Last night was probably our best night so far. Brad and I only had to get up once each time with Liam, who slept in 3-hour stretches. It was divine.
The secret, I'm convinced, is the bedtime routine we've been working on. We try to keep him awake after dinner, bathe him (kid loves his bath!) around 8:30, turn on the red lights after bathtime, feed him, and put him down at 9. He's usually out immediately. Than Brad feeds and changes him at 12, and brings him upstairs, where he sleeps in the Pack N Play. then I'm up with him at 3:30ish, and he sleeps until early morning.