Ugh Seroquel

I read somewhere online that the drowsiness from Seroquel will normally set in after about 4 hours. So I take it at 7 and we go to dinner. By 9pm I am out of it, ready to sleep. I then sleep until only 3am and am unable to return to sleep. So bizarre. Can't figure out how to time it. Maybe I need immediate release. Add to the list of things to discuss with the doctor....