I take 400mg of Seroquel and like Mrs. mania I sleep ten hours and I have a tiny bit of caffeine to come out of it in the morning. The sleep is the greatest. There are some issues with Seroquel though. I came off it last March because it caused me to be pre-diabetic and my triglycerides went sky high. I went instantly into a mixed episode. There are some people that gain weight. When I came off it I dropped 30 lbs. I tried other APs, long story ended up back on Seroquel, have to be. My weight has maintained. I take Metformin for the pre-diabetes and fish oil to keep my triglycerides down. This seems to be the only med that keeps me close to stable and I can sleep. If I didn't take it I would only sleep 2-3 hours a night.