I've been in your situation recently. Rather stupidly went on a night out on Monday, and had a presentation to give on Tuesday morning at 10. Get back at 3am, discover I left my loft window wide open and my room is soaked, along with my DJ CD decks. Clean up, try to fall asleep but can't. Eventually fall asleep at about 6am, get up again at 8am for my presentation. It went pretty well considering!