Mattress Size Guide

Cot Bed 70cm x 140cm
2ft 3" x 4ft 6"
Single 90cm x 190cm
3ft 0" x 6ft 3"
Double 135cm x 190cm
4ft 6" x 6ft 3"
King Size 150cm x 200cm
5ft 0" x 6ft 6"
Superking 180cm x 200cm
6ft 0" x 6ft 6"
Emperor 200cm x 200cm
6ft 6" x 6ft 6"
Small Single 75cm x 190cm
2ft 6" x 6ft 3"
Small Double 120cm x 190cm
4ft 0" x 6ft 3"
Euro Single 90cm x 200cm
3ft 0" x 6ft 6"
Euro Double 140cm x 200cm
4ft 7" x 6ft 6"
Euro King 160cm x 200cm
5ft 3" x 6ft 6"
(W x L x H)
Double 135cm x 190cm x 39cm
4ft 6" x 6ft 3" x 1ft 3"
King Size 150cm x 198cm x 39cm
5ft 0" x 6ft 6" x 1ft 3"
Superking 180cm x 198cm
6ft 0" x 6ft 6" x 1ft 3"

What size mattress do I need?

Here's where we share the information you need to understand our bed and mattress sizes. As well as sharing the measurements of each mattress and bed size, you'll also be able to see the differences between each bed size. Choosing the correctly sized bed and mattress is more important than you might think - your sleep quality affects every aspect of your life, so it's not something to rush! Because the amount of space you have to sleep in is so important, we recommend choosing the largest bed and mattress your bedroom and budget allow for. If you're choosing a mattress to use with an existing bed frame or divan, make sure it matches - choosing the wrong size mattress can mean a prematurely damaged mattress, which is bad news for your bank account and your sleep. Once you've chosen the right bed and mattress, make sure you protect your investment with a mattress protector. A quality mattress protector will prolong the life of your mattress, giving you many more restful, healthy nights' sleep.

What size is a cot bed?

Our cotbed mattress measures in at 70cm and 140cm. It’s especially important to make sure this is a good fit for your cot or cotbed as large gaps between the mattress and sides of the cot can be dangerous to babies and small children.

What size is a single mattress?

The standard single bed dimensions are 90cm x 190cm in the UK. This is 15cm wider than a small single (75cm x 190cm), 10cm shorter than a Euro single (90cm x 200cm) and 45cm narrower than a double bed. A single bed is the bed most of us associate with childhood, and they're perfect for kids and teens. A young child will be ready for a single bed, instead of a cotbed when they're around three years old, although there's no hard and fast rule - it's about what's right for you and your child. Single beds are also ideal for smaller guest rooms - indeed, some adults prefer sleeping in a single bed to sharing with their partner. Single beds are a great choice if you have a small bedroom; it's what makes them such a good choice for children's bedrooms or spare rooms when guests stay.

What is a twin bed? 

A twin bed is the American term for a single bed. It's another example of Americans using different words to us Brits - just like they say 'faucet' and we say 'tap', Americans use the term 'twin bed' where we say 'single bed'!

What size is a double mattress?

Standard Double Bed & Mattress Size 

The standard double bed size dimensions in the UK are 135cm x 190cm, and it is the most common double bed size in the UK. The standard double bed is 45cm wider than a single bed and 15cm narrower than a king size bed. In contrast, a small double bed measures 120cm x 190cm and a Euro double bed measures a slightly more generous 140cm x 200cm. The standard double bed is the smallest bed you'd want to share with another person but is also ideal for anyone who loves to spread out at night. A standard double bed is an excellent choice for young adults and older teens - it gives them space to spread out and accounts for their increasing maturity. However, it's also the natural choice for a smaller bedroom as it will only take up some of the space, leaving room for bedside tables or other furniture. For this reason, a double bed is often the default option if you're kitting out a guest bedroom or if your main bedroom is more compact. We'd recommend double beds for growing teens, cosy couples who like snuggling up together and singletons who adore spreading out, starfish-style, as they slumber.

Small Double Bed and Mattress Size 

The small double bed measurements in the UK are 120cm x 190cm. It's 15cm smaller than a standard double bed and 30cm wider than a standard single bed. Why choose a small double bed? We say it's the perfect option for those who want something larger than a single bed and like the space and impact of a double bed but need more space. This makes the small double bed a brilliant choice for children's and teenagers' bedrooms - giving them extra sleeping space without taking up all the floor space. The small double bed is also an excellent compromise for guest rooms, giving your guests the comfort of a double bed, even if your guest room is on the smaller side. Double Bed vs.

Queen Size Bed 

A standard double bed measures 135cm x 190cm, and a queen size bed measures 120cm x 190cm. This means that a queen size bed has the same measurements as a small double bed. Choose a standard double over a queen size bed if you have the additional space to accommodate the extra width without compromising on the floor space of your bedroom. If space is an issue, opt for a queen size bed as its more compact dimensions will take up less space.

What size is a king size mattress?

The standard king size bed measurements are 150cm x 200cm. This is 15cm wider than a standard double bed, enough to give you and your sleeping partner extra room to stretch out. However, a king size bed is 30cm narrower than a super king size mattress. It also gives you more space from top to bottom. In contrast, a Euro king size bed is 160cm x 200cm. If you have the space, a king size bed is an excellent choice for couples, as it gives both of you enough space to stretch out comfortably without disturbing the other person. You will need a larger room to accommodate a king size bed - and remember that this is for the room's length and width - it's a full 10cm longer than a standard double bed.

King Size Beds vs Super King Beds

King size beds are ideal for bed sharers who are happy to sleep close to one another. Although a king size bed is larger than a double, you'll definitely know you're sharing a bed with another person. A super king bed gives you and your sleeping partner an extra 30cm of space. This is especially helpful if one (or both) of you are very tall, get hot at night or move around a lot while sleeping.

What size is a Super King mattress?

The UK super king mattress and bed dimensions are 180cm x 200cm. That's a blissful extra 30cm of width compared to a king size bed. It's also the same width as two single beds pushed together. Although a super king bed might seem indulgent, when you realise it's the same as two single beds, you can understand why some people struggle to share a double or king size bed. A superking bed gives you and your sleeping partner enough space to sleep undisturbed. It's especially suitable for tall sleepers, those who overheat at night, and people who move a lot during their sleep. A super king bed is also perfect for parents of young children - there's plenty of space for little bodies to snuggle into if they wake in the night or want to join you for an early morning cuddle.
However, you'll need a large bedroom to accommodate a super king bed - we'd recommend your bedroom is at least 60cm wider and longer than your bed, so that's 240cm wide and 260cm long. More space is better - after all, you want to walk around your bed comfortably and safely.

How long does a mattress last?

A mattress should last for around 7 years if well looked after and with the help of a mattress topper and protector.

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