[3-Layer Filler] The bottom and top layers are made of PP cotton fillers to increase softness and fluffiness. The middle layer contains memory foam, enhancing support and preventing collapse. [Surface Material] Our floor mattress is crafted from ultra-fine fiber fabric, which resists wrinkling and pilling. [Concave Convex Design and Support] This futon features a design supporting heavier parts of the body, ensuring even weight distribution and aiding restful sleep. [Versatile Use] This futon mattress can serve as a tatami mattress, floor mat, tent mat, or play mat. Suitable for travel, camping, and picnics.