The 4" All Cotton #604 21x54 Loveseat Ottoman Blue Microfiber Futon Mattress features a firm surface feel with more densely packed cotton inside for durability and firmness.With 40 lbs of Gold Bond "JOY" cotton batting for resilience and longevity, this futon mattress provides a perfect starter solution. The All Cotton has a firmer surface feel compared to other materials, and the custom-blended batting ensures its long-lasting performance.This product offers various sizes and colors to fit individual preferences and needs. Made from 100% polyester microfiber fabric with a firm surface feel, this futon mattress is designed for comfort and support. The specifications and weights are based off the full-size futon mattress, ensuring consistent quality across all sizes.