To answer: is there any information that links sex to bedwetting? Yes, there are a lot of very 'adult-oriented' sites about bedwetting and wetting in general. Some people *like* to do it and find it extremely sexually comforting! Or, it could be a physical problem and he is just too embarassed to go to the doctor. If it wouldn't seem awkward, ask him if he actually likes doing it (and, if the bed's just going to get wet anyways...)