Strange sleeping habits of the young

This boy just does not want to sleep in his own bed at night. I suspect the crib/toddler bed mattress has outlived it's life span now that it's been in use for 7 years. I keep leading him back to his bed only to have him find even new and and more strange places to sleep:



If you can't tell, that's under his brother's bed. He's got a crochet pouch around his wrist and out of sight, his crocheted  'baby' (actually more of a little troll doll) under his head for a pillow and he's really wedged in there.