What should I do if I can't sleep at night in hot weather?

Open the door and open the window for ventilation, take a cold shower before going to bed, keep quiet, calm and naturally cool. There is some truth in the old saying. If you can, use an air-conditioning fan. You can sleep well if it's not so hot. You can drink a glass of milk before going to bed. It is very important to keep quiet. Don't do anything easy to get excited before going to bed.