After repeated studies, it is found that the height of sleeping on the side should be at least 2.5 cm higher than sleeping on the back. If the two sleeping positions are not properly supported, stiff neck and numbness of the shoulders and arms are prone to occur. Therefore, the professional pillow is special Assume:

• The middle fossa-shaped supine sleeping area: It can correctly support the head and protect the physiological curvature of the cervical spine.
• Increase the side sleeping area on both sides: It can keep the cervical and thoracic spine straight, reduce the pressure on the shoulder and neck, and make breathing smooth and relax the whole body..