Hi Adidas,
No … if I become aware of new options through my research I add them to the local forum lists at the same time. The last edit to the Tampa list was on May 24th of this year so it’s up to date as far as options I’m aware of.
Any retailer can be a good place for testing if they can provide specifics about all the layers in the mattresses you test otherwise you may like a mattress but have no way to know what you were testing.
Post #21 here includes the members here that sell online and many of them sell latex mattresses and have good refund policies.
This varies from place to place but in most cases their websites or a phone call will provide you with the details. There are many online manufacturers or retailers that allow you to exchange a single layer to make adjustments to your mattress which is usually very economical (often under $100 or even less including shipping) but make sure you check each one on an individual basis because there is a wide variety of different policies and it’s important to know the specific refund or exchange policies of any online (or local) manufacturer or retailer you are considering before you make a purchase. There is normally one exchange at a reduced or minimal cost. In case you haven’t read it yet … post #1 here has all the basic information, steps, and guidelines that can help you make the best possible choices either locally or online.
Phoenix