My aunt has had sleep issues for years due to poor health and meds. I wouldn't be surprised if she got one month of sleep in the past five years. She finally went to the Mayo Clinic last year for a full evaluation - testing all possibilities. They figured out that it was a combo of interaction of many meds and resulting not having stable sleep behaviors for many years - her body simply didn't know how to do it. They diagnosed and gave her an action plan, which is working. Not all of us can go to Mayo, but it might be helpful to find a hospital that specializes in sleep disorders that your insurance will pay for.