Hi TanJent,
While this layering could be too soft for many people and could be risky in terms of providing good alignment … I would agree that with your lighter weight and because the middle layer is Dunlop (which tends to be firmer than Talalay in the same ILD) that the odds are better that it could be a good match for you although your own testing (once you have “recovered”) will be the most reliable way to know for certain. There is more about the differences between Dunlop and Talalay in post #7 here.
Just in case you aren’t aware of it … the tutorial post also includes a list of the members here that sell mattresses online (in the optional online step) and some of them make latex mattresses that are very similar to the Savvy Rest (component latex mattresses that use multiple layers with a cotton cover quilted with wool) except some of them have more options for the type of latex they offer, the number of layers available, have lower prices (in some cases significantly lower), may have have better exchange policies, and have return/refund policies as well (which isn’t an option with Savvy Rest) that may also be worth considering.
If you do decide to go in this direction it will be interesting to see the results of your actigraph :).
I’m looking forward to finding out what you end up deciding.
Phoenix