Sirius would have replied, but he was already asleep.
The next thing he was aware of was opening his eyes to the weak morning light. He lay there, just enjoying the warmth of the bed and the feel of Remus beside him when he suddenly realised what day it was. He propped himself up and leaned over Remus. "Moony. Hey, Moony. It's Christmas! Wake up! Presents, man, presents!"