QuickZip Twin Fitted Sheet in White, 1 Zip-On Sheet + 1 Fitted Base - Use for Bunk Beds and Potty Training 100% Cotton' Imported FITTED SHEETS REINVENTED - QuickZip is a patented two-piece fitted sheet that easily zips off and on. SLIP ON MATTRESS LIKE A REGULAR FITTED SHEET - the fitted base stays securely on the mattress and the Zip-On Sheet zips off and on in seconds - no more wrestling with your mattress PERFECT FOR BUNK BEDS - The only fitted sheet for hard to reach mattresses like bunks, trundles, day beds, lofts, drop-in bed frames. A must for POTTY TRAINING. INCLUDES 1 ZIP-ON SHEET & 1 FITTED BASE - we suggest purchasing at least one extra QuickZip Twin Zip-On Sheet (SOLD SEPARATELY) for convenience. RECOMMENDED BY EXPERIENCED PARENTS - Join the thousands of parents who love QuickZip and declare they will never go back to regular fitted sheets. 100% Cotton, Preshrunk