This 200 thread count bed linen is made from Egyptian-grown cotton, famed for its high quality. The percale weave gives a smooth matt finish and crisp, cool feel. Deep fitted sheets will also accomodate the depth of a standard sized mattress that's being used with a mattress topper. Egyptian CottonThe long, fine fibres grown exclusively in the Nile Delta make Egyptian cotton one of the world's finest, giving this bed linen both its durability and beautiful softness. Thread CountThis number refers to the number of threads per square inch. Typically, the higher the thread count, the softer and smoother the feel. Reassuringly Well MadeAt 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. Easy Care Finish??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. An easy care finish has been added to minimise ironing and will last wash after wash.