Bed Size Guide

The below chart lists the most popular bed sizes in the order of smallest to largest:

A UK cot size is 1 foot 9 inches x 4 foot (1'9" x 4'), equivalent to 53 x 120cm, or 21" x 48", whilst a cot bed (or toddler bed – see below) measures 2 foot 3 inches x 4 foot 6 inches (1'9" x 4'), equivalent to 70 x 140cm or 27" x 54". This should leave plenty of room for your little one to grow before moving to a toddler bed.

Discover our full range of cots and cot beds here.

A UK toddler bed size is 2 foot 3 inches x 4 foot 6 inches (2'3" x 4'6"), equivalent to 7 x 140cm or 27" x 54". Compared to other bed frames, toddler beds can leave customers feeling confused. Their size isn't too obvious, aside from the fact that they're the stepping stone between cots and small single beds.

Things can get confusing for toddler beds, as they are also commonly called a "cot bed". A "cot bed" is a cot that allows you to take the side off and has toddler-size bed measurements, so it's effectively a cot and toddler bed in one. If you're one of those wondering, "What size is a toddler bed?" don't fret. The toddler bed frame size leaves enough room for your little one to sleep comfortably for years before transitioning to a small single.

However, when you need to decide between all the different themes in our toddler bed range, you'll face an even more challenging decision!

A small single bed size comes in at 2 foot 6 inches x 6 foot 3 inches (2'6" x 6'3"), equivalent to 76cm x 190cm or 30" x 75". This is typically a good size for a child's first bed or a guest bedroom.

The small single-bed frame size means it can suit many children and leaves enough room for some inventive, eye-catching designs.

Discover our full range of small single beds here.

Single bed dimensions are 3 foot x 6 foot 3 inches (3' x 6'3"), equivalent to 90cm x 190cm or 35" x 75". Designed to fit a single mattress, the single bed length and width make them a versatile option for growing children and adults as an extra guest bed.

The most appealing aspect of the single bed size is its versatility; whether you're a growing family or entertaining many guests, single bed measurements ensure everyone has somewhere comfy to sleep. You might notice that most bunk beds sizes are single, though there are other sizes available as well.

Browse our entire collection of single beds here.

A UK small double bed is 4 foot x 6 foot 3 inches (4' x 6'3"), equivalent to 120cm x 190cm or 48" x 75". This bed size is suitable for smaller bedrooms, offering the width of a double bed in a shorter, more space-efficient shape. It can appear similar to a double bed to the naked eye, making "What size is a small double bed?" a common query at Happy Beds.

The small double bed dimensions ensure that it'll be comfortable enough for most adults and growing teenagers to sleep on, and it is often the go-to guest bed for our customers.

Browse our range of small double beds here.

Double bed dimensions are 4 foot 6 inches x 6 foot 3 inches (4'6" x 6'3"), equivalent to 137cm x 190cm or 54" x 75". As one of the most popular bed frames, the UK double bed size is the go-to for couples or single sleepers who like their space. Fitting a double mattress, the double bed width and length make it incredibly versatile.

All in all, double bed measurements are a safe bet for most sleepers. A standard double bed size is one of the most popular frames in the UK for a reason – it works for almost everyone. If this is your bed size, consider our range of double beds.

Of course, if the double bed length or width isn't enough, there are always more regal options…

King-size bed dimensions are 5 foot x 6 foot 6 inches (5' x 6'6"), equivalent to 150cm x 200cm or 59" x 79", so you no longer need to ask, "What size is a king-size bed?"! The generous king-size bed measurements make it one of the most-coveted options in the bed world, thanks to its large sleeping space and comfort.

Suitable for standard-size king mattresses, the UK's king-size bed has ample width and length, making it popular nationwide. Whether it's a 5-star hotel or a spare bedroom, king-size beds are everywhere. Discover our king size bed collection today.

The UK's king-size bed size is almost the crème-de-la-crème of beds, but one is even larger.

Super king-size bed dimensions are 6 foot x 6 foot 6 inches (6' x 6'6"), equivalent to 180cm x 200cm or 71" x 79". If you're still wondering, "What size is a super king bed?" just imagine a significantly wider king-size bed. Super king-size bed measurements are made for someone who loves as much space as possible when sleeping.

The super king bed gives you a generous 6 feet of width, an entire foot more than a king size, meaning if you like to have your own space when sleeping next to your partner, this is the bed frame for you.

Go big and check out our super king bed range here.

Sometimes, you'll come across bed sizes that aren't named exactly like the above. You'll often see references to a queen-size or 3/4-size bed.

Queen Size Bed Size

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".

3/4 Bed Size

It may not seem like a common term, but at Happy Beds, we're often asked, "What size is a 3/4 bed?" or "How big is a 3/4 bed?". Simply put, the ¾ bed size is like a queen size, so it's the equivalent of a small double.

European-size bed frames may look the same as their UK counterparts but are much longer. For that reason, European bed sizes are a popular choice in the UK, especially if you're taller.

Discover all the differences between European bed sizes below.

European Single Bed Size

So, what size is a European single bed? It can't be too different from the UK size, right? Well, the European single bed size measures 3 foot x 6 foot 6 inches (3' x 6'6"), which is 90 x 200cm or 36" x 78". This makes them ideal for taller sleepers.

At Happy Beds, we stock a collection of European single beds, so feel free to browse if this lengthier option suits you.

European Double Bed Size

A European double bed size is 4 foot 7 inches x 6 foot 6 inches (4'7" x 6'6"), which is equivalent to 140cm x 200cm or 55" x 78". These are the most common beds found in Europe. Much like other European variants, the advantage of the European double bed size vs UK variants is its length.

European Queen Size Bed Size

So, what size is a European queen bed? A European queen-size bed size is 5 foot 2 inches x 6 foot 6 inches (5'2" x 6'6"), equivalent to 160cm x 200cm or 64" x 78", so wider and longer than their UK equivalent.

European King Size Bed Size

The European king-size bed size measures 5 foot 3 inches x 6 foot 6 inches (5'3" x 6'6"), which equals 160cm x 200cm or 63" x 78". European king-size bed measurements make them a popular option for larger sleepers. If you opt for a European bed, choose a European-size mattress to match. Because the sizes are slightly longer, you could have a gap at the end of your bed frame if you use a standard-size UK mattress.

Your mattress could move with your movements during the night, so choosing a European mattress will help you get the perfect size for your bed.

At Happy Beds, we are often asked, "Are UK and US bed sizes the same?". While there isn't a huge difference, US bed sizes tend to be larger than their UK counterparts. Below, we have a quick UK vs US bed sizes comparison. We have listed US bed sizes in cm, inches and feet for the most popular bed sizes so you can stay informed:

Now that you know what size bed frame suits you, check out our full range. Of course, knowing what size to get is just half the fun. Browse our range to find the perfect design, colour, and headboard whether it's for a stylish divan bed, a spacious ottoman bed or a bunk bed for your kids… gosh, we're getting envious!