Z put up 10 minutes of fuss before retiring last night, but she slept solidly from 7:45pm to 6:00am. And she didn't wake me and Josh up until 6:20, opting to play with her aquarium (which, by the way, she has loved since she was 2 months old). When she finally shouted "Ma-Ma!" it was because, "I went poopy in my diaper. Poopy and pee-pee."
Hallelujah!