My ds is just over 3. Until 2 weeks ago we were getting regular day time accidents. In the last two weeks he has stayed clean and dry apart from one accident during the day and he has been totally clean and dry at night. He happily gets himself up to go to the potty in the pitch dark at night! He wears pants all day now but a nappy at night. Do you think I should drop the nightime nappy yet or not?