Designed for colder climates or sleepers who really feel the cold, our Thermal Wool Quilt is packed with luxurious warmth. The extra Airlight wool layers retain maximum heat while the super fine cotton casing means the quilt is still comfortably light. Made using Airlight TechnologyTM, our Thermal Wool Quilt features our highest amount of wool layers, enclosed in a superlight cotton casing to retain more heat for colder environments. Breathable fibre: Good sleep has the power to rejuvenate your body and leave you feeling more invigorated every day. And a healthy natural sleep starts with wool.