Hi zoebelle,
I’m not surprised.
There are many people who prefer a Dunlop latex core with a Talalay latex comfort layer. Others would make a different choice and have different preferences. This would be a preference issue and one isn’t “better” than another … they are just different. There is more about some of the differences between Talalay and Dunlop in post #7 here but the most reliable way to know which combinations of latex you tend to prefer is your own personal testing or experience.
No latex foam manufacturer shares their complete compounding formula but most of them will disclose the blend of synthetic and natural rubber in their product. There are two companies that produce Talalay latex. One of them is Latex International and they are based in Connecticut. The other one is Radium and they are based in Holland. Both of them produce high quality Talalay latex. There is a latex foam manufacturer in Pennsylvania called Mountaintop Foam but they produce continuous pour Dunlop in a range of natural/synthetic blends (from all synthetic to all natural) … not Talalay. The latex they produce is also a high quality material.
Most interesting of all … Savvy Rest which is the manufacturer of the latex mattresses they sell provides the option to choose either Talalay or Dunlop layers (although Furnature may not carry both) and they are the source of the comparison video in the link I provided in the first part of this reply.
There are too many unknowns, variables, and personal preferences involved for anyone that can’t feel what you feel or see you on a mattress or that doesn’t sell a specific line of mattresses to suggest a specific mattress for someone else based on specs (either yours or a mattress) or “theory at a distance” (see mattress firmness/comfort levels in post #2 here). Your own careful and objective testing using the testing guidelines in the tutorial post or your actual sleeping experience is the most reliable way to know whether a mattress is a good match for you in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences).
I think very highly of Neal and Spindle mattress and as you know they are one of the members here so a visit there would certainly be a good idea IMO.
Phoenix