The Smart Temperature collection is the ideal solution for those searching for a complete temperature management sleep system. These pillow protectors are created with the unique Activated Cooling™ technology from Swiss textile innovators HeiQ®, delivering both instant and continuous cooling. On top of the soft, sustainably sourced 200TC cotton pillow protector is a dynamic bio-based cooling system, designed to help you feel cool and comfortable throughout the night.  The intelligent thermoregulation two-step system works by firstly offering a cooling sensation before the first sign of moisture. It can also sense an increase in body temperature which then activates a unique cooling effect allowing moisture to evaporate, mimicking the body’s natural evaporative cooling mechanism. When the body has reached its ideal temperature, the reduced body heat will guide the cooling effect to ease back so that you won’t feel a chill. This technology works through all types of linens. The protector is easily home washable and quick drying, with the technology remaining fully effective even after repeated laundering. Cover: 100% BCI cotton 200 thread count with HEIQ ACTIVATED COOLING™ Filling: 100% Polyester Care  Machine Washable at 40°C, suitable for tumble drying Country of origin: Estonia  Dimensions 48cm x 74cm