Windows are like the eyes of a room, especially when you sleep at night. The light outside is dark and the room is bright. Or lying flat or leaning back, in such an environment, you will feel that you are staring at the dangerous place, but you can't see the changes at all, resulting in anxiety. On the other hand, the window is the place with the strongest airflow and light, and the moving image is very big, which has a great influence on sleep. People's energy is easily lost, so it is also bad for their health.