The 9" FeatherTouch II #626 King Black Duct Futon Mattress features a soft surface feel with six 2" layers of high resiliency convoluted foam and custom-blended "JOY" cotton batting for resilience and longevity. This king futon mattress measures 76" x 80" and has a thickness of 9 inches, constructed from 100% polyester and 9" cotton. With a weight of 62 pounds, this futon mattress provides ultimate comfort and folds easily into any futon frame. The convoluted foam and Gold Bond Joy cotton batting contribute to the longevity of the mattress. Designed with an easy fold feature, this FeatherTouch II #626 King Black Duct Futon Mattress offers a hassle-free assembly process, eliminating the need for additional setup instructions.