I was given trazadone by my physician, to help me sleep. I slept 0, then 4-hours, then about6 hours, then back to 2 hours, then 7 hours. As it was not effective at 50 mg. my doctor changed it, after only 8 days to 50 mg quetiapine, it did not work at all last nite, which is supposedle better, or does it just depend on me. 0