For a comfortable night's sleep, choose M&S' Stay Cool sheet, made in a fitted shape that slips perfectly into place on your mattress. It's made from a luxuriously smooth lyocell-rich fabric, with fine natural fibres that wick moisture away to keep you cool all night long. M&S' StayNew™ technology means the sheet looks and feels like new, wash after wash. A non-iron finish helps to make life that bit easier.