Generally speaking, the right lateral position is the best, because the heart is located slightly to the left of the chest. The right lateral position can avoid pressing the heart and is conducive to blood return. It is understood that 60% people choose supine sleeping position, which is also the best public sleeping position recommended by doctors. Advantages: it does not oppress internal organs. Disadvantages: it is easy to cause drooping of the tongue base and hinder breathing. Not suitable for people: people who snore and have respiratory diseases. Doctors lying on the left believe that this sleeping position is easy to make people toss and turn during sleep, leading to unstable sleep. Moreover, because the human heart is located on the left side of the body, lying on the left side will oppress the heart, so it is a very unhealthy sleeping position. Advantages: No disadvantages: it is not easy to lie on the left side when the heart and stomach are compressed, especially for patients with gastropathy, acute liver disease and gallstones. 25% of people who lie on the right side will sleep facing the right side. Advantages: it will not oppress the heart, and sleep has a sense of stability. Disadvantages: it affects the right lung movement and is not suitable for patients with emphysema. I think, if your hair is not so messy, then you can sleep (that is, when you are not asleep), keep sleeping upwards, and make the hair at the back of your head neat and smooth ... it will be much better if you move it after sleeping.