Fiber Core Mattress with Polypropylene Cover 80 x 35 x 6 . * 100% virgin densified polyester fiber core is more economical than foam. * Lighter weight than innerspring mattress reduces shipping costs. * Breathable polypropylene cover keeps patient cool and comfortable. * Mattress and vinyl cover are odor free and non-toxic. * Cover is waterproof 100% recyclable odor stain and mold resistant. * Meets Federal Fire Code 16 CFR 1633. * 300lb weight capacity. * One year warranty on fiber core and cover.