Red Nomad Waterproof Zippered Encasement Medical Grade Bed Bug Proof & Allergy Reduction Mattress Protector &ndash; Queen Size Polyester POWERFUL PROTECTION  Whether its the little one in the bed with you, or simply a late night spill while you watch your favorite show, Red Nomads 6 Sided Mattress Encasement is there on EVERY side to offer you truly comprehensive protection for your mattress! MEDICAL GRADE  Weve tested again and again, and not only have we created a cover that has a fully waterproof external membrane, but it is designed to reduce allergens and prevent bed bugs and dust mites while you sleep. BETTER BREATHABILITY  As with all Red Nomad products, weve included our patented breathable design to keep you cool throughout the night. This remarkable mattress protector is made of a wonderfully soft polyester knit, and fits any standard mattress. **Box notes 12" but can stretch up to 18"** QUIET  No crinkling under your sheets here! Our specifically soundless design wont keep you up when youre trying to sleep, and is thin enough so as to not effect the feel or comfort of your mattress. Its better sleep and peace of mind, all in one! THE BEST GUARANTEE  For a full 90 days, you are completely covered by a full MONEY BACK GUARANTEE! However, peace of mind doesnt end there, as every cover that leaves the factory is covered by a full 15 year replacement warranty! So, no matter what, youre covered!