A good nap in the middle school is to ensure that you can enter a deep sleep state at noon every day (23:00- early morning 1), lie down and close your eyes at noon for at least 10 minutes (afternoon1-13), and take a nap for no more than half an hour.
There is a saying in Huangdi Neijing: "When the yang is exhausted, you will lie down, while when the yin is exhausted, you will be exhausted", which is the best interpretation of the importance of sleeping in the middle of the night to nourish yin and yang.
When the child is young, the yin qi is the most abundant in a day. At this time, the quality of sleep is the best, and it can nourish yin qi. At noon, the yang is the strongest and the yin is the weakest. Taking a nap helps to relieve stress and keep full of energy throughout the day.
Therefore, sleeping at noon should follow the principle of "sleeping at noon and taking a nap at noon".