Hi sayedhamdani,
You can see the specs of the Nature in post #2 here. I would be very careful about knowing the type of latex in the mattress though because the blended Talalay versions are much more common than the 100% natural versions of the PLB mattresses (and the 100% natural versions of the Pamper, Nature, Nutrition, and Beautiful are no longer listed on the PLB site and they are being phased out). If it has a 20 year warranty then it’s blended talalay.
Many retailers are confused about this because PLB calls blended Talalay “natural” and 100% natural Talalay (which only has a 10 year warranty) “all natural” and the very slight difference in terminology and the common use of “natural” in the description of both is the source of a lot of misleading information provided by many retailers who don’t know (or in some cases don’t want their customers to know) the difference between them.
Ecosleep uses blended Talalay latex which is the same quality material as the blended Talalay used in the PLB mattresses although the designs are different so one or the other may be a better or worse match in terms of PPP depending on your body type, sleeping positions, and personal preferences. The only way to know which one is a better match for you would be your own personal testing or experience on the mattress because even though the quality of the materials would be the same … the designs and the thickness and firmness of the layers are different.
Latex has a more “on the mattress” feel than memory foam which is a more “in the mattress” material and it is also a much more resilient and springy material (see post #2 here) but you will sink in more deeply and be more “in” the mattress with softer latex than you would with firmer latex … especially in the comfort layers.
Phoenix