Inner bladder material:Sheath filament fiber of fotunes Windmill Palm,natural latexInside material: TYVEk anti-mite fabricsMiddle-layermaterial:100% cotton woolOutside Material: top grade corduroy fabricsNature State of Mind Series has adopted the essence of Fortunes Windmill Palm,sheath filament of palm and flamboyant corduroy.Therefore it has soft and smooth tactility.The design idea of State of Mind Serise is "charming and soft, luxury and romantic".They are favorite products of Nature mattress Series.The mattress is a quiet nurse in sleeping,bringing you healthy and saft sleep experience.Therefore, your state of mind is bound to release freely.