Spill-proof sheet creates an inflated border that keeps your bed mess-free. The border inflates up to 5-1/2" high, so you can get slippery, wet, and wild. The soft and slick vinyl is durable, easy to clean, and simple to maintain. Just blow it up and fill it up with a bottle of Nuru Gel, or any liquid you please! The vinyl material is lightweight but strong, and is a great way to get truly dirty. Measures 78.5 in. by 67 in. by 5.5 in.