i know it's gonna be a stressful/insomnia night if the 1/2 doesn't work within an hour and then i'm taking another 1/2….it's when a 50mg. seroquel doesn't work and i'm really manic that i'm asking what i can add to the mix. occasionally after about 4 hrs. of no sleep i'll add an ambien just to put me to sleep finally but am trashed the following day and that's why i'm wanting to know if adding a benzo or over-the-counter sleep med will knock me out in combination with seroquel which usually works like a charm when most of the time i'm `normal'.