Hi jsuehl,
Tuft & Needle only makes one mattress but Arizona Premium makes a very wide range of mattresses that have different designs and firmness levels so it’s certainly possible that one of their mattresses may be a good “match” for you in terms of comfort, firmness, and PPP.
You mentioned this is a previous post and you can see my comments in my previous reply here. Latex is the most “supportive” of all the foam materials and it’s more likely that the design of the mattress and the specific combination of layers and components you tried just weren’t a good “match” for you in terms of PPP.
Firmer materials are not necessarily more “supportive” and if you sleep on the floor as an example (which would be firmer than any mattress) it would certainly provide very poor support that wouldn’t keep your spine in neutral alignment.
“Support” is often misunderstood because the goal of a “supportive” mattress is to keep the spine and joints in good alignment and this requires the type of contouring support that allows some parts of the body to sink in more (softer) and some parts of the body to sink in less (firmer) and this will vary on an individual basis based on body type and sleeping style. There is more about primary or “deep” support and secondary or “surface” support and their relationship to firmness and pressure relief and the “roles” of different layers in a mattress in post #2 here and in post #4 here that may also be helpful in clarifying the difference between “support/alignment” and “comfort/pressure relief” and “feel” and how they interact together.
All their different options include microcoils, polyfoam, and Dunlop latex but they are used in different orders and the polyfoam and latex can have different firmness levels as well depending on the specific design.
You can see my thoughts about the type and quality of the materials in the Helix mattress along with many of the other simplified choice mattresses in post #2 here in the simplified choice topic and post #1 in the same topic would be worth reading as well. For those that are in a more “average” weight range there would be no lower quality materials or weak links that are likely to compromise the durability or useful life of the mattress.