There's nothing worse than not being able to sleep at night! And to not be able to sleep for 3 nights? Oh my! I been taking Ambien for the past year. I was taking Ambien CR then switched to the generic form of regular Ambien. I tried not taking it and was not able to go to sleep. Honestly, I really don't care if it is habit forming or not. I would rather sleep at night than not sleep at all. Prior to taking Ambien I would just lay in bed trying to fall asleep and when I finally did, I would wake only an hour or two later. I was exhausted all of the time which made my depression worse. So, like I said, I would rather take the Ambien and sleep. Good night and pleasant dreams!