insomnia
"I too have had embarrassing experiences on Ambien.  While it helps me sleep, I often make phone calls or send nasty evil emails or texts in the middle of the night (3 or 4am) when I was sure I was asleep.  I woke up one morning with my hand bandaged.  Startled. I unwrapped my hand and noticed I had chopped off the end of my finger!  Luckily I had the wits about me (I guess) to nurse my wound.  I walked into the kitchen and realize I was cooking a ten course meal in the middle of the night.  One time I woke up at 5 in the morning to find myself flat on my back on the concrete deck behind my neighbor's house.  I did have my underwear on but it was October in Minnesota and it was a 40 degree night!  I felt great though!  Don't taunt Ambien!"