They will consciously turn off the music. After all, they also know that the dormitory is a big group and everyone needs to understand each other. Just like if someone sleeps in our dormitory, we will consciously minimize the sound. However, sometimes I don't notice someone sleeping, such as me. There are so many dolls on the bed that many people don't know that I am sleeping. Either I listen to music and sleep, or I sit up and tell them I'm going to sleep.
Don't feel guilty, because they are embarrassed at this time, every time.
Everyone has a different schedule. Sometimes the dormitory is a little excited and can't sleep, so it will chirp. If a person suddenly yells, go to bed. Then the others consciously stopped talking. Sleep is the most important thing at night.
Besides, you didn't speak this time, and others will pay attention to it next time.