White Anti-bacterial Duvet. For a fresher night's sleep, try our 10.5 Tog anti-bacterial duvet. For a fresher night's sleep, try our 10.5 Tog anti-bacterial duvet. Treated to prevent the development of dust mite, bacteria and fungi. With a super soft microfibre cover. Machine washable. Cover: 100% Microfibre Polyester. Filling: 100% Polyester. Super soft microfibre cover Stays fresher and more hygienic Comfortable filling