Hi Matt!
Im' sorry to hear about it. I think i can help you. In my
opinion you should first try to talk with your flatmates. Just tell them
them that you have a headache and you need a silence in your room. But
if this doesn't help, you should call your close friend and ask him for
only one night in his/her house. You can also call the police and tell
them truth. They will help you for sure. Or... if this is your house you
can just entreat the guests. They can't do nothing with it, but i think
your flatmates will be offened and sad. I really hope i helped you. I
think those methods should help you maybe more or just a little. If you
still needed my help, just write back and tell me more about your
problem. I wish you a good luck with your noisy flatmates!
Best wishes, ........