Waterproof Design The mattress protector waterproof design helps extend the life and quality of your mattress. It protects against overturned drinks and messy spills, which means your mattress remains free from unwanted odors and stains.100% Breathable Cotton Made of 100% cotton with a 320 gsm, the mattress protector offers a wonderfully soft, yet durable fabric that's both breathable and luxuriously smooth to the touch. It's suitable for all the seasons, from hot summers to cold winters, and it creates not only soothing comfort but also reliable protection and peace of mind.