My 4 month old is still in rock n play.
I don't know how to work him into crib not because of crib but because he is sharing a room with my 2 year old and I just can't do it until he is sleeping through the night better - so he is in our room in RNP yet.
I feel like I shoudl have him in his crib by now - First son was in crib by 3 months.
Anybody else?