Hi colorfinger,
Cape Fear Bedding is one of the better options or possibilities that are included in the Wilmington/Jacksonville, NC list in post #5 here.
Outside of how well it matches your specific needs and preferences in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences), a mattress is only as good as its construction and the quality of the materials inside it but both Golden and Therapedic are manufacturers that tend to be more transparent about the materials they use (especially Golden) so you have a much higher chance of being able to find out the specifics of what is inside any of their mattresses you are considering (see this article) so you can identify any weak links in the mattress and make more meaningful comparisons with other mattresses.
In most areas where they are sold … Therapedic and particularly Golden can be among the better quality/value choices in the area but of course the name on a label isn’t nearly as important as what is inside the mattress and how it compares to your other finalists based on the parts of your personal value equation that are most important to you.
Just in case you haven’t yet … I would make sure you’ve read the mattress shopping tutorial which has all the basic information, steps, and guidelines that you will need to make the best possible choices and perhaps even more importantly know how and why to avoid the worst ones.
Phoenix