Remind him, just say, "Can you keep your voice down, it's affecting my sleep ..." If he still doesn't converge, get up and turn it off for him. If there is any excessive behavior, talk to the guide or the residential teacher. It's so loud, I think the housekeeper can't stop moving. It will definitely affect people in other rooms, right?

Some people are selfish and don't consciously think about themselves, so it is necessary for us to talk to him. After all, it will affect the efficiency of class or work the next day.