I sometimes sleep for 10-12 hours but feel horrible after, I've been told it's possible to sleep too much. When I'm manic though, I'm one of those 2 hours a night people. And even then, it's only because I force myself to. When I'm too manic to care, I might not sleep at all.

My last big depression was during the run of a play I was in, and I was getting home at midnight and I'd stay up until 1, but I would sleep until 3 or 4 in the afternoon.

When I'm in school and I'm actually going to classes, I don't have time to sleep 10-12 hours a night. I'll get 7 or 8 and that actually feels much better than 10 or 12.

So summary, I don't really know why I'm posting in here except to say I'm opposite - huge amounts of sleep make me feel worse, except when I'm depressed, because then I feel worse anyway, and when I'm manic I go on 2 hours or less.