We've had a few issues with DD aged 2+3 coming into our room at night. We're about to start a reward chart for just a couple of things (like brushing teeth, washing hands) and thought we would add 'staying in bed'. But to reinforce this, I wondered if anyone had recommendations for an age appropriate book that might help, something along the lines of 'a big girls room' etc. We've had a lot of success with books in the past when having the usual toddler issues, such as biting and having a bath etc, so I'm hopeful that the right kind of book might help.
TIA for any advice/ help.