We moved dd (21 months) into a toddler bed a couple of weeks ago. It went really smoothly and until recently for both naps and bedtime she would go to bed and play in her room for a while before getting herself into bed and going to sleep.
However, a few days ago she worked out that she could get out of her room and since then it's all gone wrong. At first she was upset when she came out and we weren't there so we spent a while comforting her then kept putting her back to bed when she got out, staying on the landing so we were outside her room when she came out. It took a while the first night but eventually she went to sleep.
Now it's just become a game to her. At naptime today we spent over an hour putting her back every time she came out, but there was no progress and eventually we gave up as we had friends over and it was getting ridiculous. And so far tonight DH has spent 40 mins upstairs putting her back, even though she has only had 10 mins sleep in the car this afternoon, whereas she's been used to getting a couple of hours sleep in the day.
She's not getting upset, it's just backwards and forwards, up and down.
Is there any other approach we can use? Do we just have to stick with it? How long before she gets the message?