Hi Bunny1999,
The list of the better online topper and mattress component suppliers I’m aware of is linked in my reply to you here.
[quote]I understand Talalay is like Angel Food Cake, so a Medium firm might be best for the 3" Toppper …,.,or if we choose a complete Mattress in 3 Layers, and Mix with the Firm on Bottom, of the Mattress! Firm bottom, Medium Firm in middle, and Medium on Top?
Although I think the Dunlop Latex might be a better choose with my bad back.[/quote]
There is more about the differences between Talalay and Dunlop in post #7 here. One isn’t inherently any better than the other and the choice between them would be a preference choice rather than a “better/worse” choice. The best way to know which type or blend of latex you tend to prefer will be based on your own personal experience.
ILD is only one of several specs that makes one topper or material feel softer or firmer than another (see post #4 here and post #2 here) and the ILD of different materials or different types and blends of latex also aren’t always directly comparable to each other (see post #6 here) so using ILD by itself can sometimes be misleading.
Phoenix