Kink Wet Works Waterproof Fitted Sheets - KingThis sleek black fitted sheet protects your mattress during your wettest and wildest liquid play. Sturdy elastic at each corner and a generous 13 inch pocket keep this sheet securely in place even on extra thick mattresses, and the waterproof material is heat sealed at every seam to make it 100 percent leak proof, get as messy as you like, and just toss it in the washing machine when you are finished. Measurements: 80 inches in length, 78 inches in