Calvin and Hobbes by Bill Watterson for December 25, 1986
Calvin: Psst! Are you awake? Hobbes: Is it Christmas? It is! It is! Let's go wake Mom and Dad and open all our loot! Hobbes: Since it's Chirstmas, maybe we should let them sleep in a little. Calvin: That's long enough! Wake up! Wake up! It's Christmas! Dad: Quarter to 6. He let us sleep in this year.