Thank you Louis, Tom and Jeffrey for your replies. When my son was about 8, the GP prescribed a course of tablets for him (I think it was DDAVP), which resulted in him passing a reduced quantity of urine in his nappy at night, but it was not a cure. In fact after he had completed the course, his wetting became worse than it had been before he started on the course. We also tried waking him regularly in the night at about that time, but to no avail, so I am a bit doubtful whether Jeffrey’s suggestion for an alarm would work, but I will talk to him about that. Eventually the bed-wetting reduced naturally and he became dry at night before his tenth birthday. After six months of this current spell of wetting I took him back to the GP because there had been no improvement, and the GP carried out urine and blood tests. When the test results came back, the GP said that there was nothing wrong and that he was confident that his wetting would cease on its own, given time. I am almost 100% certain that he doesn’t have a nappy fetish. The only occasions when he put his nappy on an hour before bedtime, was when he wanted to watch a late evening TV series, so he had an early bath and dressed ready for bed (nappy, plastic pants and T-shirt) so that he could jump straight into bed as soon as the program finished. When the TV series finished, he reverted to his normal bath time, immediately before going to bed. He certainly doesn’t lounge around in either a dry or wet nappy. As he is a very deep sleeper and his plastic pants are see-through, I have been able to carry out a number of discreet checks, and as far as I can tell he is being truthful about wetting in his sleep and not being aware of it happening. My only slight doubt is that if he wakes up naturally in the morning before normal getting up time and he needs to go to the toilet, he may just be tempted to urinate in his already wet nappy. I expect that most kids who wear nappies in bed would do that, so it doesn’t really worry me. Tom, I may have given you the wrong impression about his moods. He doesn’t go into a frenzy when I talk to him about his wetting, but it is obvious from his tone that he is annoyed that I would presume that he could do more to stop wetting if he really tried. My current concern is why it is taking him so long to become dry at the age of 16, when he managed it OK at the age of 9. Also, because he has been growing rapidly for the past year or so, he is almost at the point where his 36 inch square terry nappies no longer fit him. I was hoping that he would be dry before that time came, so that I wouldn’t have to fork out for a pack of larger size nappies, which he would not get much use out of (hopefully). Perhaps I am being over optimistic, and I certainly don’t want to convey to him that he is under pressure from me, as I feel that could be counterproductive.