Standard Mattress Sizes

Many often ask the question: “What are standard mattress sizes?” Mattresses come in a large range of sizes and dimensions. Custom sizes are also available. Sizes also vary from country to country.

There are 5 standard sizes in North America (USA and Canada): Twin, Full (or Double), Queen, Standard Eastern King and California King Size.

And in Britain (UK) there are 6 standard imperial sizes: Small Single, Single. Small Double, Double, King and Super King.

USA Standard Mattress Sizes and Dimensions

(In inches, width x length)

Twin: 38 x 75
Full: 54 x 75 (also known as Double Size)
Queen: 60 x 80
Standard King: 76 x 80
California King: 72 x 84

In addition there are “extra long” sizes, as well as split mattress dimensions:

Twin XL: 38 x 80
Full XL: 54 x 80
Queen XL: 60 x 84 (also known as a Super Queen Size)
Split Eastern King: comprised of two mattresses each with the dimension of 38 x 80
Split Cal King: comprised of two mattresses each with the dimension of 36 x 84

Britain Standard UK Mattress Sizes and Dimensions

(Imperial Size Dimensions in Inches width x length)

Small Single 30 x 75
Single 36 x 75
Small Double 48 x 75
Double 54 x 75
King 60 x 78
Super King 72 x 78

Offering Mattresses in All Sizes and Dimensions

Here at Absolute Comfort On Sale most of our mattress brands are available in all these sizes. If you can not find the dimension you are looking for, we also offer custom sized mattresses to fit your needs.

Converting Inches to Metric (Centimeters and Meters):

• One inch (1″) = 2.54 centimeters.
• One foot (12″) = 30.48 centimeters.
• One yard = 0.9144 meter
• One meter = 39.37 inches or 1.094 yard