The 8" Double Foam & Cotton #611 21x28 Chair Ottoman Black Microfiber Futon Mattress features two layers of solid 1 1/2" foam for resiliency, cushioning and comfort with a medium firm surface feel. This mattress has dense "Joy" cotton batting surrounds the foam layer and is made from 100% polyester. The 8" double foam construction provides adequate support and durability.With dimensions of 21" x 28" and a thickness of 8 inches, this futon mattress offers a comfortable sleeping surface. The two pieces of 1.5" foam provide the necessary support for a restful night's sleep. Additionally, the cotton batting adds to the overall comfort and cushioning.Designed with a focus on durability, this futon mattress is perfect for use as a chair ottoman or floor mattress in any room. The pre-compressed cotton and foam ensures the mattress remains firm and durable under maximum pressure.