No more counting sheep with this Sertapedic Wont Go Flat Pillow. These Sertapedic Wont Go Flat Pillows offer a comfortable way to get a good night of sleep. Made of a cotton and polyester blend, the 300 thread count pillow contains a supportive form core surrounded by plush, SupraLoft polyester fiber fill. These pillows are designed to maintain their shape to ensure lasting comfort and support. This firm support is ideal for back or side sleeping positions. The fill is hypoallergenic, made from 100 percent polyester fill so you can breathe easy. Can be spot cleaned. Quality is assured with a 3 year manufacturers warranty if purchased in the US. Serta has been pioneering comfortable sleep since 1931. Every Sertapedic pillow is designed to provide exceptional comfort. With a broad range of support levels and technology to choose from in the Sertapedic line, there are options to fit every sleep position. Not just sorta comfortable. Serta comfortable.