The correct posture of sleeping on the side is to sleep on the right side, with both legs naturally hanging down or slightly curved, and both hands can be resting on the cheeks or resting on the side. Correct side sleeping posture can make the whole body get relaxed, is conducive to lifting the body fatigue, and the right side of the lying position will not produce pressure on the heart, at the same time, it is also conducive to the food in the stomach into the intestinal tract, but also effective in alleviating the symptoms of snoring, because when sleeping on the back, the root of the tongue will fall back to cause snoring, and may cause apnea. Moreover, when you lie on your side, you need to make sure that the pillow can give enough support to your shoulders, too low or too high pillow will be very uncomfortable, if too low, the head will be tilted downward, and too high will affect the sense of comfort, and it is easy to fall off the pillow.