Sleeping without a nappy...what age?

make sure she goes to the bathroom before bed..whether she thinks she needs to or not..see if that helps..i would say try to go without the pull up and see what happens..i've known quite a few kids to just get used to it being there and subconciously knowing they can go in it...my niece was trained before she was 2..and was only kep in pullups a couple months after as a precaution..