A King Mattress is a large bed size designed to provide ample sleeping space for individuals or couples. It typically measures 76 inches wide by 80 inches long, making it one of the largest standard mattress sizes available. This extra space allows for comfortable movement during sleep and is ideal for those who prefer more room. King Mattresses come in various types, including memory foam, innerspring, and latex, catering to different sleep preferences. They are often paired with a matching King bed frame and bedding to create a cohesive look in the bedroom. This size is popular among families and those who enjoy spacious sleeping arrangements.