Hi ademuzzy,
While European Sleepworks isn’t a member of the site … they are one of many manufacturers/retailers around the country that I think highly of that aren’t members here.
They used to carry Berkeley Ergonomics mattresses but they are now manufacturing their own line which is similar. You can see some comments about them in post #4 here and forum searches on European Sleep Works and on Sleepworks.com (you can just click the links) will also bring up much more information and feedback about them.
They make some good quality/value mattresses and they would certainly be worth including in your research if they are in reasonable driving distance.
Phoenix