Recently, my son started sleeping on the bottom half of his trundle bed, he needed a place to spread out his stuff, he told me.
He likes to sleep next to his:
Swiss Army Knife, DS, the slingshot that he and his dad made, Eminem CD's (Yes I let my ten year old boy listen to a filthy-mouthed rapper, his father and sisters do so why shouldn't he), the Wrecking Ball (his duck tape cudgel) his favorite t-shirt from our local farm league baseball team and a book.
Did you notice that he has no pillow case? He's preparing for life in the frat house....hahahaaa!