Merax Enjoylife Ergonomics 8" Comfort Sleep Independent Spring Bed Mattress Twin Mattress White (Twin:7439) 8" Twin size mattress provides comfort and support with its independently-encased coils Two cushion layers to protect the independently-encased coils: a non-woven fabric insulation pad and a thick foam layer Meets federal flammability standard 16 CFR 1633 Both sides are available to use Mattress comes compressed and rolled for easy shipping