Hi Bobbie,
Habitat would not be one of the better options I would look at. They use good quality materials (latex) but they are certainly not in the “best value” range either in terms of cost or the options they offer. Have you read post #1 here (which is always the “best” place to start)?
A forum search on Habitat (you can just click this) will bring up much more information about them including some recent comments that may be helpful.
the ILD of latex is only a “comfort spec” and indicates the softness or firmness of the latex … it has nothing to do with quality or “value” and is irrelevant when making quality or value comparisons. With latex you make “apples to apples” comparisons by knowing the type (Talalay or Dunlop) and blend (NR, SBR, or a blend of each) of the latex. You can read more about the different types of latex in this article and in post #6 here.
Phoenix