Hi paperman,
Natura used to be an independent manufacturer of a wide range of mattresses that specialized mostly in latex or latex hybrid mattresses (such as the one you are looking at) but they went bankrupt and were bought out by Spring Air / Sommex which have since split and Natura is now part of Rev Sleep which is owned by Sommex. They lost a lot of market share because of delivery issues before and after the bankruptcy but this seems to have been resolved.
They use good quality materials but tend to be in a more premium price range compared to other similar mattresses made by other manufacturers. A forum search on Naturaworld or on Natura Sommex (you can just click these) will bring up more comments and feedback about them and a google site search on natura will bring up even more.
Outside of testing a mattress for how suitable it is in terms of PPP, the most important part of a mattress purchase is to make sure that you now the quality of all the layers and components in a mattress (especially in the upper layers which are normally the weak link of a mattress). Without this there is no way to assess the quality/durability of a mattress or make meaningful comparisons with other mattresses.
In the case of the Natura Trailway the layers from top to bottom and my comments are …
2.3 lb wool quilting: which is a good quality material and would help with temperature regulation although it will compress a little and become firmer over time (which is a normal part of the way that wool performs).
1" polyfoam quilting: This is within the guidelines I use of “around an inch or so” of polyfoam quilting and wouldn’t affect the durability of the mattress.
2" Talalay latex: They don’t say whether this is 100% natural or blended Talalay but either way it would be a good quality material (I would suspect it’s blended). I would want to know the blend though because it can help you make more meaningful comparisons with other mattresses.
6" plant based polyfoam core: This is just polyfoam (you can read more about so called plant based foam in post #2 here) but they don’t provide the density of the polyfoam which I would want to know … particularly with thinner comfort layers where the support layers will be subject to more wear and tear.
So assuming that the support core is 1.8 lb density or better this mattress wouldn’t have any obvious weak links but like most of the Natura mattresses they are in a more premium price range than other mattresses with similar designs that are available to you online.
You can also see my thoughts about buying from Costco or other big box stores in post #4 here.
The “bottom line” is that it is good quality and would be a better choice than many mainstream mattresses but you could probably do better in terms of value for this type of latex hybrid mattress.
Phoenix