Hi Tubalubs,
The first place I would start your research is the mattress shopping tutorial here which has all the basic information, steps, and guidelines that can help you make the best possible choices … and know how and why to avoid the worst ones.
There is also more about the most important parts of the “value” of a mattress purchase in post #13 here that can help you make more meaningful comparisons between mattresses.
The tutorial post also includes this link to a list of the members here that sell mattresses online and many of them sell component latex mattresses that use different types of latex and have many different options, features, designs, and return/exchange policies that I would also consider if you are considering an online purchase. Several of them make latex mattresses that are very similar in terms of the materials and components to the Savvy Rest latex mattresses. Post #3 here may be helpful as well.
Phoenix