Hi Nuclearmomb,
There was no attachment or “addendum” in your last post.
The quality/durability guidelines here suggest “no more than about an inch or so of lower quality or unknown materials in the upper layers of your mattress”. The quilting foam is only an inch and then there is 4" or Talalay latex underneath this which is a high quality and durable material that would absorb most of the compression forces from sleeping on the mattress so the additional inch of “unknown density” polyfoam under the latex wouldn’t normally be a significant issue or a “weak link” for most people that are in more average or lower weight ranges (lower 200’s or less) such as yourself.
While I would normally want to know the density of the polyfoam layer underneath the latex because in combination with the quilting layers the “unknown density” materials would add up to 2" … in your case with your lower weight it wouldn’t be as important because the layer is deeper in the mattress and would be less subject to compression so assuming that the mattress you are looking at is 12" thick (so you know there are no missing layers in the information they provided) and if you are confident that it’s a good “match” for you in terms of PPP and it compares well with your other finalists based on all the other parts of your personal value equation that are most important to you (including the price of course) then it would certainly be worth considering.
Phoenix