I would wake up 2 hours earlier than my normal time...in fact, I finished editing a book (my first non fiction book) with this extra time. It was pretty thrilling.
Now it's settled in so that I get to bed at midnight and up at 7 or 7:30. But it's so easy to wake up now. The hard part is my cat saying, "See how cold and rainy it is? Don't you want to sleep in?"
But my sleeping in times are less, too. More energy overall.