insomnia
"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'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't work on him. I would recommend Ambien CR to anyone who has trouble falling and staying asleep."