I started my Ambien back a week after my gastric sleeve. And for that week every night when I would go to sleep, I would get up and sleepwalk up and down the stairs. Draw on the walls and the mirrors with red lipstick and I seen a little bitty, midget, looking trolls in the house.my doctor took me off of it quick. He said yeah it can have those kind of side effects so I guess it affects everyone different.