Each child is different and learns at their own time. I do agree with the night time diapers just until there are no accidents at night. Some children don't master night time until they are much older and the use of pull ups is helpful. Congrats on the potty training! I too have a three year old and I know how difficult it can be to potty train. My eldest, a boy and her were the more difficult of the bunch. My middle child, a girl was potty trained early and never had an accident.