Hello, classmates. Staying up late is very harmful to your health, so you must get into the habit of going to bed early and getting up early, work and rest must be regular, and set a good time at night, such as going to bed at ten o'clock and leaving at six in the morning. Eight hours of sleep is enough. You can soak your feet with hot water before going to bed to help you sleep. Don't think about anything else, just close your eyes and sleep. Thank you.