Camping...McCarthy style

Is it normal for a 4 year old boy to prefer to sleep on a pile of pillows at the foot of his bed with a canopy of beach towels over his head than to sleep in his bed? I find it odd and frustrating, and having never been a 4 year old boy, I just can't relate. This has been going on for over two weeks now and I am over it. Particularly since the top of the "tent" (e.g., one edge of the beach towels) is tucked into his underwear drawer and he fusses at me every single morning for wrecking his tent when I open the drawer to pick out his clothes. But it is one of those things that just isn't worth doing battle over. Another night in the tent it is....