Sleepwalking?

I'm starting to think Elijah might be a sleepwalker...

Occasionally he will get up in the middle of the night and come stumbling into our room, and we'll lead him back into his room and back into bed and he'll conk right out again without a problem. Now this is no big deal and he may be awake and just needs to be put back down again, but it's what happened the other night that really makes me wonder...

From my point of view: I wake up because I hear Elijah crying and I look and see that Chris is up and is already picking him up and bringing him back to bed. What a great daddy he is, responding to his son's cries so quickly.

From Chris' point of view: I wake up needing to go to the bathroom. I get up and walk around the bed and see a pile of Courtney's clothes on the floor. Trying not to be annoyed that she has once again not put her clothes in the laundry basket, I begin to step over the pile on my way to the bathroom. However, my foot grazes the top of the pile and all of a sudden it starts whimpering. That's when I realize this pile of clothes is actually Elijah curled up with his blankie in the middle of our bedroom floor, sleeping. At least he was sleeping until I kicked him in the head and woke him up.

How did he come into our room and fall asleep on the floor without either of us noticing? Now he definitely has a gate up outside his door every night, who knows where he would go next!