My brother sleepwalks, but only in strange environments - he's fine at home. We'd visit family or go on a trip, and you could forget finding his clothes in funny places - we'd usually find him in weird places, like the bathtub, or a closet, or under my parent's bed... once he was curled up on top of the washer/dryer in my grandparent's basement.
It was cute when he was little, less so when he was a teenager. I hear he still gets up at night on trips, but his wife's usually able to steer him back into bed.