For those looking for airy, breathable comfort, this strategically perforated pillow is well-ventilated to help regulate sleep temperature. The carefully perforated bamboo charcoal memory foam provides a fresh, breathable benefit that improves airflow between you and the pillow, keeping you 3 degrees cooler than other fabrics and optimizing the pillow's sleep temperature. Our bamboo charcoal naturally eradicates unwanted odors by dehumidifying the air and wicking away moisture from the pillow fibers and fabrics. Size Standard: 20" x 31" across the loft of the pillow King: 20" x 36" across the loft of the pillow 100-Night Home Trial Feeling every day like you do on vacation is guaranteed with our 100-Night Home Trial. No need to toss and turn over it being right for you - all bedding products can be returned or exchanged within 100 days. Materials Cover: 35% Viscose from Bambo