Chinese medicine believes that the correct sleeping position should be lying on the right side with legs slightly bent. In this way, the heart is in a high position, and the pump function is better utilized; Low liver position and good blood supply are beneficial to metabolism; Food in the stomach is pushed to the duodenum by gravity, which can promote digestion and absorption. At the same time, the whole body is in a relaxed state, breathing evenly, the heartbeat slows down, and the brain, heart, lungs, gastrointestinal tract, muscles and bones are fully rested and supplied with oxygen.

Of course, for a healthy person, you don't have to stick to your sleeping position too much, because overnight, people often can't sleep in a fixed sleeping position until dawn, and most people are constantly changing their sleeping position, because if you fix a sleeping position for a long time, the local skin on the bottom side will be disturbed by long-term pressure, which is not good for health. However, long-term local compression of the skin will produce some metabolites that stimulate the nerves, so that the body will automatically change its sleeping position before these positions are painful. Some patients who need to stay in bed for a long time and are inconvenient to rotate have local blood circulation, leading to local skin necrosis. This phenomenon is bedsore. Ordinary healthy people automatically change their sleeping positions several times every night. This is more conducive to relieving fatigue.

Finally, it is also important to choose a moderate pillow, just to keep the cervical spine and the whole spine in balance with the bed plane (referring to the lateral position), with the head high and the feet low. As for the specific height, it is not necessary, because everyone's spinal physiological curvature is different. As long as the height is suitable for sleeping comfortably, the height and shape of the pillow are preferably plastic.