Hi brianj,
No … you’ve covered all the information you need to make an informed choice and the manufacturer of the foam isn’t really important (and some mattress manufacturers don’t release this information anyway for proprietary or competitive reasons). All you really need to know is whether the mattress is a suitable match for you in terms of PPP (based on your testing) and to make sure that the quality of the materials inside the mattress meet the quality/durability guidelines here (which they do).
I already know that they are transparent about the materials in their mattresses and will disclose them to their customers and that they use good quality materials so they certainly fit the profile of the type of manufacturer that I think highly of and prefer to deal with. Other than this there really isn’t much more a purchasor would need to know other than the prices which you’ve already posted. Of course if you are able to post the specifics of any of their other mattresses as well (such as their innerspring mattresses or latex eurotop) it may be helpful for some of the other members that may be considering them but it certainly wouldn’t be necessary since I believe they would provide this to any of their customers anyway (who are knowledgeable enough to know to ask) and I generally suggest that consumers confirm the specs when they are testing a mattress because specs can sometimes change from time to time.
Phoenix