Hi Mom of 2,
This would be from the combined effect (in terms of temperature and moisture wicking) of the layers underneath you including the memory foam, the cover, the mattress protector, and your sheets and bedding … not just the mattress cover alone.
One of the main parts of Savvy Rest’s marketing focus is the use of natural materials and Celsion (now called Talalay GL fast response) is blended latex (about 70% synthetic/30% natural) so it wouldn’t fit inside the natural or organic market they are targeting. In most cases … the gel that is added to latex isn’t really necessary because Talalay latex is already a very breathable material but it will make a “slight” difference for some people. The Savvy Rest cover is also a very high quality and very durable cotton twill quilted with wool and is a much more costly component than the cover in the Pure Latex Bliss mattresses (which is a stretch knit synthetic blend).
Of course the quality or cost of the materials has little to do with how a mattress feels and performs in terms of PPP and the blended Talalay and Talalay GL in the Pristine is also a very high quality and very durable material and there are also many people who prefer an unquilted cover that puts them closer to the “feel” of the latex.
You can see my comments about “major brands” (including Tempurpedic) in item #1 in this article and about Tempurpedic as a brand in the list of the top 15 manufacturers here and much more detailed comments about them in post #2 here and the posts it links to. While for the most part (with a few exceptions) they use good quality materials … they certainly wouldn’t be in the same “value range” for most people as many other memory foam mattresses that use the same or better quality materials and are in much lower budget ranges.
The Pristine is certainly a high quality choice and the blended Talalay latex it uses from top to bottom is a very high quality and durable material so there are no weak links in the mattress. They are very similar to the “regular” Pure Latex Bliss mattresses which use the same combination of materials.
Most importantly though … it sounds like the Pristine is the best match for the parts of your personal value equation that are most important to you … and congratulations on your new mattress. I’m looking forward to your feedback when you’ve received it and you’ve had the chance to sleep on it for a bit.
I hope that both you and your husband enjoy it for many years to come
Phoenix