100% Polyester COOLING MATTRESS PAD - Wake up recharged on a mattress pad that feels cool and clean. Our Power Chill Mattress Pad delivers next level cooling with Cool-Hex technology, designed to turn heat into cooling comfort. Ensures a comfortable night's sleep PROTECTIVE AGAINST STAINS & ODORS - Protected with Scotchgard's stain release treatment. Serta technology odor protection inhibits the growth of odor causing allergens, keeping this mattress protector free of stains and smelling fresh NO SLIP DESIGN - SimpleFit patented four corner grip design with extra wide elastic provides a secure fit. Effortlessly stretches to grip any mattress and prevent your mattress cover from shifting during your sleep. Fits like a glove to never slide. Twin size measures 39" x 75" and fits mattresses up to 18" deep WORRY FREE CARE - Machine washable for easy maintenance and convenience! Machine wash mattress pad separately in a cold, gentle cycle. Use non-chlorine bleach when needed. Tumble dry on low. Do not iron. Use large front-loading washer and dryer SERTA - A champion of comfort for all, Serta has pioneered sleep innovation for more than 90 years in more than 150 countries. Every Serta bed is designed to provide superior comfort, including the award-winning Perfect Sleeper and iComfort collections