King-size dimensions: The dimensions of a king-size mattress are 76 x 80 inches, which is 16 inches wider than a queen-size mattress. The surface area is 6,080 square inches.

Queen mattresses are by far the most popular mattress size. They offer enough room for the average person to sleep comfortably with a partner or pets, and they fit in most bedrooms.

However, a tight budget doesn't mean you can't get a queen size mattress – our best cheap mattress guide has multiple queen size mattresses for under $500. However, these mattresses typically ...

A queen mattress typically measures 60" x 80", so you’ll get an extra 18 inches of walking space around the bed compared to a king size mattress. And queen sizes are easier to move around, flip ...

A queen mattress fits in smaller rooms, with the recommended size being at least 10 by 10 feet to fit comfortably. Because a king mattress is larger, it's recommended for rooms that are 12 by 12 ...