Hi sayedhamdani,
Just in case you haven’t read it yet the first place I would start your mattress research is the tutorial post here which has all the basic information, steps, and guidelines that can help you make the best possible choices.
I replied to some of your questions in this thread in my reply here in your other thread.
I would also echo some of the suggestions made by wrngway which are excellent.
If you are looking for a mattress that is comparable to another one in terms of materials, quality, and durability then you would need to find a mattress that used similar layering and construction so it would depend on which specific Ecosleep mattress you were comparing. This means that you would need to make sure you were dealing with a retailer or manufacturer that disclosed all the layers of their mattresses so you can compare the design of each mattress to see how closely their designs match each other. If you are comparing two mattresses in terms of how they feel (that don’t use the exact same materials or construction) then you would need to test them both in a side by side comparison to see how similar they feel to you in terms of PPP because the “feel” of a mattress is quite subjective and how closely two mattresses “matched” each other would depend on the perceptions of each person and on their body type, sleeping style, and preferences. There is more about “matching” one mattress to another in post #9 here but it’s generally more effective to “match” all the mattresses you test to a common set of standards and your personal value equation rather than using one mattress as your “target” that you use to measure other mattresses against.
The specs of the Pure Latex Bliss mattresses are listed in post #2 here but they are very close to the ones that wrngway listed.
Blended Talalay latex uses about 30% natural rubber and 70% synthetic rubber while 100% natural Talalay uses 100% natural rubber. You can read more about the different types of latex in this article and in post #6 here. Blended Talalay and 100% natural Talalay have a very similar “feel”.
Some of the better options and possibilities I’m aware of in your area (including Mt Vernon Sleep Center which wrngway also mentioned) are listed in post #2 here including a number of latex options that are available in the area.
Phoenix