While this mattress's product listing states that it "meets all the requirements of the federally mandated regulations regulated by the Consumer Products Safety Commission, Part 16, CFR 1632 and 1633" , it comes with a one page warning about the flammability of its contents. The warning explains that sources of heat or fire can cause the polyurethane to ignite, and may burn rapidly, emitting toxic gases. It is quite unsettling to get this full page warning after purchase. This mattress is in my son's room, and I could not sleep well last night as this caution was repeating in my head. If this warning had been posted in the product description, I would have made a different purchase. After getting this information, I searched for fire proof bedding on this website - it just didn't occur to me before to go beyond the federal requirements assurances. O.co has a natural green tea memory foam mattress available that is fire resistant for a little more money, and I would have gladly spent more if I knew of the risk. As far as the mattress quality, I think it is good, but it just came yesterday. Its the product safety that I am rating my purchase on.