That is, until he realized he could stand up in bed...
What used to take less than 60 seconds now takes roughly 60 minutes! We battle it out. I wrap him up, he rolls over and is standing by the time I'm out the door. He babbles, stomps his baby feet on the squishy mattress and eventually starts to yell.
I began waiting longer and longer before I would go in. I kept telling myself he would plop back down when he was tired and go to sleep. In an effort to keep myself out of the room I took a shower. As I stepped out of the shower my fingers were crossed that he went to sleep. Then I heard a long, loud wail. Still awake and still standing.
We're figuring this out and I'm trying to keep him up longer so that he'll actually want to go to sleep when I put him down. Today was better than yesterday, but who knows what tomorrow holds.