It's very hot in school. There is no electric fan. What if I can't sleep at night?

At that time, there were 8 people in a dormitory in our school, and only a small electric fan was hung on the ceiling, which made little difference. It's really hot, and then it's too hot to sleep every night. I take a washbasin and put half a basin of water on the bed, and put a towel in the water. Don't take it out, don't screw it out. It's hot, I will squeeze some water from the towel in the water and apply it to my body, and then sprinkle some water on my body. Water will evaporate and become very cold. In fact, I'm finally too tired to sleep. I hope this helps.