This duvet has a 100% cotton cover with fine anti-allergy polyester hollowfibre filling. It is channel stitched to help to keep the filling even across the whole duvet and has a bound edge for a neater, luxury finish. It is available in different tog ratings so you are sure to find the right one for you here.   100% cotton cover Anti-allergy polyester hollowfibre filling Channel stitched Luxury bound edge Tog Ratings: 4.5 tog - A lighter duvet, perfect for using during summer months or in warmer climates 10.5 tog - Ideal for spring and autumn, or for using year-round in a home with central heating 13.5 tog  Ideal for winter months All seasons 9 tog + 4.5 tog The best and most complete option, a 4.5 tog and a 9 tog that fasten together to make a 13.5 tog creating a perfect 3 in 1 duvet Size: Single 135cm x 190cm Double 200cm x 200cm King     230cm x 220cm Superking 260cm x 220cm