I have been taking Ambien CR for 2 months - almost nightly. I think it does help me sleep. Or at least if I don't sleep, I don't remember not sleeping. I do wake up the morning after with headaches. I have a lot of headaches anyway... so that is not that bothersome to me, unless they get to the migraine point. I feel like it affects my memory the next day. Also for about 2-3 hours after taking it, my husband and son say that I am very talkative (which I don't remember) I have had 15 min conversations with my son and not remember. I have sent text messages and not remember. I have not been told that I have done anything else. But that is concerning to me. If I didn't have any other options for sleep meds, I probably would stick to it, but I am going to try something else that has less side effects.