Our super king size mattresses are the largest available and have been engineered to equally distribute your weight. These mattresses have a width of 6 feet and a length of 6 feet and 6 inches. You are given a luxurious quantity of sleeping space and can even select the best super king sized mattress for you based on superior sleep technology and your own preferences. This size is available in a variety of mattresses, including the pocket sprung luxury super king size mattress, memory foam super king size mattress, and anti-bacterial super king size mattress.