One third of a person’s life are sleeping, so accompany us to sleep together the longest time is not parents, wife, children, but a small pillow. Although the pillow is small, learning a lot, choose a suitable pillow can bring good sleep and healthy cervical spine, and vice versa for cervical spine health brings hidden problems – insomnia, neck and shoulder pain and even affect the mood. All editions of “The Divine Couple” have little dragon girl in the high ropes to sleep on the rest of the scene, its cold sleeping posture is impressive, then this sleeping posture can really sleep high? What kind of sleeping posture and what kind of pillow is scientific? The ancient cloud “high pillow without worry”, but this sentence has no scientific reason. The pillow is too high, the head and neck excessive forward flexion, so that the back of the neck muscles and ligaments are prone to strain, inducing or aggravating cervical spondylosis. If the pillow is too low, the head and neck is too far back, the muscles and ligaments in front of the vertebrae are prone to fatigue due to excessive tension, and no pillow is a no-no. The correct sleeping posture for cervical spine health should keep the cervical spine in a neutral position, the cervical spine is neither flexed nor extended, maintaining a good physiological curvature of the cervical spine to bring a healthy cervical spine and comfortable sleep. Pillow height So how high is the appropriate pillow? Professor HyungCheol Kim from the Department of Neurosurgery, Korea, included 16 healthy volunteers in a prospective pilot study in which subjects slept on pillows of 0cm, 10cm, and 20cm, and lateral cervical spine X-rays were taken in the horizontal position to observe changes in various parameters of cervical curvature. The results suggest that a pillow with a height of 10m is most conducive to maintaining a good cervical physiological curvature.