This Fogarty all season super king duvet is made from 100% New Zealand wool. Wool regulates body temperature better than any other fibre, promoting a better nights sleep. Wool has natural anti bacterial and anti fungal properties. Because of the unique way in which wool 'breathes' (manages moisture) wool filling is proven to keep you cool when it's hot and warm when it's cold. Temperature regulating across the seasons- no tog rating required. Reduces heart rate for relaxed sleep. Pure new wool provides a calm, relaxed and healthy sleeping environment.