San Juan Tri-Fold Futon Mattress Features: Comes in Natural , over 400 optional mattress covers available for purchasing. Ideal for adjustable beds or trifold futon frames. For use with a Tri-Fold Frame  7” thickness (8.5” of goods compressed to fit inside a 7” border).  Flip-able design  1 piece of 2” Convoluted 2.2# density soft polyurethane foam, 2 pieces of 5/8” 2.2# density firm polyurethane foam, 2 pieces of 2” Convoluted 3.5# density Re bonded (Econo) Foam.  Layers of Flame Retardant Rayon ensures compliance with Federal Flammability Standard 16 CFR Part 1633. 100% polyester fabric (off white color) that breathes, stays cool and comfortable, and repels moisture.Machine tufting reduces the thickness of the mattress to lock in its good look and feel.  Tape edge process insures proper fit and finish of the optional mattress cover. Binding tape is on only one side. Position tape side down on frame. Compression packaged in a FedEx-able carton.  Durability: 10+ years.  10 Year Limited Warranty against manufacturer’s defects. 30 days of Satisfaction Guarantee.