The 9" ViscoCoil II #628 Blue Microfiber Futon Mattress features ViscoCoil technology with a firmness rating of medium-firm. This futon mattress includes a layer of viscoelastic foam and is made from microfiber material.With an 8-inch thickness, this mattress provides adequate support for various sleeping positions. The ViscoCoil design allows for improved pressure relief and comfort. Designed with a blue microfiber cover, this futon mattress offers durability and stain resistance.