How can I get a sleeping aid that worked for me years ago

For the past 7 years I have been a cancer patient with good and bad periods of general health. Through it all, I have had an increasingly difficult time getting a good night's sleep.

Doctors have prescribed everything from Sonata ($100 for 6 capsules -- hospital discharge price), as well as half a dozen others. None gave me a night's rest.

Instead of collecting more unusable, expensive drugs I would like to use something that worked perfectly for me years ago. It was Seconol. When I request it, doctors will not prescribe it. They say they have never heard of it. From what I'm reading it looks like they are afraid of liability. I want to sleep at night without hallucinations from things such as Sonata.

I don't have unlimited funds to stuff my shelves with these unworkable "new" drugs. I ask for samples with a prescription to be able to try a new one and avoid expanding my collection if it doesn't work but they say they don't have them. Throwing them into the landfill doesn't appeal to me either as birds may end up eating them.

Very frustrated and tired.