When is the best time to sleep at night?

It is recommended to sleep at 1 1 at night, and it is best to fall asleep at 1 1 at noon. In this detoxification stage, it is best to sleep at the same time, for example, 7.5 hours is better than 8 hours, because the sleep cycle is 1.5 hours, and you sleep 7.5 hours. Thank you, I hope to adopt it, and the pro-test is useful.