Are you searching for a straight-forward, and easy guide to help you understand the different bed and mattress sizes, or dimensions? Well look no further! Soma Organic Mattresses offers the ultimate mattress size break-down in the simplest format possible.

Common Mattress Sizes

Mattress sizes and the system used to measure them change from country to country. All of the mattress sizes listed below are displayed in Width by Length. Please keep in-mind that mattress depth (thickness) varies depending on the specific mattress and it’s composition.

Mattress Size Charts

Standard Sizes in Canada & the USA:

SIZING (NAME) DIMENSION (CENTIMETRES) DIMENSION (INCHES)
Crib*** 28″ x 52″ 71.12cm x 132.08cm
Twin (Single) 39″ x 75″ 99.06cm x 190.5cm
Twin XL (Single Extra-Long) 39″ x 80″ 99.06cm x 203.2cm
Double (Full) 54″ x 75″ 137.16cm x 190.5cm
Queen 60″ x 80″ 152.4cm x 203.2cm
King ("Eastern King") 76″ x 80″ 193.04cm x 203.2cm
California King ("Western King" or Cal King) 72″ x 84″ 182.88cm x 213.36cm

***Some crib mattresses actually measure 27″ x 51″.

Standard Sizes in Europe & the UK (United Kingdom):

SIZING (NAME) DIMENSION (INCHES) DIMENSION (CENTIMETRES)
Twin (Single) 90cm x 200cm 35.43″ x 78.74″
Twin XL (Single Extra-Long) 90cm x 210cm 35.43″ x 82.68″
Small Double 120cm x 200cm 47.24″ x 78.74″
Double 140cm x 200cm 55.12″ x 78.74″
King 160cm x 200cm 62.99″ x 78.74″
Grand King 180cm x 200cm 70.87″ x 78.74″
UK King 150cm x 200cm 59.05″ x 78.74″
UK Super King 180cm x 200cm 70.87″ x 78.74″

It is not uncommon that most mattress manufacturers produce mattresses with a variance of up to 1″ (inch) on both width and length. This can be seen most often when comparing between mattresses made from different materials (such as: rubber (latex) mattresses, coil (spring) mattresses or foam-based mattresses) as well as by different companies (or brands). The official measurements that set the standard are followed as closely as possible and variance in measurement is considered normal by the industry.

Custom-Sized Mattresses:

At Soma, it is our standard practice to speak of and offer our mattresses in the common North American sizes. We are also able to make available certain mattress lines in European sizes without additional expense.

All of our organic rubber (latex) mattresses can be custom-to-order in a size made to your preference and/or requirements. Please contact us by e-mail or speak directly with a Soma Sleep Specialist by calling us at 1-844-276-2337.