Why do you have to close the curtains when you sleep at night? Is it okay not to pull? Will it have a bad influence? ...

It doesn't matter whether you pull it or not. After reading a lot of information about common sense of life, my suggestion is that it is better to close the window! In the process of sleeping, the human body is also growing slowly, and the air flow through the window is not very good. When sleeping, all the organs of the body run slowly, just like throwing a child into a rushing river. The soothing air around can improve the quality of sleep and get a good rest! Of course, some people like to open the window and have a rest. In my opinion, it is better to pull!