The deep fill cotton mattress protectors are filled with a luxurious cotton blend and encased in smooth, pure cotton. The breathability of these mattress protectors make them one of the best on the market, giving you everything you need for a restful night’s sleep, including comfort, practicality and total indulgence. - The Fine Bedding Company Deep Fill Cotton Mattress Protector in White, Cotton/Polyester, Size Double - The Fine Bedding Company Deep Fill Cotton Mattress Protector in White, Cotton/Polyester, Size Double