DS, just turned 3, potty trained very quickly and was happily wearing pull ups at night and during day nap. However, he's now started calling for us to take him to the loo in the early hours rather than do it in his pull up, as he used to. What do I do? He doesn't have a drink after around 6pm (bed at 7pm) - and some nights he's dry but other nights his pull up has leaked and he's soaking or he wants to get up and go to the loo. Help!