I have been known to sleep at least 4 hours a night even when full-blown manic. Then there are times like I've had in recent weeks when I don't sleep at all some nights, and I've been hypomanic off and on for the past several months. However, I'm less so than when I saw my pdoc last month, so maybe I'll be able to talk him out of the increased dose of Zyprexa he was threatening me with. I say that with tongue in cheek, but he did propose an increase and I promptly refused. I'm on a small dose but I'm afraid I'd start gaining weight again if I were to take more. In the meantime, it seems like I sleep either 8-9 hours or less than 4, if that. You'd think I was on enough meds to choke a horse. Lol.