Tent Sleeping?

Collin continues to LOVE sleeping on the top bunk bed.  He still does not like having to go to bed but does not mind the part about getting into bed because he gets to climb to the top bunk.  The other night, he wanted to sleep in his tent.  The tent is too tall to put on the bottom bed so I put it on the top.  This is what he looked like an hour later when we went to check on him before going to bed: