165438+ is about 0: 30. I am playing mobile phone on the balcony, and four people are playing cards. I want to sleep. How do you feel? However, I know a way. First, try to fall asleep by touching your heart and feeling your heartbeat. Second, the breathing method with earplugs 478 is to inhale deeply for 4 seconds, hold your breath for 7 seconds, and exhale for 8 seconds. This is very useful, shared by an American scientist. I can only help you here, after all, I am trying.