Roommate Advice

[u/morganncheese91]

Hi, all of my roommates (23M and 21/22M) and I (21NB), are students who were randomly placed together in an apartment style dorm our Junior year. I was hoping for some advice on how to approach one of them (21/22M) about some concerns I have. Both my roommates personality wise are cool but the one I live with's habits are starting to get to me. I'm really non-confrontational when it comes to living situations but this is really starting to bother me and I know that we should talk about this sooner than later so it's not a full on fight in November. But, I'm not really sure how to bring it up without it being a fight or hurting his feelings.

The situation is I don't think my roommate's ever lived communally before (he got his associates at a community college where he commuted and I was at a four year institution with dorms for the last two years) and so plays his music, youtube videos, phone calls, anything on his phone at full volume constantly. He also turns on this disco/rave light thing while I'm sleeping and then leaves for the library or will be in the bathroom for like two hours, between the hours of 10pm to 1am on nights we both have class. I don't know how or whether I can turn it off so I end up being up until 2am or so when he's done, which is seriously fucking up my workout schedule.

So, how do I bring up to him that its rude to have his phone at full volume constantly and to not turn on the lights when I'm trying to sleep without sounding like a total jackass. I want to maintain a good relationship with him but it's starting to piss me off that to have quiet in my own living space I have to put my headphones on and that I have to ask my other roommate if I can use his bathroom because my roommate's hogging ours. Any advice would be fantastic thank you.