Hi Mightyman,
Did you test the mattress for PPP? When you are deciding on the suitability of a mattress I would avoid using specs because careful and objective testing and your body will tell you much more about whether a mattress is a good match for you than using specs or “theory”. A thinner comfort layer can work just as well as a thicker comfort layer depending on the layers and components underneath it. If this is the mattress you are looking at there … then according to the description on their site it uses 100% natural latex in both the comfort and support layers.
I don’t recommend any specific cover or quilting (outside of avoiding quilting uses thicker layers of lower quality materials) because that would also be a personal preference and would depend on how the cover/quilting interacts with all the other layers and components of the mattress in terms of PPP. A wool quilted cover is certainly a preference that many people like because wool is a very good temperature regulator and has a feel that many people prefer but others may prefer a thinner unquilted stretch knit cover so that they can sleep closer to the latex. Wool can also be used to pass the fire regulations as well but their description indicates that they also use a viscose fire barrier in addition to the wool. There is more about the pros and cons of wool quilted covers vs unquilted covers in post #6 here.
If you are close to Minneapolis / St Paul then the better options or possibilities I’m aware of are listed in post #2 here. Outside of their websites I don’t know the specifics of the mattresses they carry so I would call them first to make sure that any of them that you wish to visit have a mattress on their floor that meets the criteria that are important to you.
There is also more about the most important parts of the value of a mattress purchase in post #13 here and I would make sure you use your careful and objective testing and personal experience (not the specs of a mattress) to assess the suitability of a mattress in terms of PPP and then use the information and specs about what is inside the mattress to make sure that the materials are good quality and to make meaningful comparisons with other mattresses. Knowing the specs is important to make sure that the materials are good quality … but not for deciding on whether a mattress is a good match for you.
Phoenix