What makes MyPillow Products different.- We use our unique Patented Inter-Locking Poly Fill for all our pillow products - Every aspect of our pillows, from the casings, cases, poly fill and manufacturing of our pillow products all are made and manufactured here is the USA.- This allows for the pillow to be adjusted to your sleep needs but also give you the perfect amount of support to stay asleep all night - Our Patented Fill is open cell as well which allows all our pillows to stay more cool than most pillows available - Washable and dryable(washing instructions are included with every pillow) - We believe so much in our pillows that we offer a 60 day and a 10 year warranty! (Toppers include a 5 year warranty)