Hi windyshores,
Here’s a link describing the qualities required of site members, and post #64 here goes into a bit more detail about this process.
As a synopsis, this site has always been about education and “how” to choose a mattress. The business membership here would account for a very small percentage of the actual purchases made from research performed on this site, because I’m happy to “point to value” wherever I see it.
In short, I would have no concern purchasing a product from a site non-member if their componentry meets the guidelines as outlined on the site and in the Mattress Shopping Tutorial.
Phoenix