Our 3.5 year old has been fully day-time potty trained since 25 months old. He NEVER has accidents while awake. He does not nap everyday but a few times a week he will take a 2 hour nap (we do not ever put a diaper on for naps). If he falls asleep he is usually wet when wakes up and completely unaware at first that he has gone. He still wears a nighttime diaper and wakes extremely wet every morning sometimes to the point it has leaked enough his pajamas and bedding are wet. We always make him use the potty just before bedtime. Our question is if we need to be doing something different with him in trying to nighttime/sleep train him or if in his case it is something that his body is just not ready for and will take longer?