What are the Dimensions of a Full Size Bed?

A standard full-size mattress (commonly referred to as a ",double", bed) is 54 inches in width, and 75 inches in length. This translates to just a few inches over 2 feet each of sleeping space for 2 people. If you are over 5’8", inches tall, I recommend nothing smaller than a queen-size mattress, which is a full five feet wide and 80 inches in length. It is also the most popular mattress size in America at this time.