Insomnia Queen

[AXJules]

I've slept 3 and a half hours in 4 days.

Here's some background:
My roommate, whom I live in the same room with at my sorority house, used to be my really close friend until she went crazy a month ago. (One minute we're at the mall, 2 secs later she's yelling at me and saying how since I will never have as much money as her, I act like a spoiled brat to compensate. Then when she tripped in the parking lot, she said it was her attempt to kill herself and she blamed it on me.)
So we don't talk. At all. She doesn't go to class EVER so our favorite game to play goes like this:
12:30- Julie goes to bed.
1 am- PBR (psychobitch roommate) turns on lights
1:01- Julie turns them off.
1:01 and 10 secs- PBR turns on lights, tv, and stereo (Linkin Park, no less) and keeps everything on BLASTING until 5 am.
This is what we've done for the past month, except I don't do it back to her, I just lie in bed and pray that God will take me in my sleep.
Soooooooooooooooooooooo,
At the risk of sounding like a drug addict, SOMEONE PLEASE TELL ME SOMETHING I CAN TAKE TO KNOCK MYSELF OUT!!!! Over the counter or something you've made up that works, please help.