Adult Enuresis

My son is 21 years old with primary enuresis. He's taken the pills (and I'm sorry I can't remember the name anymore) and the nasal spray when he was a kid. At one point in his mid teen years he decided he had enough with taking any pills and abruptly stopped and refused to take any more. If he sleeps lightly or or a short period of time (4-5 hours) he won't have a problem. I think trying to do this over the years has really disrupted his sleep abilities. He did get relief for a period after two visits with a hypnotist. At that point, he entered the Army. He didn't have any problems for a while, but then again, he didn't get much sleep during basic and AIT training. When he was assigned his life base, the problems came back. As he had to share a room in the barracks with another, I don't doubt he roommate(s) were aware of the smell. Through a semi-unrelated accident, he got out on a medical discharge involving his shoulder and is now living here at home. He occupies our upstairs which has two rooms and a full bath. The smell coming down the stairs is pretty strong. He insists on doing his own laundry but if he leaves it in our laundry room for a while, I'll toss it in with some products designed to remove urine protein and smell from clothing. He has yet to get his drivers license, no job, no schooling, and stays upstairs most of the time. He's very social with us and we go to stores together, he helps with groceries and cooking. He is so very intelligent and fun to be around, but he's wasting away upstairs. He won't look up his medical insurance information from the Army, he won't wear nighttime protection, I've given him names and phone numbers of reputable hypnotists. He says "that's great" but never calls. Since he is 21 I do have my hands tied a bit, but I am so very concerned for his future. Any ideas? I do believe enuresis and depression are responsible here, but I don't know the entire story unless he tells me.