Hi Kathleen,
Thanks for taking the time to share an update with your experiences … I appreciate it.
There is more information in post #9 here about the different ways that one mattress can “match” or “approximate” another one. Every layer and component in a mattress (including the cover and any quilting materials) will affect the feel and performance of every other layer and component and the mattress “as a whole” so unless you are able to find another mattress that uses exactly the same type of materials, components, cover and quilting, layer thicknesses, layer firmnesses, and overall design (which would be very unlikely) then there really isn’t a reliable way to match one mattress to another one in terms of “comfort”, firmness, and PPP (Posture and alignment, Pressure relief, and your own Personal preferences) based on the specifications of the mattresses (even assuming that you can find out all the specifications you would need for both mattresses you are comparing in the first place).
If you wanted to build your own DIY mattress that was an approximation of the Pinnacle then you would need to find out the specifics of every layer and component in the Pinnacle (which would include the type and blend of latex, the thickness of each layer, and the firmness of each layer along with the specifics of the cover and quilting) and purchase them separately and it’s unlikely that OMI will provide you with all the information you would need to “duplicate” their mattress.
If you can’t “duplicate” a mattress based on the specs of the materials and components inside it then the only way to “match” another mattress in terms of comfort, firmness, and PPP would be based on your own side by side comparisons and personal experience.
I’m not sure which combinations of latex layers that you tried but there would be a very wide range of different layering possibilities that use either Dunlop or Talalay in each layer with different firmness levels for each layer that would each have a different “feel” and firmness level. I would also guess that there was also less wool in the cover but I don’t know this for certain because I don’t know how much wool each of them use in their covers.
This is a somewhat distorted version of a true story. Box springs that have actual springs inside it were more common 15 and more years ago when there were still many 2 sided mattresses in the industry but they have been replaced with foundations that are firm and have no flex under the mattress since one sided mattresses have become more common.
A box spring can certainly have an effect on the feel and performance of a thinner 2 sided latex mattress that for some people may be too firm or uncomfortable without it. Most thicker latex mattresses tend to do best with a foundation rather than a box spring.
You can read a little more about the pros and cons of a latex/polyfoam hybrid vs an all latex mattress in post #2 here.
There is also more information about so called “soy foam” and other “plant based” foam in post #2 here but they are just a version of polyfoam.
I don’t know what the specifics of the layers in the Pinnacle you tested were but Flobeds gives you the choice between 100% natural Talalay and blended Talalay. They would certainly make a great quality/value choice and their vZone is also somewhat unique in the industry because it allows you to customize both the layering and the zoning in the mattress but their layers and components and the overall design of their mattresses would be different from the Pinnacle.
You can see some comments about the Zenhaven mattress in post #2 here but it also has a completely different design than the Pinnacle. Of course they are also only one of many online latex options that are available to you.
Sherwood is the Dunlopillo licensee in the US but unfortunately the information they provide about them on their site is missing the most important information that you would need to know about their mattresses (see this article) and particularly the thickness and density of each layer. Without knowing the density of any polyfoam layers in the mattress it’s not possible to make any meaningful comments about the durability or useful life of the mattress or make meaningful comparisons with other mattresses and I would avoid any mattress by where this information wasn’t readily available from a retailer that sells it.
Phoenix