I consider myself lucky then. I have been taking them for about seven years and they still work for me. But my situation is that I can sleep, but I don't get a restful sleep. The ambien gives me a more restful sleep. I take generic too. I hope that you find something to help you sleep. I also use meditation and that helps. There are a few tips that might help. Like not eating before you go to sleep, keep your bedroom dark, don't watch tv in bed (thought when I do, I always fall asleep on it, so I don't know where they get that one from), reading before you go to bed is discouraged too. I don't know if any of these will help, but I thought that I would throw them out there. Probably could throw them out completely, lol... But you never know.
Good luck, and keep posting and let us know how you are doing with sleep. Have you read any books on sleep issues? You might want to try that.
Moderator-Depression and fibromyalgia
fibromyalgia, Chronic fatigue, depression, allergies