"Come out with us!"
"Stay up! It's fun."
"Why are you in bed so early?!"
"You're no fun."
You know me! I haven't changed. I have work and workouts to do tomorrow.
Early to bed = Early to Rise.
I do the same thing each of the other 364 days of the year. Why are you surprised today?
Enjoy your New Year's Eve. I'll enjoy my lack of a hangover on New Year's Day.