Do a few things before going to bed every day: wash your face, feet and brush your teeth; Drink a cup of warm water; Go to the bathroom to solve the worries; After lying in bed, take three deep breaths, exhale for not less than 25 seconds each time, inhale for not less than 45 seconds each time, and breathe evenly, carefully and continuously; Review the day's events simply and objectively, then relax, keep your body posture upright, put your arms flat on your sides, and naturally separate your legs. Don't cross and overlap, face up, don't cover your chest and abdomen with thick quilts, and cover them with uniform thickness and weight. Close your eyes gently, focus on the back of your head, gradually move to the lower abdomen, and finally pay attention to the middle part between the navel and the waist and eyes of the lower abdomen, and then spread to the whole body. The whole body starts to get warm and very comfortable, and then you pass out and fall into a deep sleep. After about 4 hours, your brain returns to normal sleep. At this time, your sleep needs for one day have been completely supplemented, which can meet the needs of continuous work for 20 hours.