I am going through menopause and have had a lot of trouble with insomnia. I asked my Dr. for Lunesta and was using that without side effects until my insurance co said they wanted me to try Ambien instead. It put me to sleep faster and I did stay asleep but never woke up feeling rested. My husband said we had conversations I don't remember having. The worst though was the dizziness and feelings of anxiety I experienced the next day. I decided I wanted to stop taking it because of that and experienced a horrible night last night with my head swiming and unable to sleep the entire night. I am going back on Lunesta.