Don't lean against the door or window at the bedside, and give yourself a relatively quiet and safe sleeping environment. If you rent a house, try to separate the work area from the rest area (if you don't have a separate study room and study in the same room) and use bookshelves and wardrobes to separate them. IKEA's simplest desks and shelves are good, cheap and practical. Uniform tone, no more than two colors. You can put some decorations on the shelf, and if possible, you can lay a carpet beside the bed. For girls, it is recommended to buy some Japanese-style thread incense (Indian incense is too strong), and smoke it from time to time to get rid of the flavor, which feels very temperament.