My roommate play everything on full volume and sleep late

Currently studying in delhi university and rented a room with my classmate he never uses earphone whenever we study or he do any thing in phone I told him many time to wear earphone he never listenes and told me that you have weared earphone then why voice is coming in your ears And i want to sleep at 12.00am so.i can Go to ground on morning but he never closes tubelight. My whole sleep patern was fuked up. Please help what should i do.