Why do people draw curtains when they sleep at night? Is there any legend?

1. Home gives people a warm feeling. Going home at night, sleeping, the curtains are pleasing to the eye, and I feel surrounded when I sleep, which is very reassuring. 2. Protect privacy, close the curtains and everything in the room. 3. block the sun. Some people work the night shift, go home late, sleep, close the curtains, and sleep beautifully the next day without being awakened by the sun. 4. Personal hobby, of course, drawing curtains is not everyone's favorite ..................... 5. It will be windy at night, but sleeping with the windows closed is obviously not conducive to air circulation, so drawing curtains is both wind and will not hinder air circulation ... 6. More superstitious, it is said that some ghosts like to peep at people in the room from the windows at night, or come in from the windows. Closing the curtains can stop these ghosts ... 7. It can break the feng shui.

Please accept it, thank you!