Hi dk410,
It has the same materials as the Healthy Back models (Talalay latex and Talalay Gl fast response) but it may be a different combination of the same materials and may have a different “feel” than one of the specific mattresses at Healthy Back. I don’t think that Healthy Back has a similar model to the Nutrition as far as I know.
That depends on which mattress you are considering and what else you are comparing it to and on your own “personal value equation” (I look more at the “value” of the complete purchase rather than just the “material value” of the mattress itself). If this is the PLB Nutrition though and you are purchasing the set then it seems to be good “material value” to me yes.
You can also use some of the stores in post #32 here that also sell the PLB mattresses online as a value comparison.
Phoenix