We are starting toilet training using your method from your book. Our son is 31.5 months old and this is our first attempt at toilet training him. For night sleeps, he is in a pull-up nappy. During the day, he is in just cotton underpants and shorts (it is Spring in Australia). My question relates to day sleeps, which he is still having. Should I put him in a pull-ups for the sleep or not? How should I handle accidents if not?