Stay cool all night with Martex Brrr Cooling Effect Solid Sheet Set. The Brrr° Triple Chill Effect technology actively draws heat away from your skin, while the 60% cotton and 40% Brrr° polyester blend wicks moisture and dries quickly. With a smooth 300 thread count weave, these sheets deliver a crisp, cool feel that lasts. OEKO-TEX certified for safety. Machine washable. Available in Twin through King sizes.