Rajlinen Luxury Terry Cotton Waterproof Mattress Protector White Solid Fitted Style Breathable Waterproof Membrane Safe Rest Premium (Queen-XL Size 18" deep, White Solid) 100% Terry Cotton Made In India Perfect for regular use to protect your mattress from liquid spills. Top surface Made of 100% terry cotton. Has a water protection membrane. Machine wash in cold water all side wall made with 100% Egyptian Cotton fabric Waterproof Mattress Protector Queen-XL Size (60X84+18 Inch) White Solid Fitted style Breathable Waterproof Membrane SafeRest Premium Made with strong, 3/8" or 3.1 cm or 31 mm elastic sewn completely around the Mattress Protector! The thickest All-Natural Cotton Terry Surface available (5.3oz/yd2) In order to ensure a snug fit, you want to order 3" or 8 cm of fabric to the pocket depth of the fitted sheet. For example, if your mattress height is 10" or 25 cm the fitted sheet approximately 13" or 33 cm deep to ensure there is enough fabric to grab around the corners of the mattress.