The Night Wanderer

Sometime during the night last night, Peter woke up crying.  Mike got up out of bed, made his way over to the boys' bedroom, and crawled in bed with Peter to calm him down.  I didn't wake up with either Peter's crying or with Mike getting up, which is a little strange.  What is more strange about this story though, and actually quite hilarious, is that Mike didn't wake up either.  Actually, he woke up in Peter's bed at some point later on in the night, not sure exactly why he was there, only knowing he'd been gone long enough for his spot in our bed to have grown cold...