Last night we started training LO to fall asleep in his crib instead of our arms. Anyway, we put him down drowsy when we normally would have rocked him and he did sleep eventually, but only after over an hour of crawling/climbing around his crib, talking to himself and so forth, pushing his fall-asleep time to nearly 11pm.

Usually he wakes up around 7, which seems healthy, but after staying up so late, today he slept till after 9. I wasn't sure whether to wake him or what. This must happen with all training methods, right? What do people do?