My 5 year old DS started school in September. He's been potty trained since the age of 3 but he's still in pull-ups at night and if he doesn't wear one he just wets the bed. My 3 year old DD has been trained since she was 2 and she has been dry both day and night ever since. How can I get my DS to be dry at night? I've tried limiting his drinks after a certain time before bed, and I've tried waking him for a wee too and still no luck. I praise him on the times when he does wake up dry. Can this be normal at his age?