Hi Andy650,
I missed the post you wrote while I was writing my last reply.
The better options and possibilities I’m aware of in the areas in and around San Jose (subject to the quality/value guidelines here) are listed in post #2 here.
Outside of PPP (Posture and alignment, Pressure relief, and your Personal preferences) the most important part of the value of a mattress purchase is durability which is all about how long you will sleep well on a mattress. This is the part of your research that you can’t “feel” and assessing the durability and useful life of a mattress depends on knowing all the specifics of its design and construction and the type and quality of the materials inside it regardless of the name of the manufacturer on the label (or how a mattress feels in a showroom or when it is relatively new) so I would always make sure that you find out the information listed here so you can compare the materials and components to the quality/durability guidelines here to confirm that there are no lower quality materials or weak links in a mattress that would be a cause for concern relative to the durability and useful life of a mattress before making any purchase.
It’s very unlikely that you will be able to find out the information you need to make an informed choice so I would also avoid Aireloom (see this article) along with any mattress where you aren’t able to find out the quality and durability of the materials inside the mattress.
Phoenix