Most girls sleep at night under these circumstances. Of course, top student must study all night. Boys can do many things without sleeping. Students who have a good relationship with good friends often get drunk after drinking pyrimidine for several hours, and even run the road at night. Others will team up to play games in Internet cafes or dormitories. Of course, there are also some top student who study all night, some who work part-time because of poor family conditions, and some boys who accompany their girlfriends romantically. In short, boys and girls don't sleep at night, which is nothing more than these situations.
Finally, I would like to advise you that if you want to go to school, you should have a good rest at night, just like going to school. Health is the capital of revolution. Learning is not the only way out, but it is the best way out. Don't waste time in the best youth, it will be too late to regret when you are old. It's only a matter of time before you work hard for a few years and get ahead in the future. You can do something without it, but you must have study and rest.