How to improve sleep is there a good way?

Before going to bed at night, you can drink a cup of warm milk to relieve muscle fatigue. It can also soak your feet and speed up blood circulation in your legs. It can also improve the quality of sleep. Secondly, the nap time during the day should not be too long. The nap time is too long and it will lead to difficulty falling asleep at night. about forty minutes is appropriate.