Adult pillows can be divided into single pillows and double pillows according to different users, and pillows with different shapes have different sizes. The common size of single pillow is 40*70cm or 38 * 63cm；; The common size of a couple's double pillow is 47* 120cm or 47 *150cm; The height of adult pillow is 80- 150mm, which should be adjusted according to personal sleep habits. People who are used to lying on their backs have pillows as high as fists; For people who are used to lying on their side, the height of the pillow should be consistent with the width and length of the shoulders.