I was prescribed Ambien a year and a half ago to get me to sleep and to keep me asleep. It was effective and I planned to stay on it, but then I was prescribed Seroquel at night as well. Pdoc said I might not need both for sleep. I tried cutting back on the Ambien but lay awake for hours again. I went back on it and it took a long time to realize I was sleepwalking and sleep eating. I don't know how I ever found my way upstairs to bed. I split the Ambien. No problems with withdrawal. And over a short time, I've reduced myself to a microscopic piece. I want to give that up too, but when I have before, I have trouble falling asleep again. I've decided it must be an extremely potent drug.......I want to be able to do away with it entirely.