DMI Convoluted Foam Bed Pad Mattress Topper This soft foam bed pad will make your bed a more comfortable place to be. The sculpted foam helps to evenly distribute your weight and improve air circulation, reducing the stress on pressure points. Great for use on hospital or regular beds. Unroll the pad and allow it to sit for several hours or overnight until it expands to its maximum size. Features Soft, comfortable sculpted medical-grade foam provides great air circulation and weight distribution. Egg crate foam is ideal for prevention of pressure sores, pressure point stress and decubitus ulcers. Excellent for use in hospital or home. Unroll pad and allow to sit for several hours or overnight to allow pad to expand to its maximum size. Note: Dimensions are approximate