The one who never sleeps when he is supposed to, apparently never wakes when we need him too either. Upon trying to wake him to go out to dinner on time (I would not normally do this, but the plans were already made), we hear:
"NO!!! I am REALLY REALLY TIRED! YOU CANNOT COME IN HERE!" Followed by a door slam.
He wakes like his mama. I can't wait till the teenage years.