Twin Flat sheet 68 x 96 Fitted sheet 39 x 75 x 16 1 Pillowcase 30 x 20. Kids birthday party childrens festival 100% cotton sateen sheet set by roostery every order helps an independent designer earn a living. Queen Flat sheet 90 x 102 Fitted sheet 60 x 80 x 16 2 Pillowcases 30 x 20.