The children's section of the book has two stories, one for boys and one for girls, about children using an imaging or visualization process to end sleepwetting. Both stories are written at about third grade readability level, but could work read aloud with children six and up who are not reading at that level yet. The visualization concept is not childish and can work for teens and adults. If you decide to try this, you will probably want a personal copy because rereading one or both stories almost every night is part of the process.
GoodNites® disposable absorbent underpants now come in boy and girl styles but in only two sizes,
'Medium' [45 to 65 pounds - 20 to 30 kg]
'Large/XL' [65 to 125 pounds - 30 to 55 kg]
GoodNites® are now marketed in the Netherlands, Belgium, France, and the UK under the name Dry Nites®.
Several chain stores in the US have similar house brand disposable absorbent underpants usually in one all-white style with two or three sizes. Their prices are generally a bit lower and bulk quantities may be available.
Pampers® now offers size 7 disposable diapers for children over 40 pounds.
Biobottoms Stay Dry Pants® are the best quality one-piece washable pants we have seen for kids, but the largest size is H, 51-60 lbs. Other washable padded cloth pants, waterproof overpants, and one-piece combinations are available from incontinence products sites on the Internet.
ABC's of Parenting - look under their topic 'bedwetting' for a list of other responsible resources
disclaimer:
I am NOT a medical professional and do not offer advice that should be taken as medical or therapeutic in intent. Always consult a doctor for medical diagnoses and treatments. I have researched the area of teaching bladder control and managing bladder disabilities as part of volunteer work with incontinence support organizations and families of children with disabilities. I am a writer, actor, storyteller, former children's bookseller, and parent of two young adults. I serve as one of ten moderators for the parenting newsgroup misc.kids.moderated and one of the moderators for the kids' e-mail list EnuresisKids.