This waterproof bed pad has a dependable vinyl barrier to protect your mattress from moisture. Soft, super absorbent brushed polyester face for comfort. Flaps tuck under mattress to keep the pad in place. Pads have an 18" tucktail on each side. Machine wash and dry. Do NOT add softener. Sizes are approximate. Twin (34"L x 36"W), Full (34"L x 61"W), Queen/King (34"L x 80"W).