I've never seen a baby roll around as fast as he can. And now that he mastered the art of rolling he has decided to perfect the art of going from laying down to sitting and vice versa.
This morning after his nice and early 6am bottle, I put him in his crib on his stomach and left the room. He babbled to himself for a good 45 minutes and I went in there to see what the heck he was doing and he was sitting up staring at the wall. No wonder he wasn't falling asleep!