Hi, I have had chronic sleep problems for several years, a lot to do with the other issues I have been dealing with. I started on Zopiclone 3 years ago on half a tablet a night. It wasnt too long before I was needing one tablet, then one and a half and then 2! At one time I was taking 2 zopiclone and a diazepam . I must say though, at no tiime did I feel drowsy, or seem to have any side effects the following day. The dependence I was obviously developing was of great concern to me though. Today, I have managed to wean myself down to quarter of a tablet a night. I really dont know it that is mind over matter, but I dont seem to be able to sleep without it. I have tried every other thing you can possibly think of to try and get to sleep and stay asleep, and will contiinue to do so. Zopiclone does seem to be very effective for me, but does seem to promote dependency. Good luck.