The Crane mattress features a superior performance polyester filling made from a highly sophisticated blend of three polyester fibers, including an advanced elastomeric binder fiber. Designed with sustainability in mind, the polyester within this mattress is 100% recyclable at the end of its life and can be upcycled into alternative products. With a refined blend of both coarse and fine fibers, the spiral crimped conjugate fibers provide the sensation of millions of tiny springs, engineered to deliver support and recovery. Free from FR chemicals, the polyester used in this mattress is inherently flame retardant. The pocket spring unit contains 3000 individual pocket springs that work independently to respond to your body’s movements and weight, providing comprehensive support. This mattress offers a medium feel, making it an excellent choice for those seeking cooling properties combined with pressure relief and support. Eco Comfort Fibres Hypo Allergenic Fillings Pocket Spring Unit Sustainable MaterialsRecyclable MaterialsMedium DensityNo Need to TurnA Long Lasting OptionFavorable Micro-climateThe Foam AlternativeFree From FR Chemicals.