Wooltara Classic 350 GSM Washable Wool Fleece Underblanket Feels like sleeping on air The Wooltara Classic 350 GSM Washable Wool Fleece Underblanket is made with superwash treated Australian wool which provides a sensation of luxury that cannot be matched by other bedding materials. The millions of air pockets created by wool's three-dimensional structure give unique insulating qualities. In winter, these air pockets hold body warmth and insulate against the cold. Wool keeps the body dry by absorbing up to 30% of its weight in the moisture given off by the body, up to 1 litre each night, without feeling damp. A deep pile will form an air barrier between you and the mattress, allowing airflow. This ventilation draws the moisture away, keeping you comfortably dry and cool even on those sticky nights. The fully fitted pure cotton elasticated skirt stretched to fit most mattresses up to 45 cm.