Mattress size guide: what's the difference between US, UK, and EU sizes? (2023)

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Like so many things including clothing and shoes, mattress sizes are different depending on which country you're in. This means that you need to take a bit of care when you're buying the best mattress online, because you could easily buy the wrong one. Looking at a King mattress on a North American website? It won't be the same size as a King mattress in the UK.

To stop you making a costly mistake, in this article we've set out the most common mattress sizes in the USA, the UK and the EU. And to ensure that everything's the right size on your bed, we'll also take a look at the standard sizes for duvets and pillows.

Bear in mind, however, that these should be considered guides rather than the absolute final word; there's a fair bit of inconsistency across the mattress industry, so you should always check the measurements of a mattress rather than going solely on the listed size, because these can vary between companies. Before we get going, however, we'll provide you with a few tips on how to find the perfect mattress size for your requirements.

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How to choose the right size of mattress

The first thing to consider is the bed frame itself. If you already have that, then it’s just a case of measuring its length and width to make sure that it will fit. However, if you’re ordering both bed and mattress together, then you’ll have more leeway to find the right size of mattress for your specific needs. (If you're looking for something suitable for bigger bodies, head to our dedicated guide to the best mattress for heavy people.)

The general rule of thumb is that your mattress should be at least 10cm (4 inches) longer than the tallest person who’s going to be using it. Any less, and you’re going to end up flailing off the end of the bed and getting cold feet on a winter’s night.

Shopping for a single bed? Put your hands behind your head and measure the distance between your elbows. The width of your mattress should ideally be a little bit wider than that. The one exception is if you have problems snoring; then you might want a narrower mattress to discourage you from sleeping on your back and encourage side sleeping instead.

If you're a couple then things get more complicated. What’s important is how you and your partner actually sleep in practice: how much you move around, whether one of you starfishes, and so on. If you tend to disturb each other a lot, it may be worth investing in a large size mattress and bed, to give each of you a better chance of quality sleep.

Mattress size guide: what's the difference between US, UK, and EU sizes? (1)

(Video) 6 Mattress Sizes - Tips to Avoid Picking the Wrong Mattress Size

(Image credit: Ketut Subiyanto from Pexels)

You also need to be able to fit your bed and mattress into your room. So it’s important you measure the space you have available carefully before purchasing. That said, even if you can fit a Super King into your room, and can afford it, ask yourself whether you actually want to. Perhaps you’d prefer more floor space instead?

Finally, check whether there will be any obstacles to getting the bed and mattress into the room, particularly if you have narrow or windy stairs. Otherwise, you might end up with a large bed cluttering up your living room for weeks, and all the added cost and hassle of having to return it.

What do UK mattress sizes mean?

Although the UK hasn’t completely abandoned imperial measures – we still drink pints and drive for miles, for instance – many of our goods are now measured using the metric system. And mattresses are no exception.

Below, we list all the main mattress sizes in the UK and their dimensions in centimetres, and in brackets you’ll find a conversion into feet and inches. But do be aware that these conversions are rounded up and not exact. So if space in your room is very tight, we’d still urge you to make your calculations using the metric side of your tape measure.

Finally, a note on the UK Queen size. Usually, a Queen is the same as a Small Double. However, that's not always the case. Sometimes it's the same as a Super King (with US sizing, a Queen size is always bigger than a Double). So when shopping for a Queen, it should be fairly clear by how the models are prices, but we'd urge you to double-check the actual dimensions too.

  • UK Small Single mattress: 75 x 190cm (2’6″ x 6’3″)
  • UK Single mattress: 90 x 190cm (3' x 6'3")
  • UK Small Double (sometimes called Queen) mattress: 120 x 190cm (4' x 6'3")
  • UK Double mattress: 135 x 190cm (4'6" x 6'3")
  • UK King mattress: 150 x 200cm (5' x 6'6")
  • UK Super King mattress (occasionally also called Queen): 180 x 200cm (6' x 6'6")
  • UK Large Emperor mattress: 213 x 213cm (84” x 84”)
  • UK Caesar mattress: 245 x 220cm (96” x 87”)

What do EU mattress sizes mean?

Mattress size guide: what's the difference between US, UK, and EU sizes? (2)

(Video) Bed Size Dimensions - What Size Mattress Should You Buy?

(Image credit: Michael Gault from Pexels)

The countries of the European Union (which now no longer include the UK), use the metric system for everything, mattresses included. If you're in the UK or USA, you're most likely to encounter EU mattress sizes when shopping at IKEA.

