hmmm... sleep? what is this crazy thing you speak of.. heheh..
I get the same thing, and so do many of my bipolar friends, therefore I think its absolutely common to depression AND mania AND any other mental disorder (excepting narcolepsy of course

)
It sucks. They say the best thing to do is to get up and do something, but that usually just wakes me up more. I had a bad sleep last night so I know how you feel.