My neighbor is disturbing others by singing in the middle of the night, what should I do?

You are still disturbing people in the middle of the night. I think you should take the initiative to protect your rights and interests.

If it were me, I would definitely get dressed and negotiate with him while he was singing. Of course I'm definitely not the only one. I usually ask someone to go with me. I think most people would feel ashamed and stop singing. If that person is very shameless and continues to sing, I will probably take a short video as evidence, and then Told him I would call the police if he didn't stop singing. Because sleep is really important to me, and I will be very irritable if I don’t get enough sleep.

However, if I am alone in other places, I will try to find the person during the day, if he has disturbed people in the middle of the night for more than two days in a row. At first I would write a note and stuff it into the crack of his door, asking him to try not to sing in the middle of the night. If repeated negotiations failed, I would still take tough measures, either contacting the property management company or calling the police. But I think many neighbors will be dissatisfied at that time, so I don’t need to be too anxious. I may wait and see everyone’s reaction before dealing with it.