Below, we list all the main mattress sizes in the UK and their dimensions in centimetres, and in brackets you’ll find a conversion into feet and inches.

But as with the UK list above, be aware that these conversions are rounded up and not exact. So if you need to make accurate measurements, always use the dimensions given in centimetres.

  • EU Single mattress: 90 x 200cm (3' x 6'6")
  • EU Small Double: 120 x 200cm (4’ x 6’6”)
  • EU Double mattress: 140 x 200cm (4'7" x 6'6")
  • EU King mattress: 160 x 200cm (5'3" x 6'6")
  • EU Grand King mattress: 180 x 200cm (5'11" x 6'6")

What do US mattress sizes mean?

(Image credit: Christopher Jolly on Unsplash)

As with most things, American citizens still use old English measures to measure their mattress sizes. Below, we list all the main mattress sizes in the USA and their dimensions in inches, and in brackets you’ll find a conversion into centimetres.

(Video) Buying your next mattress: What to look for

These conversions are rounded up and not exact, though. So if you want to make accurate measurements to calculate the size of mattress you need, do stick to the measurements in inches.

Finally, for those unfamiliar with American mattress sizes: no, we haven't made a mistake. The terms 'Twin' and 'Single' are used interchangeably, however illogical that might sound.

  • US Twin / Single mattress: 39” x 75” (99 x 191cm)
  • US Twin XL mattress: 39” x 80” (99 x 203cm)
  • US Full / Double mattress: 54” x 75” (137 x 191cm)
  • US Queen mattress: 60” x 80” (152 x 203cm)
  • US Super Queen mattress: 66” x 80” (166 x 203cm)
  • US King mattress: 76” x 80” (193 x 203cm)
  • US Cal King mattress: 72” x 84” (183 x 213cm)
  • US Super or Texas King mattress: 80” x 98” (293 x 249cm)

What are the standard duvet sizes?

Mattress size guide: what's the difference between US, UK, and EU sizes? (4)

(Image credit: Soak&Sleep)

The standard sizes for duvets basically follow the size of the mattress. That doesn't mean they're the same size as the mattress, though: they need to be a little bigger in order to cover you adequately. That said, if you're a couple who tends to "fight" over the duvet in your sleep, you might be better off with the next size up. Below you'll find the standard dimensions of different sized duvets in the UK, EU and USA. (Again, though, be aware that there is a lot of inconsistency across the industry on the application of these measurements.)

Standard duvet sizes: UK

  • Standard single: 135cm x 200cm (53" x 79")
  • Double: 200cm x 200cm (79" x 79")
  • King Size: 225cm x 220cm (89" x 87")
  • Super King: 260cm x 220cm (102" x 87")
  • Emperor: 290cm x 235cm (114" x 92")

Standard duvet sizes: EU

  • Single: 160 x 210cm (62" x 82")
  • Double: 200 x 200cm (79" x 79")
  • King: 240 x 220cm (94" x 87")
  • Super King: 260 x 220cm (102" x 87")

Standard duvet sizes: US

  • Twin / Single: 59'' x 79'' (50 x 201cm)
  • Full/Double: 80'' x 80'' (201 x 201cm)
  • Queen: 90'' x 88'' (229 x 224cm)
  • King Size: 90'' x 102'' (229 x 259)
  • Cal King: 94" x 104" (239 x 264)

What are the standard pillow sizes?

(Image credit: Snuggledown)

If you thought all pillows were the same size, you'd be very wrong. Pillow sizes varying hugely from company to company, and region to region. There are, however, some generally agreed standard sizes for pillows which are listed below. As ever, though, always check before buying that the brand is question actually conforms to these measurements, as application of them is fairly inconsistent.

Standard pillow sizes: UK

  • Standard / Oxford : 50 x 75cm (20" x 30")
  • Standard Continental / Square: 65 x 65cm (26" x 26")
  • Large Continental: 80 x 80cm (32" x 32")
  • Single Bolster: 90 x 50cm (35" x 20")
  • Double Bolster: 137 x 50cm (54" x 20")
  • King Size Bolster: 150 x 50cm (59" x 20")
  • Super King Bolster: 180 x 50cm (71" x 20")

Standard pillow sizes: Europe

  • Standard: 65 × 65cm (26" × 26")
  • Continental: 80 × 80cm (31" × 31")

Standard pillow sizes: USA

  • Standard: 20 × 26" (51 × 66cm)
  • Jumbo: 20 × 28" (51 × 71cm)
  • Queen: 20 × 30" (51 × 76cm)
  • King: 20 × 36" (51 × 91cm)


Are UK and US mattress sizes the same? ›

American mattresses tend to be either wider, longer, or both wider and longer than their British counterparts, and for that reason it is difficult to establish a true 'translated' size.

