"i have been on all kinds of benzodiazepines for sleep due to anxiety and periods of alcohol withdrawal.  seroquel has been a life saver. i am 220 lbs and 6 foot tall and first took 200 mg and slept twelve hours. i could of had major surgery and not awoke!  i have found 100 mgs to be very effective where as trazodone is about a third as effective. seroquel is a great tool for sleep, and especially for those that are getting benzos or other medicines!"