Hi cat,
These are half layers so that you can customize each side of the bed differently for each person. They aren’t meant to be zoned layers. This type of split configuration can be very helpful for a couple that have very different needs and preferences (see the first part of post #2 here).
The most important part of the value of a mattress is how well it matches your specific needs and preferences in terms of PPP. No matter what the cost of a mattress or the quality of the materials … if a mattress isn’t a good match for you and you don’t sleep well on it then it would have little value to you. This part of value of a mattress is something that only you can decide.
The next most important part of the value of a mattress is the type and quality of the materials. Since all the materials are 100% natural latex they are good quality so from a quality perspective the mattress has no weak links.
The next part of the value of a mattress is how it compares to your other finalists and the other mattresses you are considering or that are available to you based on the materials inside it. For a queen size 100% natural Talalay latex mattress with 9" of latex and a wool quilted cotton cover this would certainly be a good price compared to other mattresses that used similar materials if it was new. Of course it is a used floor model and most floor models don’t have a warranty so it would also depend on how you feel about having a warranty and also on the exchange options that are available to you if you sleep on it and find out you need to exchange a layer.
Finally, the “value” of a mattress depends on the other parts of your personal value equation that are most important to you.
From a “raw materials” cost point of view it would be good value for a queen but this is only part of the value of a mattress purchase so only you can decide on how important the price of the mattress compared to the other parts of your personal value equation that may be just as important or even more important than price alone.
You can read more about split layers in post #2 here and the pros and cons of covered layers in post #2 here. You will feel the difference in firmness between each side (which is of course the reason for split layers) but in a suitable cover you won’t feel the split itself.
Phoenix