Is European double the same as UK double bed? ›

Euro Double

Slightly wider and slightly longer than a standard UK double mattress. If you bought a double bed from a European manufacturer like Ikea, you will probably need this size.

What is European size mattress? ›

A European double bed and mattress measures 140cm wide and 200cm long. This is equal to 4 feet 6 inches wide and 6 feet 6 inches long. They're the most common EU bed size, offering plenty of sleeping space without taking up too much room.

Are beds smaller in Europe? ›

King Size Beds and European Mattress Sizes

The closest mattress in size from continental Europe is a 72 inch by 78 inch mattress, which is still smaller than the standard 76 by 80 inch king size in the U.S. If you have American king size bed, you should avoid European mattress sizes altogether.

Are UK and EU bed sizes the same? ›

The biggest difference between the two size categories is that European are usually slightly bigger than their counterparts in the UK. This extra length and slightly wider width provides just a little more space to sleep in.

Are European mattresses the same size as American? ›

European mattresses are similar in size to their American counterparts, but they do not match exactly. European sizes are also different from UK mattress sizes. Custom Mattress Makers can help determine the best size for your EU size bed.

What is a double bed in USA called? ›

A double bed and a full size mattress have the same dimensions, 54 inches by 75 inches. In fact, the terms “double bed” and “full size mattress”, are often used interchangeably. If you refer to mattress sizes, both “double” and “full” are the exact same.

Why are European beds so comfortable? ›

The European mattress includes an innerspring foam structure that adds a comfort layer that's usually made from something like foam or some other material. The right spinal support is the key to a good night's rest, and European-designed mattresses offer exactly that.

Is a double bed in Europe a queen? ›

5 answers. In Europe a double bed is either 4ft 6 or 5ft wide. In the US you would call it a Queen or King.

Are European bed sizes different? ›

European bed sizes are not the same as American bed sizes!

There, mattress sizes are different and they refer to them as single, double, king, and super king. A European single bed is 35.5 inches by 79 inches, which is the smallest European mattress size.

Is a UK double the same as a queen? ›

A queen size bed is wider than a single bed but smaller in width than a double bed, which is why a small double mattress and bed can suit two people sleeping close together as well as solo sleepers.

What size is a UK mattress? ›

UK Mattress Size Guide
Imperial (ft/in)
Mattress SizeMattress WidthMattress Length
Single Mattress3 feet6 feet 3 inches
Small Double Mattress4 feet6 feet 3 inches
Double Mattress4 feet 6 inches6 feet 3 inches
3 more rows
10 May 2019

Why do European beds have two duvets? ›

Pros of Two Duvets

If you get separate duvets, you can each choose the weight of the duvet that suits your body's temperature. As our friend Minna Skovbo put it, “It's complete madness having to juggle a duvet the size of Finland without accidentally suffocating someone.

What is a queen size bed in Europe? ›

In continental Europe and the United Kingdom standard measurements for queen-size beds are 160 x 200 and 152 x 203 cm (63 x 79 and 60 x 80 inches in the United States).

Are beds smaller in the UK? ›

In the States they have twin, full, queen and king beds and mattresses. There are a few other specialist sizes, the most popular being the California king. In the UK our standard bed sizes are single, double, king size and super king size.

What is the equivalent of a queen size bed in UK? ›

In the UK, the queen size bed size is effectively a small double. This means the queen size bed dimensions and measurements are 4 foot x 6 foot 3 inches (4' x 6'3"), equivalent to 120cm x 190cm or 47" x 75".

Do UK mattresses fit IKEA beds? ›

IKEA sells beds & mattresses in the UK that are standard within E.U. countries, often referred to as Continental Mattress & Bed sizes. This means that any IKEA double bed/mattress at does not match the exacting dimensions of a UK standard double mattress/bed. This can be said for all continental mattress & bed types.

Why are European beds split? ›

The significance of the duvet system on European double beds is that there will be two separate covers, ie: each person has their own twin-sized duvet. This may seem strange to Americans that are used to having one big comforter for two people, but it's actually not a bad deal.

