sheetsnthings Solid 600 Thread Count, 100-Percent Cotton, Sateen Weave, King Size, 4 Piece Sheet Set (Ivory) 100% Cotton Material: 100% Cotton, Sateen Weave - 600 Thread Count per Square inch. The higher the thread count, the thicker, more durable and longer lasting the material King Size 4-Piece Sheet Set Includes: ONE King Flat Sheet 110 Inches Wide by 102 Inches Long, ONE King Fitted Sheet 78 Inches Wide by 80 Inches Long and TWO King Pillowcases 20 Inches Wide by 40 Inches Long each This Sheet Set is Durable, Comfortable, Absorbent and Breathable Fully Elasticized Deep Pocket Fitted Sheet for a Secure and Snug Fit -15 Inch Deep Pockets to Fit Up To 18 Inch Deep Mattress. Flats and pillowcases has 4 Inches Hemming & Piping WASHING INSTRUCTIONS: Machine wash in Cold Water only. Delicate Cycle with mild detergent. No bleach, Dry with Low Setting. To avoid wrinkles, we highly recommend to put your sheets on your bed right after pulling them out from your dryer