Sleep & Beyond Organic Waterproof Mattress Protector: Give your mattress the much-needed nourishing layer of protection with our newly introduced GOTS certified organic cotton mattress protectors! Ideal for someone who has allergies to dust mites, mold and mildew and looking for a great investment. Prevents allergens, pet dander, and dust mites from accumulating in the mattress. Superior breathability. Maximum comfort and flexibility. This protector is a long-term investment in the quality of sleep and overall health.