Hi Rockfamily,
To “duplicate” a mattress you would need to know all the details of every component in the Green Sleep and then have access to the same or very similar materials in the entire “sleeping system” in the alternative you are buying. This means you would need to know the density and ILD of all the layers in the Green Sleep, the amount of wool and type of material they use in the cover, and any other details that may affect the performance and “feel” of one mattress vs another. This would include the type of flexible foundation under the Green Sleep if this is how you tested it because this would be an important part of it’s performance and feel.
It’s unlikely that you would be able to find out the detailed information you would need to be able to duplicate it and even if you did … SleepEz may not have the exact same materials as one of their options.
So normally the best you can do is put together a mattress that uses similar materials and has much better value that would provide the PPP (Pressure relief, Posture and alignment, and Personal preferences) that you need and prefer. While this would likely provide the same performance in terms of your “needs” (how well it relieves pressure and how well it keeps you in alignment) … because “feel” is very subjective … it may feel very different depending on how closely all the components matched.
You could for example use what you believe is the closest “match” to the Green Sleep in the SleepEz layering (keeping in mind that layer thickness is just as important as layer softness), use extra latex or a tension adjustable base to somewhat “approximate” the Green Sleep base (if you tested it on one) and add a wool mattress pad on top to come close to the same amount of wool in your overall sleeping system and this combination may have very similar performance, much better value, but feel differently (it could be better or worse by your perceptions).
So the real decision would be deciding how much it’s worth to you (and there is no right or wrong in this) to have the exact same PPP as the Green Sleep (in which case you would probably need to buy the Green sleep) or is it worth going in a different direction that would satisfy your needs and preferences and end up with just as high quality and a much better value sleeping system but may not feel the same.
There are also some very good latex options in Victoria that you could try and some have very good value available there as well. I’ve updated the Victoria list in post #2 here (in case you haven’t seen this one) to reflect a couple of conversations I had today.
Phoenix