I take 550 mg of Seroquel XR at night along with Tegretol XR. That dose is just as much for moodstabilization as sleep, but believe it or not, sometimes I don't get tired enough even from the 550 mg at night and have to take regular Seroquel "as needed" for either help getting to sleep or calming oncoming hypo/manic symptoms. In those cases, I usually take 50 mg Seroquel on top of my Seroquel XR. That usually works. Occasionally, I take Ativan instead, but I know that's not the better choice.

I almost always take my 550 mg Seroquel XR at 7 pm. That usually makes me tired by 9 to 11 pm, depending on various factors. I usually wake up around 6:45 am. Sometimes that's easy, other times a little hard. Once I'm up, I'm not tired enough to sleep anymore, but also very far from jumping on a bike. My "normal" energy kucks in around 9:30/10:00 am.

If I don't fall asleep until after 2 am, I know my morning will be rough. In those cases, getting up at 6:45 am is often not possible, but I only sleep about 5 or 6 hours, but wake up groggy. On weekends I sleep a bit more, but not much more.

If I'm taking "as needed" extra Seroquel for developing mania, my sleep is more normalized than anything else. Only if my mood/energy dips do I have hypersomnia. Then my base Seroquel XR dose goes down.

I complained a lot about Seroquel/Seroquel XR sedation in the beginning. It took time, but I've adjusted. I have to keep a rigid schedule, though. Late nights out can make me suffer, especially if I take my evening meds late.