Let's take apart our room and make it healthy.
The foams used in most mattresses are mostly derived from petroleum. These are called things like ‘polyurethane foam’, ‘base foam’, ‘memory foam’, ‘visco-elastic foam’, ‘gel-memory foam’, soy based, or other names. The only other distinctive foam is latex, which can come from trees but is then often chemically treated in a modern factory production process. You need to look for the pure organic latex for an alternative to chemicals.
Why? The bed Industry uses foam because it is very very cheap (go to a fabric store and see how cheap) to produce.
Volatile Organic Compounds (VOC’s), or ‘Off-Gassing’, are byproducts of foam and foam mattresses and best avoided. Even "certified" foam can contain chemicals like Benzene, Toluene, Cadmium, Chromium, Cadmium, Tributyltin and other chemicals.
There are reputable sources like the EPA, NIH, NASA, and others to learn more about toxic foam: