This is my second semester at college, and second semester with the same roommate. Last semester we had some issues when she was coming in at 1AM and slamming doors, and there was one time when I told her to take her phone call out of our room-since it was 11 PM and I was obviously trying to sleep. This semester, she has had her friends in our room all the time (and I never know they're going to be there) to watch movies on her laptop with the volume turned all the way up and no headphones. Along with that, she has continued to make phone calls late at night while I am trying to sleep-I almost never take calls in our room, and have even sat in the hallway so as not to disturb her during my calls during the day, so where is that same respect for me?! Finally, she is ALWAYS sleeping. On the weekends I wake up at 10 AM at the latest, and then have to sit in the dark and silence for about two hours while she continues to sleep, and she takes naps every weekday from about 2-4 PM. It's driving me insane! I can't be comfortable in my own room because I'm trying to be quiet and let her sleep...but she wouldn't need to sleep so late if she would get off the phone before 2 AM. My sister thinks it's because she's an only child and has never had to deal with sharing a living space with any one other than her parents, but I think anyone with half a sense of decency should know to use headphones to watch movies, not make phone calls in the middle of the night in a tiny room shared with someone else, and to understand that someone else does not have to let you sleep all day.
It's gotten to the point that I am starting to act out of spite, turning on music with no headphones while she's trying to nap and slamming the door behind me when leaving the room after seeing that she's having a movie night.
What do I do? I've tried to talk to her about some of this before and it just doesn't stick...plus, I don't feel like it's really polite to ask someone to sleep less.