From Noble Excellence, this pillow protector features: Protect your pillow with this 230 thread count cotton pillow protector that comes with the addition of Phase Change Material (PCM) technology The PCM technology is cool to the touch and creates the perfect cool temperature that will help you sleep in a cool, comfortable environment This cooling protector features a zipper closure, that adds protection to your pillow and fends off stains and dust mites from getting on your actual pillow (pillow sold separately) machine wash and dry 230 thread count Premium cotton Jumbo approx. 20" W x 28" L King approx. 20" W x 36" L  each size sold separately Imported.