[Leafscore.com] "In times gone by, mattresses were stuffed with feathers, horsehair, wool, and cotton batting, as well as other natural materials. With the introduction of synthetics, everything changed, and not exactly for the better. Now, most mattresses are made with a mix of polyurethane foam, synthetic latex, and conventional cotton, all of which present their own special kind of trouble.
One industry leader, Walter Bader, was so concerned by the toxic slew of chemicals used in mattress manufacture that he sent several mattresses to an Atlanta-based lab for testing. One memory foam model was found to emit 61 volatile organic compounds (VOCs), including known carcinogens benzene and naphthalene!"