Thomas & Friends Childrens Boys Reversible Twin Quilt Cover Bedding Set (Twin) (Blue) 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. Thomas & Friends quilt set to fit twin bed. Reversible design. Size: Duvet cover 54in x 79in, Pillowcase Size 19in x 30in (all sizes approx).