Handcrafted in Devon using sustainable, platinum grade British wool this sumptuous mattress topper creates the perfect sleeping environment. Each topper adds approximately 4cm of extra comfort and is fitted with broad elastic straps to fasten to each corner of the mattress, providing flexibility for differing depths of mattresses. The cotton casing is woven especially for Devon Duvets and is brushed on both sides to create a soft feel and a higher resistance to sliding on the mattress. Main Fabric:100% brushed cottonWarranty:5 years