Chemicals in conventional mattress flame retardants include: •PBDEs (polybrominated diphenyl ethers): Used in mattresses before 2004. However, since it was determined that these chemicals are toxic to your liver, thyroid, and nervous system, mattress companies have phased use out. •Boric acid: Has known carcinogenic properties. •Melamine resin (contains formaldehyde): The US Environmental Protection Agency (EPA) classified formaldehyde as a probable human carcinogen under conditions of prolonged exposure.
