Hi cubby,
They don’t mention the type of latex they use but I believe it’s blended Talalay latex made by Radium. They have a range of different combinations of materials and firmness levels in their different mattress designs but I believe all of them are zoned with firmer latex in the center of the mattress.
The specifics of the 3DZH is in the Cardis descriptions and the hybrid comes in two different firmness levels (Luxury firm and Luxury plush). The Luxury firm has 2.5" of latex over a polyfoam support layer while the Luxury plush has 4.5" of latex over the polyfoam support layer.
ADMIN NOTE:Removed 404 page link | Archived Footprint 1: cardis.com/main/mattress_detail.php?s=707702709&r=7027&v=3dzh%20Luxury%20Firm&c=Latex%20Mattress&f=NATURES%20REST&g=King | Archived Footprint 2: cardis.com/main/mattress_detail.php?s=705703709&r=7037&v=3dzh%20Luxury%20Plush&c=Latex%20Mattress&f=NATURES%20REST&g=Queen
Post #2 here has more about some of the more common causes of different types of “symptoms” on a mattress but back ache in the morning is usually an indication of a mattress that doesn’t have enough support for you under the heavier parts of the body and is allowing you to sink in too far which puts your back out of alignment. This can be from comfort layers which are too thick and soft or from support layers which are too soft for your body type and sleeping positions. I’m not sure which firmness level you have but it may be worthwhile testing the firmer option if you have the plush version because the comfort layers on the Luxury plush version may be a little bit too thick and soft for your body type. If the firmer version works well for you in terms of alignment then you would still have the option of adding an additional topper if you need additional softness and pressure relief.
Assuming that the pressure relief on the mattress is suitable for you … the change with the highest odds of success would be exchanging for a mattress with either firmer support underneath the heavier parts of your body or with a slightly thinner comfort layer which will put you close to the support layer (although the tradeoff may be a slight reduction in pressure relief).
A latex hybrid is typically a latex comfort layer over a polyfoam support layer but there is a wide range of different versions possible with different comfort and support layers so one specific hybrid may be a good match for you in terms of PPP while another may not. Your own testing and experience is really the only way to know with certainty. If you are exchanging a mattress for another one I would make sure you spend as much time as possible on your new mattress and test it as objectively and carefully as possible so you have the highest odds that the new mattress will be a good match for you. There is a little more about the differences between an all latex mattress and a latex/polyfoam hybrid in post #2 here.
The mattress you linked is all latex so there are no weak links in the design but once again only your own experience can tell you whether it’s a suitable match for you in terms of PPP and I would make sure you spend as much time as possible lying on it and testing it as accurately and objectively as possible (using the testing guidelines) so that your testing can predict your actual sleeping experience as closely as possible.
If the battery is for the emergency power down system that can lower the bed in case of a power outage your instruction manual see here has instructions on where to install it.
ADMIN NOTE:Removed 404 page link | Archived Footprint: ergomotion.com/documents/serta/Motion_Perfect_Manual.pdf
Phoenix