Comfortable?

I was talking with my sister Tammy on the phone this past Sunday, when I came across Chester sleeping like this on the couch.

How is this even comfortable?

I laughed so hard I woke him up, but he stayed in the same position!

Even until Dan came home, which he usually goes running for the door to greet him.

But I think he was just too comfortable/lazy to move. Or maybe he thought his leg might snap if he budged.