Are chemical fire retardants used on the mattress?

We do not chemically treat our materials, foams or mattresses for any reason. The Leesa mattress is wrapped in our iconic four-stripe cover that features fire retardant properties and fully encased in a fire retardant sock made up of a proprietary blend of fibers, each chosen for its balance of comfort and flammability performance. The fire sock functions to smother and dampen flames by causing a layer of char to form, thus preventing oxygen from feeding the fire and subsequently preventing the flames from reaching the foam and spreading.