Hi JJR,
That’s good to hear I’ve talked with John the owner on a number of occasions and he is “good people”.
I would keep in mind that the mattress under a topper will play a significant role in how it feels but I and most other people would agree that latex is a very different material than memory foam. There is more about how they compare in post #6 here but as you discovered your own experience will tell you more about how they compare than any more general descriptions. There is also such a wide variety of both latex and memory foam materials and mattresses that use them that these types of comparisons can only be generic because the specifics of your mattress will make a significant difference. This is particularly true with memory foam where temperature and humidity and the length of time the memory foam is continuously compressed can change it’s firmness/softness and how it feels and performs over the course of the night. In the end it will really come down to making a choice based on “best judgement”, assessing how well your choice works on your specific mattress, and then using your actual sleeping experience as a reference point to decide whether to change it for something else that is either a different material or firmer/softer or thicker/thinner.
Again … your testing will give you some sense of the materials you tend to prefer in general terms but but I would try and narrow down whether you are sensitive to latex, wool, or both so that a sensitivity to one doesn’t prevent you from considering the other. Did you try your Dunlop topper again to see whether it affected you? If you decide that you don’t want to try either one and don’t want to try a memory foam topper then polyfoam is also a fast response material and will be “closer” to latex than to memory foam. When you are making choices that will require some “trial and error” it may be worth considering trying a topper from a big box store or another merchant that can be easily returned if it doesn’t work just so you have a reference point that you can start from without the risk of not being able to return it.
This uses a microcoil (this one in particular) which is a type of miniature pocket coil that is used in comfort layers rather than support layers and then has a cotton cover that is also quilted with cotton to even out the feel of the coils. Microcoils are a good quality and durable component and are more durable than lower quality foam materials (see this article and post #10 here).
Phoenix