Sleeping

All the articles and tips I read about putting toddlers in a bed instead of a crib automatically paint a picture of putting them to bed and leaving the door open for them to get up out of bed. I havent done this because for one I don't want my little one getting up and wondering the house when everyone is asleep and two we have a monitor on her.

Now my actual dilemma is that she doesn't want to go to bed alone. She cries and is so sad that she is by herself. She was fine up until a couple weeks ago. My husband thinks it changed when we were watching a movie and she got scared. I think it started before that. How are others doing bedtime and what kind of problems have come up?