I also have always had a difficult time going to sleep, mainly because of the nightmares. I used to take trazadone that was prescribed but after the last time I overdosed on it, I stopped taking it and don't take any prescriptions to sleep anymore. I just use Simply Sleep, it's from the makers of Tylenol PM, and it doesn't have the pain reliever. I've heard it has the same ingredient as Benadryl, but it helps me fall asleep and usually I can stay sleeping through the night and wake up feeling refreshed.