It's so hot that I can't sleep. How to be cool? There is no air conditioning fan to blow.

Buy ice silk mats, wear ice silk vests, stick ice stickers, ice pillows, ice pillows. Freeze a large piece of ice and put it in a plastic bag. You can lean on it or sit and hold it. It's much better to wear ice silk clothes when going out, but my ice silk vest is too exposed, and I usually wear it according to my mood. Just take a cold bath and get some dew. It should be good to stop sweating and fog.