Suggested Retail:$25. SafeRest Twin Extra Long (XL) Premium Hypoallergenic Waterproof Mattress Protector - Vinyl Free. SafeRest Premium Mattress Protectors offer protection against dust mites, fluids, urine, perspiration and allergens making them especially helpful for those with kids, pets, allergies or incontinence. As we sleep we shed thousands of dead skin cells, which can quickly accumulate providing an ideal environment for dust mites. SafeRest mattress protectors trap dust mites, allergies and skin cells on the surface of the protector where they can be easily washed away during suggested quarterly launderings. This helps provide a cleaner more allergen free sleep environment for you and your family.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. PAID DELIVERY AND 7 DAY ALTERNATE PICK-UP ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.