Hi delioustim,
Some of the better options and possibilities I’m aware of (including Sleep Essentials) in the wider region around Charlottesville/Lynchburg/Waynesboro are listed in post #3 here.
I would call the ones you are most interested in to confirm they can provide you with the specifics of the layers and components in their mattresses (foam densities for memory foam and polyfoam and the type and blend of any latex).
I would also call and discuss the return or exchange policies of any of them you are considering visiting to make sure you have good options available after a purchase in case your long term sleeping experience doesn’t match your local testing for PPP because with the greater importance of choosing the most suitable mattress in your circumstances this may be one of the most important parts of a successful purchase for you.
Phoenix