Hi Bobbie,
The Natural Bed Store is the direct outlet for Land and Sky mattresses and you can see my thoughts about them in post #2 here. There is no doubt they use good quality materials and that a layer exchange is also a “value bonus” but they are in a more premium price range than other manufacturers that use the same materials.
You can also read more about the “premium” that may be attached to organic Dunlop latex vs 100% natural Dunlop latex and the other types of latex in post #6 here so you can decide if any premium attached to an organic certification is worth the higher price.
Phoenix