The Twillery Co.® memory foam pillow is adjustable freely to your sleeping style you can either add or remove the filling by opening the inner zipper to find the perfect comfort level - for side back stomach or other types of sleepers. Whether you like plush medium or firm pillows this sleeping pillow is for you. The Twillery Co.® sleeping pillow selects premium(pure) shredded foam which allows air through easily and the cooling gel particles inside will prevent heating up. You will feel just like sleeping in the clouds. Our special design of sleeping pillows will provide full support for your head and neck. It can allow the memory foam to contour more closely to your body providing the perfect support for your head shoulder and neck. With luxury fiber the daily pillow brings softer and more breathable. The material wicks moisture away from the skin and resists odor. Without any harmful substances good resilience not easy to deform.