Have you been searching endlessly for an all-cotton mattress pad only to find that they have polyester fill or a polyester backing and skirt. The good news is that your search is over. This mattress pad has a 100% cotton percale top. We quilt the top with a generous amount of cotton fill. Then we go the extra step and add a 100% cotton percale reverse. The skirt is also cotton with just a drop of Spandex to ensure a snug non slip fit on your mattress. Experience the natural cooling and moisture absorbency of sleeping on 100% cotton. Fits mattresses up to 15". Great sleep, it never goes out of style. That's our Sleep Philosophy! 1 Mattress Pad: 39x75+12" MACHINE WASH COLD, GENTLE CYCLE, AND SEPARATELY. DO NOT BLEACH. TUMBLE DRY LOW, REMOVE PROMPTLY. DO NOT IRON. IF THERE IS NO FREE MOVEMENT IN THE WASHER OR DRYER, USE LARGE CAPACITY COMMERCIAL WASHER/DRYER. Materials: 135 thread count cotton percale face and reverse, 6" cloud multi-quilting Filling: 95% cotton, 4% polyester, 1% other, 250gsm Skirt: 12" cotton jersey knit (95% cotton 5% spandex) Product ID 76328903