Trazodone does nothing for me, not even 400 mg. Ambien caused trouble. Keep trying until you find a doctor who will prescribe Xanax. I take 2 mg of Xanax about once a week for sleep, but my doctor knows I'm careful and I don't abuse it. On rare occasions, I may take it two nights in a row, but not more than that even if it means lying awake for what seems like years. Although I am petite, I have always needed elephantine doses of everything. I finally stopped trying to sleep every night, so only slept every other night. Now I'm at a point where I may only sleep every third night. It's a horrible situation, but I don't seem to have any sleep deprivation symptoms. When I simply MUST sleep, I take the Xanax. I have read very recently that the FDA may ease some of their absurd restrictions on opiates and other drugs like Xanax, but it always takes them years to act on anything.