When choosing a bed, the most important decision you'll make is the size. You hear people say "single," "twin," "full," "queen" and "king," but how do you know what these terms mean? The dimensions below will give you a clearer picture of mattress sizing. According to the Better Sleep Council, an actual bed's dimensions could vary by an inch or so.
Single
A single bed is also known as a twin bed. Its measurements are 39 inches by 75 inches. It sleeps one person. Some mattress retailers carry the "XL twin," which is 5 inches longer than the standard.
Full
A full bed measures 54 inches wide and 75 inches long. The full bed is also called the double bed. It's designed to sleep two people, though it's just 15 inches wider than a twin.
Queen
A queen-size bed is 60 inches by 80 inches. It is the most popular mattress choice, according to the Better Sleep Council.
King
The king-size bed is 76 inches wide and 80 inches long. It is the widest standard mattress sold in the U.S. and Canada.
California King
Available in some stores is the "California King," which is longer yet slightly narrower that the normal king mattress. It measures 72 inches by 84 inches.
