The Mattress Size Guide

Mattress Size Guide

Your journey starts here. When it comes to finding the perfect mattress, you need to firstly know how big you can go. This quick guide will give you the lowdown on all the UK mattress sizes and European mattress sizes we offer, as well as useful tips for choosing the perfect size for your needs.

View UK mattress sizes

View European mattress sizes


UK standard mattress sizes

What size is a single mattress?

UK single mattress size
UK single mattress dimensions

What size is a single mattress?

 

  • UK dimensions: 3' x 6'3" (90 x 190cm) 
  • Ideal for: children, guest rooms and attic rooms
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What size is a small double mattress?

UK small double mattress size
UK small double mattress dimensions

What size is a small double mattress?

 

  • UK dimensions: 4' x 6'3" (120 x 190cm) 
  • Offers a cosy solution if you don't have enough room for a double
  • Ideal for: teenagers, guest rooms and attic rooms 
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What size is a double mattress?

UK double mattress size
UK double mattress dimensions 

What size is a double mattress?

 

  • UK dimensions: 4'6" x 6'3" 135 x 190cm)
  • Popular with individuals/couples moving into a new flat with limited room
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What size is a king mattress?

UK king mattress size
UK king mattress dimensions 

What size is a king mattress?

 

  • UK dimensions: 5' x 6'6" (150 x 200cm)
  • Large enough to help reduce partner disturbance
  • Ideal for: master bedrooms
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What size is a super king mattress?

UK super king mattress size
UK super king mattress dimensions

What size is a super king mattress?

 

  • UK dimensions: 6' x 6'6" (180 x 200cm)
  • The ultimate in comfort and luxury
  • Ideal for: master bedrooms 
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What size is a cot mattress & cot bed mattress?

cot mattress & cot bed mattress sizes
UK cot mattress and cot bed mattress dimensions 

What size is a cot mattress & cot bed mattress?

 

  • UK cot mattress dimensions: 1'9" x 3'9" (60 x 120cm)
  • UK cot bed mattress dimensions: 2'3" x 4'6" (70 x 140cm)
  • All Silentnight mattresses come with important BSI number: BS 1877-102011+A1:2012, which means they meet British Standards safety requirements for bedding. 
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Useful tips for choosing the right size

Useful tips for choosing the right size

Ensure that the mattress dimensions are 10cm longer than the tallest person using the mattress. Nobody wants cold feet on a chilly winter's night after all.

You also want to be able to stretch when you wake to really start the day. Get the width right by tucking both hands under your head and if your elbow touches the edge of the mattress or the person next to you, you may need a larger mattress.

If you're giving your bedroom a makeover make sure you measure the space you have in your room. It could be the difference between a modest double and a mega super king.


European mattress sizes

What size is a European single mattress?

EU single mattress dimensions

What size is a European single mattress?

 

  • European dimensions: 3' x 6'6" (90 x 200cm)
  • Ideal for: children, guest rooms and attic rooms
SHOP SINGLE MATTRESSES

What size is a European double mattress?

EU double mattress dimensions 

What size is a European double mattress?

 

  • EU dimensions: 4'7" x 6'6" (140 x 200cm)
  • Popular with individuals/couples moving into a new flat 
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What size is a European king mattress?

EU king mattress dimensions 

What size is a European king mattress?

 

  • EU dimensions: 5'3" x 6'6" (160 x 200cm)
  • Reduces partner disturbance
  • Ideal for: master bedrooms
SHOP KING MATTRESSES

FREE UK delivery available

FREE UK delivery on orders over £49

Mattresses and divans delivery service

  • FREE UK delivery to a room of your choice
  • Professional 2-man delivery service

When do we deliver?

We deliver most items between Monday to Friday, 9am-6pm.

How much is delivery for orders under £49?

Orders of or under £49 will come with a £2.50 delivery charge.

Find out more about our delivery service here

60 night comfort exchange

Our comfort exchange gives you 60 nights to get really comfortable before making a decision. If you're still not loving your new mattress within 60 nights from delivery, you can exchange it for another mattress. It's as simple as that.

Here's how it works:

  1. Pick your new mattress on the official Silentnight website
  2. Sleep on it for at least 28 nights as it can take a little time to adjust to a new mattress
  3. If you're not happy after the initial 28 nights you can exchange it for a new mattress, as long as you claim within 60 nights of delivery

Read more about the 60 night comfort exchange

Total Quality Assurance

Before it gets to you your bed has been through a lot

  • All our mattresses, upholstered bases and headboards are made in the UK
  • All of our product meet European standards and exceed British standards
  • All our Upholstered beds and mattresses ordered through Shop.Silentnight are made to order
  • This means they are not stored for prolonged periods of time and are shipped to you direct from our factory.

Testing

  • Accredited onsite laboratory to bring the best products to you
  • Every Silentnight mattress type is tested to ensure it exceeds all British standards
  • Silentnight products are fully certified by the Forest Stewardship Council®(FSC®) FSC-C104461
  • We are full members of the Furniture Industry Sustainability Program.
Superbrands The Sleep Council nbf approved