AeroBed Air Mattress for Kids Inflatable mattress for kids 4 years and older with 50 x 25-inch sleep surface Heavy-duty PVC construction with electronically welded seams 4-inch-high surround safety cushion helps keep children from rolling off the mattress Thick, washable fitted mattress pad with star and moon design. Hand-held AC pump inflates mattress quickly Included AC pump inflates the bed in under a minute