Riva Home Alaska Faux Wolf Fur Print Duvet/Comforter Set (Queen) (Grey) Please note: This product is a UK import, the sheets supplied are slightly smaller than the standard US duvet size, it will fit but the duvet may fold at the edge when covered. This is not a comforter but sheets for a duvet. Part of the Alaska range. 50% Cotton, 50% Polyester. Comes in sizes: Single (53 x 79in), Double (79 x 79in), King (90.5 x 87in) and Super King (102 x 87in).