The 4" All Cotton #604 Cott Size 30X75 Black Microfiber Futon Mattress has a firm surface feel. The All Cotton has more densely packed cotton inside for durability and firmness with Gold Bond using a custom-blended "JOY" cotton batting for resilience and longevity.This is the perfect starter futon mattress that includes 4' all cotton with 40 lbs of Gold Bond Joy cotton batting, featuring specifications and weights based off the full size futon mattress. The mattress fabric content/mattress covering is made from 100% polyester material.With a thickness of 4 inch, length of 75 inches, and width of 30 inches, this futon mattress provides a firm surface feel for durability and support. The Gold Bond "JOY" cotton batting allows for long-lasting resilience and longevity.