Here he is, demonstrating how he's going to sleep:
He fell out once the first night. I didn't hear the 'thud,' but heard him crying. When I got to his room, there was a little bundle of blankets on the floor, squirming around. He only fell out one other time since then.
When he was sick last weekend, he never left the bed, just sat on the edge and called for us until we went to see what was up.
And then a few mornings ago, I woke up to hear him whining "bummmmmm....... bummmmmmm" and thought 'what the heck?" When I got in there, again, he was sitting on the edge, and soaked.
The night before however, his Daddy found him reading a story in the hallway at three in the morning.... so the times he does need us, he doesn't leave the bed, but when he doesn't need us, he gets out!!