Cotton Our Waterproof Bassinet Sheet Set features an eco-friendly waterproof TPU lining (Thermoplastic Polyurethane), designed to create a barrier between your mattress and any leaky messes or spills. Our waterproof lining ends the need to use an added mattress cover for your bassinet. We designed a 100% Jersey Knit Cotton wall, reinforced with a flexible elastic band so you can be rest assured that your baby is safe, snug, and sound. Our waterproof sheets’ innovatively designed elastic band offers a flexible fit while supplying a safe and secure, snug fit to bassinet and mini co-sleeper mattresses. The comfort of our soft and breathable, lightweight, 100% Jersey Knit Cotton creates a buttery soft sleeping surface for your baby to sleep on. This convenient two-pack features a classic grey Chevron and dot pattern to complement baby Boy & Girls’s nursery décor. You can be rest assured that your baby’s sleep surface will always be covered and protected with a clean, stylish, and soft cotton sheet with this two-pack! Flexible fit sheets compatible with Dream On Me Karley Bassinet, Delta Children Deluxe Gliding Bassinet, Dream On Me Meghan Portable Bassinet, Majesty Rocking Baby Bassinet, Big Oshi Emma Newborn Baby Bassinet, Stow 'n Go Bassinet, HALO Bassinet Swivel Sleeper Luxe Plus Series Bassinet, Dream On Me Mackenzie Bassinet, SwaddleMe by Your Side Sleeper, Deluxe, Dream on Me Lacy Portable 2-in-1 Bassinet. Actual Dimensions: 32" x 16." Since our waterproof sheets double as a mattress protector, they make for an easy clean up after the occasional accident. Simply pull the bassinet sheet right off the mattress and throw it in the washing machine. Our sheets are machine washable and should be tumble dried on low.