This pillow is the only pillow that offers superior comfort and supports guaranteed! Using super soft viscose made from rayon bamboo-this memory rayon from bamboo pillow is softer than cotton, stays cool at night, and best of all is anti-microbial and hypoallergenic. This pillow is soft, shapable and cool, the perfect pillow for any sleeper. It is filled with shredded memory foam and is often called a 3-in-1 pillow as it can be folded in half for a firm, supportive pillow. Lay it flat for a standard medium supportive pillow, or stand it up on its side for extra soft, fluffy support.