Just wanted to update...
She went to bed with undies on. Woke up at midnight and raced to the loo but just didn't get there in time ( so impressed that she woke with the full bladder sensation and knew what to do!!). She had an accident at 4am while asleep but was quite upset about it. She's not had another accident since and is loving wearing undies and going to the toilet. She's now decided most of the time she can go it alone. LOL

Will let you know how we have gone at the end of the weekend