I've lived in an apartment with my two housemates for 10 months. One housemate is not very problematic. The other, however, has become very noisy within the past few months.
Ever since summer has started, she has kept her door open during the night to keep her room cool. The issue comes with her being very loud during the night in her room, either streaming video games or talking on the phone (on speakers mode, mind you) with someone. She does this very late at night, usually from the hours of 9 PM to 2 AM, and it has been affecting my sleep schedule because of how hard it is for me to fall asleep around loud talking/yelling.
On top of this, she also has her makeup and a big mirror in the hallway right outside of my room, which she sits in front of and talks to people or listening to a video on loud volumes, again using the phone's speakers. Quite literally, the mirror is against the wall that is 2 inches away from the door to my room.
I've asked her politely several times to be more quiet at night. However, I'm getting annoyed that I have to keep asking her on a weekly basis. I don't mind if she is streaming or on the phone, as long as she isn't being loud. I'm not very sure where to take it from here. Some ideas I've thought of:
1. Talk to the apartment manager about it. I don't know how much power the manager has over the noise levels inside of each individual apartment, or even if they can impose any sort of punishment at all. I almost feel as if I'd be wasting the manager's time with something that is more of a personal problem.
2. Soundproof the door to my room. This doesn't seem very worth it, since soundproofing can get expensive. I also am considering finding a new apartment after my 12-month lease is up, so spending the money on something that will really only be used for a couple of months doesn't seem very worth it in my opinion.
3. Just put up with it. Like I said above, I will most likely be moving out after my lease is up to find a more quiet place to live if the noise levels do not go down. So, I may as well just keep quiet and put up with it and give up.
Neither of these seem like very good ideas to me. How can I ask her to be a bit quieter?
Some additional points:
My other housemate does not seem to mind her being loud at night. He is usually also awake late at night, but he is a lot more quiet. They have shared an apartment together for a year before I came into the picture, so I would have expected him to say something in the past if he had any problems.
I've also considered using earplugs, but I'm worried about missing my alarm in the morning because I can't hear it.
Neighbors have called the police on her for noise complaints in the past. This did not phase her though, and she blamed the neighbors for being too sensitive about noise.