Common Mattress Sizes
Often times consumers can become confused with all of the differences in mattress measurements found online. 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 and in the system of measurement most common in the respective country. Please keep in-mind that mattress depth (thickness) varies between all mattresses depending on the model itself.
Standard Sizes in Canada & the USA
Mattress sizing in North America is commonly measured and displayed in inches (imperial system).
North American Sizes:
|SIZE||DIMENSIONS (in)||DIMENSIONS (cm)|
|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)||72″ x 84″||182.88cm x 213.36cm|
*Some crib mattresses actually measure 27″ x 51″.
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.
Standard Sizes in Europe and England (United Kingdom)
Mattress sizing in Europe (EU) and the UK is commonly displayed in centimetres (metric system), not inches. In some countries, such as Italy, these sizes are referred to by a different terminology while the measurements remain the same as in other European nations.
|SIZE||DIMENSIONS (cm)||DIMENSIONS (in)|
|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″|
Custom Mattress Sizes
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 extra expense.
All of our organic rubber (latex) mattresses can be custom-to-order in a size made to your preference or requirements. Please contact us via e-mail or speak directly with a Soma Sleep Specialist by calling us at 1-844-276-2337 and we are ready to serve!