Designed for comfort and support, Zonli futon mattress features multiple layers and measures around 3 inches thick when fully expanded. The outer layer is breathable cotton; the filling material is hollow fiber and memory foam core. OEKO-TEX® Certified, skin-friendly, no fading, no hair loss or deformation. Foldable, rollable with reinforced straps. Comes with a machine-washable removable mattress cover for cleanliness and durability. It is your best choice for having a nap, doing yoga, welcoming a guest, playing with kids or even camping. It's the space-saving solution you've been looking for.