Correspondent and Matching sheet set to Hepburn Comforter Set and Clark Black white polka dots comforter set Mattress Pocket size: 16 inches Pattern: Check. Color: Black and White Material:100% Cotton. 220 tc Set includes: 1 flat sheet, 2 pillowcase. 1 fitted sheet , Twin xl 1 pillowcase Dimensions: Queen-Full: Fitted sheet 60"*80"*16"(pocket） Flat sheet: 90"90" Pillow Case: 20"*26"*2"(flange) King: Fitted sheet 78"*80+16"(pocket) Flat sheet: 108*90 Pillow case: 20"*26"*2(flange) 100% natural cotton fiber Breathable Okeo tex 100 certified Four side of fitted sheet with elastic band, easy to take out and put on.