Hi maryrjones,
Any difference between any of their mattresses and other mattresses you are considering would depend on the specifics of the mattresses you are comparing.
They have many different mattresses available and the types of latex they use includes blended Talalay, 100% natural Talalay, 100% natural Dunlop, and organic Dunlop but the latex in any of their mattresses would be the same or very similar to other manufacturers that are using the same type and blend of latex in one of their mattresses.
They certainly have some great quality/value options available.
There is also more about the most important parts of the “value” of a mattress purchase that can help you make more meaningful comparisons between different mattresses in post #13 here.
Phoenix