Hi Don,
Both of them use gel memory foam which would make them more similar to the Cloud Supreme Breeze than to the Cloud Supreme in terms of the memory foam but it’s also very difficult to quantify temperature regulation because of all the variables involved. There are also other factors besides just the gel memory foam (including the protector you choose and your sheets and bedding) that would also affect the sleeping temperature of your mattress (see post #2 here).
Phoenix