Is queen or king bed bigger UK? ›

A queen-sized bed in the UK, measuring in at 4' x 6'3,” is smaller than a king sized bed which boasts more space at 5' x 6'6”. A queen bed is a small double bed and the perfect solution for those who would benefit from a wide sleeping space but have a bedroom where floor space is limited.

Do two twins make a king? ›

No, two twin beds do not make a king bed. Twin beds are 5 inches shorter than king size mattresses, so will make a shorter mattress. But, two twin XL beds will make a king bed. They are 38 inches wide by 80 inches long, and combine to be the length and width of a standard king size mattress.

Why do Americans call single beds twins? ›

The term originally came about because hotels often placed two single beds – “twin” single beds – in the same room. Some twin beds are designed to be bought and used in pairs.

What do Americans call a single bed? ›

In America, a bed suitable for a single person (child) to sleep in is known as a twin bed, whereas in England it is a single bed.

Why do hotel beds feel so good? ›

Hotels beds are incredibly comfortable thanks to their use of mattress toppers. These can significantly adjust mattress firmness and the quality of your rest. A mattress topper is simply an added layer of cushioning that rests on top of your old mattress and provides support and extra levels of comfort.

Which beds do 5 star hotels use? ›

Upscale hotels usually use luxury mattresses that are either hybrid , traditional innerspring , or memory foam mattresses. Hybrid mattresses are becoming particularly commonplace, as they strike the balance between supportive innerspring coals and body-cradling memory foam.

Is queen or double bed bigger UK? ›

The Queen size mattress is a better match for individuals who want to stretch out with more width as well as length as the queen is longer than the double. The Queen measures 152 x 202cm and is a perfectly suited and size mattress for couples, still allowing floor space in the average size bedroom.

Is a double bed in Italy the same as a queen? ›

Most of the time when they say Double it is a Queen size. The standard widths of typical Italian beds are: Single bed (Twin bed in North America): 80 cm wide X 190 (or sometimes extra long at 200 cm long) Standard Matrimoniale or Double bed (like Queen in North America): 160 cm wide x 190 cm long.

Why do hotels push beds together? ›

In that case, yes hotels often use single beds strapped together to make a double bed. It gives them the flexiblity to change the configuration of the room and make it a twin or a double.

What is the most common bed size in the UK? ›

Double Bed Size (135cm x 190cm)

The most popular standard UK bed size of the bunch. Measuring 135cm x 190cm double beds are popular with couples as they can easily accommodate two adults.

Are king size beds an American thing? ›

The short version: the basic sizes for American beds are twin, full, queen, and king, in ascending order. The basic sizes for British beds, respectively, are single, double, king, and super-king. Single bed and double bed are understood and used in the US, but they are not precise bed sizes there.

What size is a queen size bed in USA? ›

Queen Size Bed Dimensions. A Queen size mattress is 60”W x 80”L. This is the most popular mattress size in the United States right now and is a comfortable fit for single active sleepers, couples, and those who may share the bed with children or pets.

Does two single mattresses equal a double? ›

Connecting two single beds together makes what size bed? A single size mattress is 90cm long, or 3' by 6'3. By connecting twin beds together, you'll get a 180cm wide bed with the same length. By contrast, a super king size mattress is 180cm by 200cm - or 3 feet by 6 feet 6 inches.

How do I know my mattress size? ›

Measure the Length: Measure the length, in inches, from the head of the mattress to the foot of the mattress. If necessary, repeat for box spring. Measure the Width: Measure the width, in inches, of the mattress from side to side. If necessary, repeat for box spring.

What is the size difference between mattresses? ›

Mattress Sizes and Dimensions
Mattress sizeDimensions (Width x Length)
Full54" x 75"
Queen60" x 80"
Olympic Queen66" x 80"
King76" x 80"
7 more rows
1 Oct 2022

Why did people sleep in separate beds in the 50s? ›

The proclamation may have proved less than accurate, but for almost a century between the 1850s and 1950s, separate beds were seen as a healthier, more modern option for couples than the double, with Victorian doctors warning that sharing a bed would allow the weaker sleeper to drain the vitality of the stronger.

Why do British people sleep in separate beds? ›

Why do the royals sleep in separate beds? Reportedly, the reason why some royals chose to sleep in different beds all comes down to an upper-class tradition which originated in Britain. According to Lady Pamela Hicks, Prince Philip's cousin, the aristocracy “always have separate bedrooms”.

What is a German bed? ›

A German double bed is typically 180 cm x 200 cm (71 inches x 78.7 inches) altogether, so the width is between a U.S. Queen and King, although the length is a bit shorter than both.

