Hi kostolomac,
The ILD information isn’t important to know (your body will tell you whether a mattress is a good “match” for you in terms of comfort, firmness, and PPP).
You only posted some of the layering information but I’m guessing that the complete specs include …
2" of polyfoam quilting (density unknown)
3" of Talalay latex (I would ask about the blend of the latex but it would probably be safe to assume that it’s blended Talalay which is a high quality and durable material)
3" of Talalay latex (same comments as above)
4" 1.8 lb polyfoam support core. This is a good quality material and with 8" of foam above it then it also wouldn’t be a weak link that would compromise the durability and useful life of the mattress.
While I can’t speak to how a mattress will “feel” for someone else … my only concern here relative to durability would be the thickness of the quilting layer which is usually a lower density material and in this case is slightly thicker than the guidelines here which suggest no more than “around an inch or so” of unknown or lower quality/density materials in the upper layers of a mattress or in a quilting layer (unless you have confirmed that the density of the polyfoam is suitable for your weight range).
Once you are at about 2" or more of lower quality/density or unknown polyfoam or memory foam in the upper layers of a mattress then the odds become higher that it could become a “weak link” in the mattress and reduce the durability and useful life of the mattress.
The latex in this mattress is 100% natural Dunlop which is also a high quality and durable material although Dunlop has different properties than Talalay and will generally “feel” differently. There is more about the differences between Talalay and Dunlop in post #7 here.
My comments would be the same with this mattress concerning the 2" layer of plush polyfoam and I would want to know the density of the polyfoam in this layer.
The specs you listed and that they list on their site only add up to 10" and the description says that the mattress is 12" thick so I would also make sure that there are no “missing layers” in the description.
Phoenix