About this item Extra Deep Pocket King Sheet Set – 1 flat sheet 105"x102", 1 fitted sheet 80"x78"x21", 2 pillowcases 20"x40". Perfect Deep Mattress Fit - Mellanni specifically designed these sheets for extra DEEP mattresses and they are a perfect fit for 17 inch, 18 inch, 19 inch, 20 inch and even 21 inch mattresses. Waterproof Mattress Protection – Safeguard your mattress against spills & accidents – from food & beverages to perspiration & body fluids. The premium, water-resistant TPU barrier provides 100% wetness & stain protection. Ideal for kids, adults, & pets. Silent, No-Shift Design – Sleep soundly with no crinkling noise underneath. The all-around elastic & box stitching ensures that this easy-on topper stays put all night long. Perfect for King size (78" x 80") mattresses up to 21" deep. Easy Care – Machine washable, stain resistant, and durable. Simply wash cold on a regular cycle with no bleach or fabric softener. Tumble dry on low heat ONLY with no fabric dryer sheets. Mellanni Lifetime Promise – Mellanni is a different kind of company that prides itself on providing the absolute best customer service in the industry. If you are not satisfied with your purchase at any point and for any reason, you can return it with no questions asked. That's the Mellanni Promise (in fact, you don't even have to send back the product) › See more product details