When you cannot fall asleep because someone is sleeping over, hogging the covers or thrashing wildly. You may even really love this person creating the insomnia but the fact still remains: you need your sleep, especially before a big test! Ways to avoid: tell them to buy a bigger bed, push them off of the bed, or make an excuse as to why they or you should not sleep over.
Paris Hilton: OMG Nicole I didn't sleep at all last night!
Nicole Richie: Were you: out, making another sex tape, having a fake career, partying, or being your usual slutty self?
Paris: No, this was after that I had Boysomnia and couldn't get a wink of sleep.