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 viscose 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.