Drew's "New" Night Time Routine

For the past few days Drew has begun a new routine. We put him in bed, say our prayers, tell a story etc......& we leave for him to fall asleep. After a few minutes, we hear him moving around. We've watched him take all his bedding, animals, a few cars & make a pallet on the floor. He thinks it's the neatest thing. We just let him fall asleep there & put him back in bed after a while. (Side Note: they sleep in mats on the floor at daycare & I wonder if he really likes replicating that at home).