MyPillow® fabric is treated to be dust mite resistant. machine washable and non-allergenic. Exclusive medical fill stays cool regardless of sleep position. MyPillow® adjusts to all sleep positions. Cover is 100% cotton; fill is 100% protuberance shredded polyurethane foam. Standard/Queen measures 18.5" W x 28" L. King measures 18.5" W x 34" L. Machine wash. Ten-year warranty. Made in the USA.