Hi incognito,
Mostly their exaggerated / misleading / or deceptive information on their site and prices that are exceptionally high compared to other similar mattresses with similar materials.
Diphenyl diisocyanate: This is a chemical used to make polyfoam or memory foam (not natural latex) and is consistent with the results of an analysis of their so called “natural memory foam”
Waxes styrene-butadiene copolymer: Styrene Butadiene is synthetic rubber.
There is much more about Essentia and some of the misleading claims they make and some forum discussions with them in the rest of the topic we are posting in along with this thread and posts #3 and #4 here.
Phoenix