Ah, how could I offer up Christmas songs without providing the song that parents all over the world use as a way to guilt their children into behaving? Frankly, I've always had issue with the idea that Santa seemed to have as much omniscience as the Lord Himself - he knows when you're sleeping, awake, good or bad... I believe it was explained to me like this: Santa gets his info from God.
Well, believe it how you like. For me, there is hands-down no better version of this song than from the Boss himself, Bruce Springsteen: