How to treat such neighbors?

I wonder if they are old people. Generally older people get up early. If so, I think they will definitely go to bed earlier, and you and I both think it should not be earlier than them, so you should deal with a man as he deals with you. When you sleep, or when you get up in the middle of the night to go to the toilet, you can knock on your heating pipe or gas pipe. This sound can be transmitted upstairs. They can't sleep. If they ask you, you can handle it in their way. You don't have to be reasonable, but you have to tell them confidently that the voice is not yours. Although this method is very harmful, you say that they are also unreasonable people. You don't have to talk about anything with unreasonable people like them. You just want to be with whoever you want.