According to feng shui theory, should the bedroom be closed when sleeping?

When you sleep at night, be sure to close the bedroom door. On the surface, opening the door can let the air circulate and have fresh air. But when people rest, muscles, pores, skin, etc. The whole body, even all organs, are dormant. Resistance and immunity are the lowest at this time. If you sleep with the door open, the outside air is cool at this time, which is obviously different from the temperature our body needs, which is harmful to health. Chronic diseases will appear slowly. So I don't suggest you open the door to sleep!