This unique pillow-in-pillow design is built to satisfy all sleepers. The buoyant core and plush, resilient outer layer join forces to support all sleeping positions. Filled with nearly a billion microfibers, the pillow is adaptive and will respond to your movements throughout the night. Complete with a breathable cotton cover, the pillow is machine washable and dryable.100% cotton cover features a breathable percale weave with zipper closure | Standard size | Polyester fabric lining | Polyester microfiber fill | Each down-alternative fiber cluster is individually blown into the cover, making the pillow clump resistant/able to bounce back with a quick fluff | An innovative pillow-in-pillow design; the inner pillow is supportive, while the outer pillow adds a soft touch of fluff | Machine washable; washing your pillow(s) every 3-6 months (seasonally) recommended | Designed in the U.S.; imported