I've never sleep-walked, but I had a friend who did. It was during a retreat when I was about 12 years old. We were sleeping in an old church, and I heard somebody banging on the wall outside of the room. Somehow, nobody else woke up from it. I peeked outside the door and saw my friend at the end of the hallway, standing there and "staring" at me (well, I assume his eyes were closed). Like completely motionless. Then he started charging down the hallway towards me, then sat down on the floor and, I guess, woke up about 10' away. Freakin' weird.