The most popular size. Measuring 60” in width and 80” in length, the Queen size mattress can accommodate a wide range of sleepers. Couples who want to be closer together, young adults looking for a larger sleeping surface, Teens that have outgrown their Full size bed, and single sleepers often buy Queen size mattresses. Starting at $199.99, Ortho offers Queen-size mattresses for every budget. Now that you know the size mattress you prefer, shop below by Brand, Comfort Level, or Type to find the perfect mattress for you.