It happened!! 8 hours of sleep!!!
I was wiped after our Sydney trip and in bed before 9. Then I finished the episode of Glee I had been watching the night before, and started a new one before I knew I was just too tired.
I heard The Bubby stirring and decided to wait and see if she would settle herself, rather than getting up to feed her. When she started to chatter, I decided it would be better to get up and feed her and go back to sleep rather than have her wake The Toddler (the night before she stirred at 4am but I waited and she went back to sleep for two hours).
It was 6:30am.
That said, I didn't feel like a whole new person or anything - I guess I'll always just wake up feeling a little tired.