(The Huffington Post) – I woke up in the middle of the night one night last year, and my boyfriend was missing from his side of the bed. I fell back asleep, assuming he was just in the bathroom. A couple hours later, his side was still empty. I looked in the bathroom — no one there. I checked the kitchen. Nothing.
The only room left to check in the apartment was my roommate’s. She was gone for the night, so I peeked in. Sure enough, there he was, curled up in the fetal position in her bed.
“What are you doing?” I asked.
“What do you mean what I’m doing?” He seemed confused (and irritated) as to why I was waking him up. He quickly came to his senses and realized he wasn’t in the right room — or bed — and had no recollection of getting there.
Sleepwalking is a type of parasomnia, a group of “behaviors that occur in sleep that we typically wouldn’t expect,” said Dr. Charlene Gamaldo, medical director of the Johns Hopkins Center for Sleep and fellow of the American Academy of Sleep Medicine.