About this item:[list][*]Supportive: This Shredded Memory Foam Pillow Filled with a mix of cooling gel-infused memory foam and 3-dimensional hollow fiber, This Rayon Derived from Bamboo pillow set offers firm support that is both ergonomic and consistent throughout the night.[*]Thermoregulating: This reversible firm pillow features a side with a Q-Max rating of 0.4, delivering instant cooling relief upon touch. Its bamboo-derived rayon side further promotes breathability for seamless comfort.