I am interested in two mattresses but can’t find much about them online.
Does anyone have experience or knowledge of them? Any opinions are appreciated!
Southerland Evolution Hybrid NXT 2000 or 3000
Coils, latex, and foam.
Heritage Sleep Restore
Three different layers of Talalay latex
Hi Kbg523.
Welcome to our Mattress Forum. 
I did a keyword search of the forum and found these topics related to Southerland. May be worth a browse.
Unfortunately there wasn’t anything that came up about Heritage Sleep Restore.
What is it you’re looking for in terms of information? Are you wanting company information or wondering about durability, comfort, etc?
We’re happy to help get you the right resources
NikkiTMU
Hi kbg523,
Chiming in here: I took at look and the Southerland Evolution Hybrid mattreses, as is the case with many big brand sleep solutions, is not very transparent on the layering, components and construction of their mattresses. The NXT2000 is a firm euro-top, at 14.5", with copper infused latex, gel memory foam of undisclosed thicknesses, 5-zone support and their EvoWC5 1130 count wrapped coil support system. The NXT3000 has the same (lack of) details and comes in a plush euro-top. The HeritageSleep mattresses are likewise copper-infused latex. 100% natural Talalay according to their site, their models being Luxe, Heritage, Legacy and Lineage,again with few details on construction…though latex is latex and if the firmness level is comparable to your body profile, should be quite durable…if you can , as @NikkiTMU said, provide some info as to what you are looking for or trying to accomplish, we may be able to comment further!
~ Basilio