The Fine Bedding Company Spundown Four Seasons single duvet is superbly soft and lightweight. This is the perfect duvet for allergy sufferers and children as you can wash all sizes in a domestic washing machine at 60ºC, the temperature that kills dust mites. Filling Material:100% Smartfil® microfibreGood for allergies:YesMain Fabric:100% Smartfil® MicrofibreSeason:All SeasonTog Rating:9 and 4.5Tumble Dry:YesWashing Instructions:Wash at 60°c, do not bleach, do not dry clean