FWIW, you're on Saphris and Seroquel. Both are pretty sedating. But I thought I'd mention that decreased need for sleep is only one of the possible symptoms of mania, and that symptom does not need to be present. You also don't necessarily have to stay up for several days in a row.

And btw, I get pretty restless too when I'm hypo/manic, so my sleep quality is poor even when I get 2-4 hrs of sleep.

You should also consider how much sleep you normally get because "decreased need for sleep" is all relative. For example, if you normally get 10 hrs a night, but you're getting 4 hrs, that's a decreased need for sleep. But if you normally get 6 hrs and you get 5.5 hrs of sleep, it's debatable if that's a "decreased need for sleep".

Hope that helps!