A king-size bed is a large bed designed to provide ample space for sleeping. It typically measures 76 inches wide by 80 inches long, making it one of the biggest standard bed sizes available. This size is ideal for couples who want extra room to move around during the night or for individuals who enjoy a spacious sleeping area. King-size beds come in various styles and can accommodate different types of mattresses, including memory foam, innerspring, and latex. They often require larger bedrooms to fit comfortably, and bedding accessories like sheets and comforters are specifically made for this size to ensure a proper fit.