Biloban Waterproof Mattress Encasement (4/5/7/9/13/17Inches) Twin Xl, Low Product Details Polyester Fit great: Twin XL (39 in x 80 in) - Fits 8 to 10 inches deep. High-quality zipper: To avoid the zipper getting stick or dislodged when changing the mattress cover, we use the best zipper on this mattress protector. Also, the quality of stitches you can trust which will not popped and ripped. 100% Waterproof: With breathable and waterproof membrane, this mattress protector is more durable to wash. Six-sided premium mattress protector blocks perspiration and liquids. Six-Sided zipper mattress cover: Our zippered mattress protector completely encloses the mattress, acting like a protective layer over the top, bottom and sides of the mattress. Customer?s Satisfaction Guarantee: We?re sure you will love our encasement mattress protector! But in case that our products don?t meet your needs, replacement or money back, no questions asked! Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.