Maintain your mattress's quality, lifespan, and comfort with the Brookstone Ultimate Mattress Protector - Waterproof. CleanSense Allergen technology protects your mattress from allergens including pollen, pet dander, dust mites, while also protecting from odors and spills. Soft and breathable, this mattress protector fits mattresses up to 17in deep and is also ideal for your box spring. Easy care and machine washable. Ultimate protection for your mattress Safeguards your mattress from allergens, pet dander, dust mites, odors, and spills White 100% Polyester Machine washable Made in China White Features & Benefits: Ultimate protection for your mattress Safeguards your mattress from allergens, pet dander, dust mites, odors, and spills Waterproof mattress protector CleanSense Allergen technology Soft and breathable OEKO-TEX® STANDARD 100 100% polyester Fits mattresses up to 17in Great for box springs Easy care in a machine wash Twin: 39in x 75in +15in Full: 54in x 75in +15in Queen: 60in x 80in +15in King: 76in x 80in +15in California King: 72in x 84in +15in Imported Care Instructions: Machine washable