It's late and roommates are still quarrelling. How to gently remind them?

You can remind me if you are late to play games. You can only bring earplugs if you have a bad dormitory relationship. We have a good relationship in the dormitory. Generally speaking, for example, xx, I am super tired today and want to go to bed early. Can you keep your voice down? Don't just say, "Keep your voice down, I want to sleep." It will be much better to bring some modal particles, and the other party will be reasonable to turn down the voice.