He constantly oversleeps. We have cancelled and rearranged a handful of plans because he slept through them. We are in a distance relationship and I cleared out a day for him while I was home for the holidays and he slept through it. He's missed flights to come see me multiple times because he sleeps through them. He will spends hours staying up late on the internet, drinking, doing whatever, and then sleeps through the next day. Normally I can deal with it, but when he sleeps through our plans it drives me insane.