Hi AJohnson and forlongris,
I’m happy you had a positive previous experience with FBM. For those considering Foam By Mail (aka Foam Factory or FBM and other names as well) you may wish to read this post and this post and this topic (about their polyfoam and sources) and this post (presumably from a past employee)for some commentary and information about them, and sources of their foam products.
Hi forlongris,
You’re welcome. Good luck with your choices, should you move in that direction.
You’re correct that sometimes adding a “special name” to a foam can be more marketing to differentiate it than anything else (common with many of the larger “name-brand” mattresses), but often some of these foams, especially some of the newer breeds of the higher density high performance polyfoams, do have a makeup that is quite unique. Of course, you’d still want in find out the density and IFD of the material, as many of these foams can be offered in varying levels of quality/durability.
While you certainly don’t have to be “me” to give advice 
, I’d caution anyone about making such a large blanket statement, as what you’re suggesting doesn’t take into account the many unknowns, variables, and personal preferences involved in choosing a mattress. While the quality of materials you mentioned is certainly good, I’d avoid attempting to predict or make a specific suggestion or recommendation about which mattress or combination of materials and components or which type of mattress would be the best “match” for such a large group in terms of “comfort”, firmness, or PPP (Posture and alignment, Pressure relief, and one’s own Personal preferences) based on specifications. In the end, nothing can replace one’s own personal testing. Of course, this doesn’t discount your own experience and what has worked well for you personally.
Phoenix