So, DD started co-sleeping with me at about 3 weeks (which is the same time she started STTN about 5-6 hours), then at 9 weeks I started transferring her to sleeping in her rock-n-play, but she has to be swaddled or she won't sleep. She still STTN about 7-9 hours. I was planning on just letting her decide when she's ready to let it go, but I'm just wondering about how long that'll be? Also, about when did you transfer to the crib? I haven't gotten the nerve to try it yet...I just feel more comfortable with her right next to me. She'll be 3 months on the 25th.