We tried to force the issue with both kids. Our first we kept in a rock'n'play (all of them recalled since then) for way too long, and then almost as soon as we

We tried to force the issue with both kids. Our first we kept in a rock'n'play (all of them recalled since then) for way too long, and then almost as soon as we put her in the crib she was on her belly. Our second we used a Snoo, which helped, but she didn't actually get solid sleep until the day we moved her to her crib. We didn't even try to back sleep her at that point, she wanted to be on her belly so she was. That kid sleep trained herself, which was amazing.