Hello Kitty Childrens Girls Sommerwind Reversible Duvet Cover Bedding Set (Double) (Pink) Please note: This product is a UK import, this duvet cover supplied is 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 a cover for a duvet. Girls reversible bedding set with Hello Kitty branding. Features floral and polka dot design. Single duvet size: (approx) 53in x 79in.