering from high blood pressure, heart disease, asthma people need to sleep on high pillows; suffering from low blood pressure, anemia, people need to sleep on low pillows.