Within the past 4 months I have tried the folllowing for my insomnia---Alprazolam, Halcion, Ambien, Trazodone, Benedryl, Valerian, Excedrin PM, and Clonazepam. Even when I doubled up and took Ambein along with a benzo. Nothing would keep me asleep for more than an hour or two. I am currently weaning off of the Clonazepam because I don't want to be addicted to a benzo and I've been on it for 3 months. I'm ready to call my doc and see what else can be tried. (he pretty much gave up on me, said I was a complete puzzle)
Good luck.