My 23 month old had previously been a great sleeper - we put her down around 7/7:30pm and she wakes up around 6:30. She'd make a couple of whimpers throughout the night but we hadn't had to go calm her in a very long time.

Last weekend we were out of town and she refused to sleep in the pack and play, so we let her sleep with us. And now, 5 days later she still just does NOT want to sleep in her crib by herself. Last night we finally just tried to let her CIO / realize we aren't doing this anymore and she screamed for over an hour before I finally went in and let her sleep with me.

Tips? Ideas? HELP! We have never let her sleep with us at home and I feel like this is a slippery slope that I don't want to be on.