insomnia
"I have only been taking Ambien for 3 months or so.  I too have insomnia.  I can get to sleep but wake up and can't get back to sleep.  My experience with Ambien has been crazy.  I have had a phone conversation and made plans to go to lunch with a friend, and when she called the next day to see if we were still on, I had no memory of our conversation.  I have cooked scrambled egg/cheese breakfast at 11pm and put it away for breakfast the next day.  Last night, however, was the scariest.  I vaguely remember sweeping up hair, so I looked in the garbage this morning and was relieved to not find any hair. I passed it off as a dream.  Then I took a good look in the mirror, my bangs on the left side are now only 2" long.  How embarrassing!"