Budget mattress or mattress surgery?

Went by the local Healthy Back yesterday. Did learn that their latex topper is ILD 15, too soft especially when placed on the concrete floor for demonstration purposes. I liked the $2500 “medium” Bliss mattress, their “most popular model,” but the salesperson didn’t know ILDs on the mattress layers. A follow-up phone call identified this as a Bliss Essence, so based on post #11 here, that’s 1" of ILD 15 plus 2" of ILD 24. If I have that right, it’s good to know that ILD 24 or below might be best for me.

I planned to visit A Bedder Buy locally to look at their latex mattresses. However after learning in post #2 here that the “engineered latex” in a Boyd 910 isn’t latex, I’m not sure it’s worth the trip. (I thought $399 for a queen latex hybrid with foundation was too good to be true.)

From the picture of the “Lavendar Latex Hybrid,” the “pillowtop” quilting looks too thick, and even that is a latex/poly mix.

Nature’s Rest and iComfort are out of my price range.

What about the Boyd 933? Is that top layer real latex?