Product Detail By Perfect Fit From Amazon.com With Free Shipping With Sales & Deals $40.74 FREE shipping go to store Amazon.com Aller-Free 6-Sided Complete Mattress Encasement/Protector, Twin X-Long, White Aller-Free 6-Sided Complete Mattress Encasement/Protector, White Sleep worry free knowing your mattress is protected against bed bugs, dust mites and other Allergens.