The video below explains what chemicals are offgassing from memory foam mattresses, and reports of health effects from sleeping on new memory foam mattresses.
Unlike natural latex rubber, memory foam is a synthetic creation.
“We anticipate conducting mass spec analysis of the chemicals being emitted by memory foam mattresses and will bring you that news once we have the research completed. In the mean time, you may wish to avoid memory foam mattresses and choose natural latex instead (as long as you’re not allergic to latex, of course). ”
Latex mattresses are a fantastic choice and last far longer than spring mattresses, with near-zero “sagging” or loss of resiliency. They’re also made from a renewable, plant-based source: Tree sap. (That’s where latex comes from.)