insomnia
"I was prescribed 5mg ambien after 3 months of not getting more than 2-3 hours of sleep in each 24 hour period. I had tried benadryl, hydroxyzine, and Valium previously, all of which kept me wide awake. I took the 5mg right before bed, as instructed, and laid there awake all night. The next night I decided to try 1 1/2 (7.5 mg) as I keep reading horror stories about 10mg. I took it, waited about 10 minutes, then went to bed. It took me over an hour to fall asleep, but once I did, I'm thrilled to say I slept all night! Unfortunately even after a full night of sleep it was very hard to wake up. I'd wake up then doze back off. That happened several times for about an hour. Once I was able to wake up enough to get up, I was fine"