Aller-Free Ultimate Comfort Knit Mattress Protector, Queen, White 100% Polyester Imported The Aller-free Ultimate Comfort Knit Mattress Protector is an economical solution to add longevity and protect your mattress investment Protective whisper quiet backing is directly laminated to the soft textured knit top to provide a barrier against moisture, dust and dander Breathable design wicks moisture, perspiration and sweat away from the sleeping surface resulting in a cooler, drier and more comfortable nights rest Extra deep stretch skirt fits up to 22" mattresses; Great to use in addition to your favorite mattress pads, enhancers and toppers Queen size measures 60"-by-80"; Hypoallergenic for the sensitive sleeper; Machine washable in cold water; Tumble dry on low heat