Ambien Zombie

I have had a sleep problem like many of us, and I have taken both the IR (instant release) and CR (constant release) version Ambien.  I am currently taking the max dosage of either. The CR made me sleepy until about 1200, and the IR is supposed to wear off by the time I get up (0500). Last week, I dreamed that I took a walk down to the fitness center in my subdivision, which is about a mile and a half from my house. I woke one-day last week with mud all over my feet, not to mention some raw skin. My clothes where were I put them exactly night and my watch recorded a walk of 3.36 miles at 0100. So there are two choices here - clothes or sans clothes? I am happy that I was not arrested or taken in for sleepwalking at best or streaking at worst.  Either way, I would have been deposited at the hospital ER on a mental suspicion.