It’s the world’s most comfortable pillow, featuring a unique triple layer design. The surface white layer is made of conforming memory foam. The middle yellow wedge ensures proper neck support, while the blue base layer prevents the pillow from flattening. A crescent shaped cutout accommodates the shoulder area, allowing the head to nestle in the center of the pillow for optimum support and comfort. The famous contour shape supports and aligns the spine for a great nights sleep.