Ely’s & Co. Waterproof Jersey Knit Sheets are made of 100% High Quality Combed Jersey Knit Cotton fibers and lined with a waterproof lining, protects your mattress while providing an ultra-soft, cozy surface for your little one. Our t-shirt soft sheets are breathable, lightweight and feel great against your baby’s sensitive skin. These sheets create a warm, and welcoming environment for baby. Unlike woven cotton, jersey knit fabric is naturally wrinkle-free which makes for easy care. Featuring a waterproof TPU lining (Thermoplastic Polyurethane), designed to create a barrier between your baby’s mattress and any leaky messes or spills. Our waterproof lining ends the need to use an added mattress cover for your Crib, Changing Pad, Playard and Bassinet. These sheets are the first choice for the modern, practical, stylish parent!