My son also had this issue and it stopped on it's own at age 10. For camp or sleep-overs, You can try the larger size pull-ups, along with boxer shorts on top. The boxer shorts will cover up the pull-up. When he removes his pull-ups and boxers, show him how to remove both the boxers and the pull-ups all at one time/in one unit, so that no one else will even see the pull-up. Can you picture what I mean? I would also follow the mom's advice to buy dark colored plastic trash bags to put them in so that no one can see. If you can't find dark colored plastic trash bags, I would use 2 white ones together. Practice this with him at home many times before the camp. Sometimes at camp kids are expected to change clothes in their rooms and a trip to the bathroom is only for washing up/brushing teeth. Also, I would speak with his teacher and I would be frank about your concerns. I am SURE that your son is not the first child to have this issue at camp. His teacher and/or the camp counselors might have solutions/advice. Finally, I agree with the other mom's ideas about talking wtih your pediatrician again. There may indeed be a medical problem or a medication he can try. Meanwhile, remember not show any anxiety or anger or upset about his wet bedsheets and pajamas. Your son already feels bad enough about it. It's hard when it's 3am and bedsheets & blankets have to be changed. It's hard when you wake up in the morning and are already in a hurry, and find wet sheets and blankets to deal with. It's hard when sometimes even his pillow is wet! I used waterproof mattress covers on my son's bed and waterproof pillowcase covers on his pillows too. Now they make some waterproof bed items that do not make that "crinkly" noise. JC Penney & Sears have reasonable prices. I would check K-Mart & Target too. I would always put 2 waterproof mattress covers on his bed. This way, when one would get wet, I would remove it to wash, and I'd immediately have another one right on the bed ready to go. I know that money is an issue, so maybe the pediatrician could even help out in some way with buying the things you need/perhaps there's an organization that has resources to help you. I know how you feel!! Good luck and let us know what happened.