I was taking ambien. It helped me sleep, but took a couple of hrs to kick in and I slept for only a couple of hrs after. Dr. switched me to restoril. I take it at 7:00 to get a little drowsy by 10:00 or so, but I seem to not sleep much and when I do I have wild dreams. Pretty much like not taking anything at all. Does it take awhile for the ambien to get out of my system, insomia rebound, before the restoril will work? I was wondering if the restoril is not a drug that will help me at all and I should do something different again.