The 4" All Cotton #604 21X54 Loveseat Ottoman Natural Futon Mattress has a firm surface feel. The All Cotton construction has more densely packed cotton inside for durability and firmness. Gold Bond uses a custom-blended "JOY" cotton batting for resilience and longevity.This is the perfect starter futon mattress, available in various sizes and colors with 40 lbs of Gold Bond Joy cotton batting. The specifications and weights are based off the full size futon mattress. The mattress fabric content is 55% Cotton/45% polyester with a natural colored futon fabric. It features a firm surface feel with no restrictions.The 4" all cotton construction includes no batts or batt requirements, making it easy to assemble and clean. With its compact dimensions of 21" x 54", this futon mattress provides the perfect balance between comfort and space-saving design. The item weight is 20 pounds with a thickness of 4 inches. Spot cleaning is recommended for maintenance.