I'm not sure the fact that you wear a diaper at night and are wet in the morning means that eventually you will have daytime problems. I think that sleep wetting is a sleep problem not a urinary one. Nonetheless, surely, wiht your wife in the same bad, yoi owe it to here to keep the bed dry and a diaper is the best way to do this. You will probably sleep better too, not worrying about what you will find when you wake. However, though you have been checked by the doctor, has any drug therpay been suggested for you. There are a couple of things that might help and you could just ask. Of course you could try one of the wetting alarms but I think the success rate is pretty low for adults. Stress is often thought to play a part in sleepwetting, so perhaps the reduction of the stress of wrrying about whether you will wet might just help out in the longer term.