I hope you get some great responses. I'm afraid I'm hooped on this topic, but could I make a suggestion? Please consider fleshing out your medical circumstances...a bit. If you feel secure enough here to do so, would you explain why you have been using Ambien in the first place, and what had worked for a while previously and then stopped working? And do you have any insight as to the decline in your sleep health from whatever took place months/years ago to now that might have resulted in your apparent regression into sleepless-unless-I-take-Ambien? Are there weighty factors that preclude 'natural' onset of sustainment of sleep for you that might just make this a swap of Problem B for Problem A?