This is our most sumptuous bed linen and has the highest thread count. Made with only the longest, finest cotton fibres, finished using a satin weave, it brings you the ultimate in smoothness and luxury. Deep fitted sheets will also accomodate the depth of a standard sized mattress that's being used with a mattress topper. 100% Cotton The world's most widely used natural fibre, versatile cotton makes the perfect bed linen; cool, lightweight, soft and breathable. 1600 Thread count By twisting yarns together before weaving, we were able to create this bed linen's high thread count. Thread count refers to the number of threads per square inch and, typically, the higher the number the softer and smoother the feel. Reassuringly well made At John Lewis & Partners we test every piece of our bed linen to high-quality standards of durability, colour-fastness, shape and size retention. So you can always rest easy, knowing you've made the right choice. Care instructions We recommend washing this bed linen at 40ºC but it can be washed at 30ºC. Lower temperatures save energy, helping to be kinder to the environment. Sheeting sizes(cm) Double, to fit mattress size L190 x W135cm King, to fit mattress size L200 x W150cm Super king, to fit mattress size L200 x W180cm Emperor, to fit mattress size L200 x W200cm