Was this person having this problem as a child? Is this a child? If bedwetting has been a child related thing, there are medications that can help, one (I do not know the name) is made by Aventis, it fills in for the hormone that control bladder control until (if it is going to) the body eventually starts producing it. This is only one reason I am sure for bedwetting problems, I am not a doctor, but have heard about this med cause my husband works for the company that carries it, it is naturally a prescription medication.
If this has nothing to do with your question, please disregard my 2 cents.
Take care,
"darkeyes"

In giving advice seek to help, not please your friend
SOLON