Polyester fibre filling siliconized polyester fiber filling for added softness and durability soft and durable 100% polyester cover 30cm depth machine washable, tumble dry on a low heat setting add extra comfort and warmth to your bed with our supersoft heavy fill mattress topper. Designed with a soft and durable 100% polyester cover and filled with siliconized polyester fibres, this topper offers incredible softness and long lasting resilience. The microfibre fabric enhances the luxurious feel, while the heavy fibre filling ensures added warmth—perfect for chilly winter nights. With a generous 30cm depth, it provides a snug fit for your mattress, and its machine washable design makes maintenance a breeze. Transform your sleep experience and enjoy cosy comfort all season long! This collection is verified by oeko tex and independently tested for harmful substances as well as manufactured using sustainable processes under socially responsible working conditions.