Homelux Ultra Soft Premium Quality Quilted Waterproof Microfiber Deep Pocket Mattress Cover, Twin Size Microfiber Prolong the life of your mattress by keeping it sanitary and safe Protects from liquids, allergens, bed bugs, dust mites and bacteria Machine washable long wearing stay-soft polyester material Breathable waterproof membrane with anti-microbial treatment Twin Size: 39" by 75", deep pocket fits 16" mattress