The role of the pillow is to balance the head and the lumbar vertebrae so that the cervical vertebrae are not pressed; when sleeping on the back, the height of the pillow is 5 to 8 cm; when sleeping on the side, depending on the shoulder width of each person, the female The height of the pillow is 7 to 12 cm and the height of the male pillow is 11 to 14 cm. The appropriate height of the pillow can keep the cervical vertebrae from being uncomfortable due to the high height during sleep, but not everyone will stay in the same sleeping position during sleep, often alternating between supine and lateral. Therefore, when choosing a pillow, the height of the pillow is 8 to 10 cm, and the male pillow can be increased by 2 cm.
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