One tuckered out little boy

The other night before I went to bed, I went in to check on each of the kids like I do every night. When I went into Mason's room, I heard him breathing but didn't see him in his bed. I looked down and saw him laying on his floor. It appears as though he wanted to keep his stuffed animals company and laid with them while he played his Nintendo DS. He must have dozed off and there he stayed.