Is a queen bigger than a double Europe? ›

The Double is also called a "Full" and is larger than a Twin but smaller than a Queen. We usually book rooms with Queen size beds but the website makes it sound as though the Doubles are larger.

What is a king bed called in Europe? ›

Bed SizeWidth x Length (cm)Width x Length (inches)
EU – King160 x 200 cm63” x 79”
EU – Grand King180 x 200 cm71” x 79”
UK – King152 x 198 cm60” x 78”
UK – Queen or Super King183 x 198 cm72” x 78”
4 more rows

Do European hotels have queen beds? ›

By normal European standards, the one bed is a double or full sized bed, not a queen or king. If you need two separate beds we will need to request a twin room and by hospitality definition, this a room to sleep two people in separate beds.

What size bed do most couples have UK? ›

The majority of British couples still sleep in a standard double size bed which is only 135cm (4ft 6”) wide. This provides each user with just 67.5cm or about 2ft 3” of space each which is less than we give a baby in a cot!

What are American bed sizes? ›

Mattress Size Chart
Full54" X 74"
Queen60" X 80"
King76" X 80"
California King72" X 84"
2 more rows

Is it better to have a big or small bed? ›

So, when it comes to beds, bigger is better! The more space you have in bed, the more comfortably you'll be able to sleep. So, it makes sense to invest in the biggest bed you can afford, provided it also fits comfortably in your bedroom.

Is a UK king bed the same as a US king bed? ›

The UK super king size bed measures 6'0” x 6'6”. An American king is 6'4” x 6'8”. The California king is extra long and is 6'0” x 7'0”. We can then add to this list our small single at 2'6” x 6'3” and small double at 4'0” x 6'3”.

Is a US twin bed the same as a UK single? ›

Twin / Single 39" 75" 39" x 75" Small, so easy to fit in. Often used for guest rooms. The range of British bed sizes is smaller than that of the US - and British beds themselves are usually smaller then their US version with the same name.

Is large in UK same as USA? ›

Large size in the US normally corresponds to a UK size 34. However, there can be differences by brand. Best is to look your body measurement up in our table above.

What size is American Queen bed in UK? ›

US Queen (152 x 202 cm)

The Queen measures 152 x 202cm and is a perfectly suited and size mattress for couples, still allowing floor space in the average size bedroom.

Will US queen sheets fit UK King? ›

An American Queen size bed measures 60" wide and 80" long, a UK King size bed measures 60" wide and 79" long, so UK King bedding will work fine on an American Queen.

Is a queen size bed the same as a double UK? ›

A queen size bed is wider than a single bed but smaller in width than a double bed, which is why a small double mattress and bed can suit two people sleeping close together as well as solo sleepers.

Is a queen bed a double UK? ›

In the UK, the queen size bed size is effectively a small double. This means the queen size bed dimensions and measurements are 4 foot x 6 foot 3 inches (4' x 6'3"), equivalent to 120cm x 190cm or 47" x 75".

Why do Americans call it a twin bed? ›

The term originally came about because hotels often placed two single beds – “twin” single beds – in the same room. Some twin beds are designed to be bought and used in pairs.

How do UK sizes compare to US sizes? ›

As you can see in the chart below, the US size is 2 sizes smaller than the UK size. For example, if you need a US women's size 12, you would need to order a UK women's size 16. For a US women's size 18, this would be a UK women's size 22.

Do UK sizes run bigger? ›

Tips When Buying in UK Sizes

If you are a woman go for higher size than your US size when buying clothes. If you are a US 4, in UK size, you will be a UK 8. If you are a man, go for the same size when buying clothes. For example, a size US 30-32 is the same as a UK 30-32.

What is US large in EU? ›

3 more rows

Is king or queen bed bigger in USA? ›

Both king and queen size mattresses are the same length, but the king is 16 inches wider than the queen. Depending on factors like room size, number of sleepers, and price you can choose which size is best suited for you.

Which is bigger king or queen bed in USA? ›

The queen mattress dimensions are 60 inches (5 feet) in width by 80 inches (6 feet, 8 inches) in length. The king mattress dimensions are 76 inches (6 feet, 4 inches) in width by 80 inches (6 feet, 8 inches) in length.

Is a double the same as a queen bed? ›

Is a double bed the same as a queen? No, a queen size bed is 6 inches wider and 5 inches longer than a double bed. A double (or full) bed used to be the gold standard for couples until the queen size mattress came along. Now, double beds are mostly used by single people.


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