DD has learnt how to sit up and is trying to crawl. Until now she has been a great sleeper, put her down and walk out she'd grizzle for a few minutes and fall asleep.
But since she's learnt how to sit up she just won't do it! It doesn't matter how tired she is, she'll just keep sitting up and rolling around. She doesn't cry or scream, but she won't lay down and sleep. Its taking up to an hour to get her asleep for a nap. I've tried leaving her, I've tried going in and laying her down every time she sits up, I've tried tucking her in tightly. Nothing has worked. Any tips?