Features:

• Waterproof yet breathable 100% terry cotton cover
• Stretches to fit mattress up to 22" high
• LightweightOnly 1/8" thick so won(TM)t detract from feel of mattress
• Machine washable and sterilizable up to 250 deg.
• 10 Year Limited Warranty
• Combined purchase of Purify Mattress Protector and a new mattress protects your mattress warranty