Snuggle down for a peaceful night's sleep with this anti-allergy duvet. It's made with BI-OME® NTL Margosa treated fabric which deters the growth of dust mites and controls odours and bacteria for freshness. This duvet separates into a 9 tog and much lighter 4.5 tog for the warmer seasons, or you can put them together for a 13.5 tog duvet to help keep you cosy on those cold winter nights.