Hi mgd150.
I am always hesitant to make specific suggestions or recommendations for either a mattress or combinations of materials or components because the first “rule” of mattress shopping is to always remember that you are the only one that can feel what you feel on a particular topper (or a mattress in general) and there are too many unknowns, variables, and personal preferences involved that are unique to each person to use a formula or for anyone to be able to predict or make a specific suggestion or recommendation in terms of if it would be a good match or if it is worth to you based on all the parts of your personal value equation that are most important to you (including the price of course and the options you have available after a purchase if your choice doesn’t turn out as well as you hoped for).
If you are not super picky either of them could work for you, but the most reliable way to know how these two options would compare for you (regardless of how they would compare for someone else) is based on your own personal testing and experience. Both would be durable and here are some facts that might sway you one way or another if they are important to you.
Dunlop and Talalay that are the same thickness and ILD won’t feel the same in terms of their firmness for most people, with Dunlop feeling a bit firmer as is compressed deeper. This is because Talalay and Dunlop have a different response curve and compression modulus (how quickly a material becomes firmer as you sink into it more deeply). Talalay has a more consistent and even and stronger cell structure because even though there is less latex overall … the cell walls or “struts” are thicker and more consistent. There is more about the difference between Dunlop and Talalay in post #7 here .
Having said all that … You can always follow up and go through the list of options that SleepEZ made available to you and you can also peruse through our Trusted Members here which means that I think very highly of them and that I believe that they compete well with best in the industry in terms of their quality, value, service, knowledge, and transparency.
Sleep EZ and Latex Mattress Factory already mentioned to you that they carry toppers that you could try in your home for a 30-day period that come with free shipping and as both are our Trusted Members here I wouldn’t hesitate to recommend them for your consideration. I would add that they have both 2" or 3" Dunlop and NR Talalay toppers of good value/quality and if you call them they’ll be happy to talk you through the specifics of each of their topper options.
Good luck with your choice
Phoenix