Features a superior performance polyester filling that is manufactured from a highly sophisticated blend of three polyester fibres, including an advanced elastomeric binder fibre. With sophisticated and refined blends of both coarse and fine fibres, the Birch is engineered to provide support and recovery. The Sareer Birch is rigorously tested to show outstanding performance and durability, retaining its comfort and support for many years. Free from FR chemicals, the polyester used in this mattress is inherently flame retardant. With sustainability at the forefront, the polyester within this mattress is 100% recyclable at the end of life and can be upcycled into an alternative product. This mattress features a generous layer of memory foam equivalent that gives the mattress a medium feel and offers even weight distribution. The memory foam moulds to your body and offers gentle support to lessen pressure point discomfort.