Hi theo2076,
Welcome to the Mattress Forum! 
Latex and memory foam are very different from each other so if you are considering a latex or a latex hybrid mattress it would probably be a good idea to test some latex mattresses locally to see which of the two types of foam you tend to prefer. There is more about the differences between them in post #2 here but your own personal experience will be the best way to know which one you tend to prefer. If you let me know your city or zip code I’d be happy to let you know of any of the better options or possibilities I’m aware of in your area that may have some latex mattresses available that you can test.
When you can’t test a mattress in person then a more detailed conversation (or chat) with a manufacturer will be your best source of guidance (see mattress firmness/comfort levels in post #2 here). They will have more knowledge and experience with matching their mattresses to different body types, sleeping positions, and preferences and the different Tempurpedic models than anyone else.
Phoenix