"i have been using ambien cr for 3 years. i love it. i make sure to take it on an empty stomach and in 20-30 minutes i am asleep.  the only things i would warn about is: make sure you have at least 8 hours of sleep time, it doesn&#039;t work well if you eat before taking the pill, and i have done some things i have no memory of doing. my husband has tried ambien cr and said it doesn&#039;t work on him. i would recommend ambien cr to anyone who has trouble falling and staying asleep."