For those looking for cooler sleep temperatures, this pillow is ideal for warmer climates or for people who sleep hot. It features a cooling gel-top layer on one side, which provides additional cooling qualities and helps regulate sleep temperatures. The bamboo charcoal memory foam provides a fresh, breathable benefit that improves airflow between you and this comfy pillow. Medium firmness will help retain its shape and adapt to your head size, relieving pressure to ensure a restful night's sleep. Size Standard: 19" x 30" across the loft of the pillow King: 19" 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 Face: 35% Viscose from Bamboo / 65%