1Eat small meals often。

2. Turn off your phone。

3. Clear your brain

4. Listen to hypnotic CDS

5. Have a regular life

6. Turn down the bath water temperature

7. Don't paint red in the bedroom

8. No games at night

9. Keep your feet warm

10. Follow the 20-minute rule

If you can't fall asleep for 20 minutes, get up and do something until you feel sleepy and then go back to bed。