Sleep-walking

Two of our kids walk and talk in their sleep every once in a while. For some reason, being sick seems to make this occur more frequently. Night before last I heard someone in the kitchen, and came out to find Jonathan standing in front of the open bread drawer. I said, "Jonathan, what are you doing?" He looked up at me, confused, but said nothing. I looked down and saw that he was about to put his wet pull-up into the bread drawer! I grabbed it from him and put it in the garbage and told him I'd go get him a clean one.

I quietly sneaked into Nan's room - the pull-ups are in her closet for some reason - and grabbed a clean pull-up. I closed the door, and then heard Natalie yelling, "Mom! Mom!"

I opened the door and she was sitting up in bed. I said, "It's all right, I was just getting Jonathan a pull-up." She looked at me and said, "No, Mom, he really needs some food."

Neither of them remembered any of this the next morning.

I wonder if sleep-walking is hereditary. I used to do it all the time when I was a kid, and even after we were married. I don't walk anymore, but do occasionally mumble about nonsense. Kevin thinks it's funny to ask me questions, because I can't really think of the answers and I get all irritated. Then I wake up completely ticked off at him and have no idea why.

Any other sleep-walkers/talkers out there?