RMS Reusable Absorbent Waterproof Sheet Protector was designed carefully by healthcare professionals. The washable underpad can keep your bed sheets dry all night and protect mattress and sheets from moisture and staining caused by incontinence or medical conditions. Offers 4 layers protection -Deluxe blended fabric and premium brushed polyester quilted top, soft polyester fiberfill layer, Absorbent inner layer, and Non-slip latex-free waterproof barrier. Oversized at 72" long to provide maximum protection. Our Sheet Protector is machine washer and dryer friendly. Size 34in. x 72in