I love this...

The classic "sleep-on-my-stomach-with-my-tush-in-the-air."  I don't know exactly when it started.  It was about a couple of weeks ago when he started getting sick.  I think it made him feel better.  I'd put him in his crib on his back and he'd instantly flip over to his belly and tuck up his knees.   He's feeling better now, but still does it.  I love going into his room in the morning and seeing him like this:

Makes my day.  :)