Hi Indylady18,
Not that I’m aware of or remember no. You could type them into a forum search and it would bring up any post that mentioned the ones you are searching for but it would be easier to compare them based on the specific design of the models you are considering and the components and type of latex they use. Once you have talked with them and know the specifics of the mattresses you are most interested in then it’s much easier to make more meaningful comparisons between them.
See mattress firmness/comfort levels in post #2 here.
Phoenix