The Ultimate Guide To Australian Mattress Sizes

Double or queen bed — what's the difference? If you're here, you're probably mattress shopping and trying to figure out what size you need. We'll skip the spiel and take you straight to Australian, UK and US standard bed and mattress sizes. We'll also include some help in finding the right size for you based on your bedroom and personal situation.

Australian bed sizes

Australian bed size comparison table

Before we dive into the details, here's a quick reference for all standard Australian bed sizes:

Bed size	Centimetres (cm)	Millimetres (mm)	Inches (in)
Single bed size	92 x 188 cm	920 x 1880 mm	36 x 74 in
King single bed size	107 x 203 cm	1070 x 2040 mm	42 x 80 in
Double bed size	137 x 188 cm	1380 x 1880 mm	54 x 74 in
Queen bed size	153 x 203 cm	1530 x 2040 mm	60 x 80 in
King bed size	183 x 203 cm	1830 x 2040 mm	72 x 80 in
Super king bed size	203 x 203 cm	2040 x 2040 mm	80 x 80 in

Australian vs US vs UK bed sizes

Australian bed sizes don't always match up with what you've got overseas. There are also differences in what each country calls certain sizes — an Australian 'double' is a US 'full'. An Australian 'queen' is a UK 'king'.

Just keep in mind that retailers like IKEA may also use European (EU) dimensions, with some of their mattresses and frames following the European standard of being slightly longer (usually 200cm).

Pairing a standard Australian mattress with a longer European frame can leave a small gap, causing pillows to slip or sheets to fit loosely. Therefore, it's always a good idea to double-check the exact measurements in the product description before you buy.

We've tried to make it easier by including sizing information on some of the more common sizes you'll find in any given country.

Size name	Australia	United States	United Kingdom
Single/Twin	92 x 188 cm	99 x 191 cm	90 x 190 cm
Double/Full	137 x 188 cm	137 x 191 cm	135 x 190 cm
Queen/UK King	153 x 203 cm	153 x 203 cm	150 x 200 cm
King/UK Super king	183 x 203 cm	193 x 203 cm	180 x 200 cm

You'll notice most of these only differ by a few centimetres. There may also be small differences from manufacturer to manufacturer.

Bed size and dimension breakdown

Let's get into the nitty-gritty of each size and who they're actually designed for.

Single bed dimensions

At 92 x 188 cm, single beds are an obvious pick for individual sleepers. Single mattresses work perfectly for kids' rooms, guest rooms or for anyone living in a studio apartment where every centimetre counts.

King single bed dimensions

King single beds measure 107 x 204 cm, giving you 15 cm more width and length than a standard single. They're good for teenagers or for taller adults where there's not enough space for a queen.

Double bed dimensions

Double beds come in at 138 x 188 cm. While they can fit two people, it'll be cosy. They're great for single sleepers who want extra room to spread out. This size also works well in smaller bedrooms where a queen won't fit.

Queen bed dimensions

Queen beds measure 153 x 204 cm. They give couples enough space to sleep comfortably without being too big for most bedrooms. They're great for master bedrooms and larger guest bedrooms.

King bed dimensions

King beds are 183 x 204 cm, offering maximum width for couples who value their personal space. They're perfect if you've got the bedroom space — just remember that they can be tricky to manoeuvre through doorways!

Super king bed dimensions

At 204 x 204 cm, super king beds are the ultimate in sleeping space. They're the best pick for couples who really want to spread out and have bedrooms large enough to accommodate them.

What size mattress should I buy for my bedroom?

Choosing the right bed size isn't just about how many people are sleeping in it. Your bedroom size and personal sleep needs all play a part in finding the perfect fit.

How to pick a mattress based on room size

Before you fall in love with a particular bed size, grab a tape measure and get the real dimensions of your room. Measure wall to wall, but also note where doors swing open and where windows and built-ins are.

Space around the bed is also important. You need at least 60 cm of walking space around the bed for comfortable movement.

Here's what size bed and mattress we recommend based on common bedroom sizes:

Bedroom size	Recommended bed size
2.5 x 3.0 m	Single or king single
3.0 x 3.0 m	Single, king single or double
3.0 x 3.5 m	Double or queen
3.5 x 4.0 m	Double, queen or king
4.0 x 4.0 m +	Queen, king or super king

How to pick a bed based on who's sleeping in it

The number of sleepers is obvious, but consider sleep styles too. If you or your partner are "starfishers" who spread out, size up. If you sleep close together, you might be completely fine with something smaller.

Height matters as well. Taller people (over 180 cm) might be more comfortable on a king single, and will be much more comfortable in queen or king sizes for couples.

Finding your perfect bed size in Australia

Time to buy a new mattress ? The right bed size will make a huge difference to your sleep quality and how your bedroom feels. Whether you need a single for a kids' room or a super king for your master suite, getting the size right makes all the difference. Take time to measure your space properly and figure out what you need (and want!).

Browse our full range of bedroom furniture and mattresses to see what works best for your space and budget.

Bed sizes Australia FAQs

What size is a double bed in inches?

An Australian double bed measures 54 x 74 inches. It's worth noting that this is slightly different to double beds in other countries.

How wide is a queen bed?

A queen bed is 153 cm (60 inches) wide and 204 cm (80 inches) long. This makes it 15 cm wider than a double but 30 cm narrower than a king size.

What's the size of a king size mattress?

King size mattresses measure 183 x 203 cm (72 x 80 inches). They're 30 cm wider than queen beds, giving couples plenty of personal space.

How long is a double bed?

Double beds are 188 cm (74 inches) long. This is 15 cm shorter than queen and king beds, which are 203 cm long.

What is the width of a double bed?

The width of a double bed is 138 cm (54 inches). This gives you 46 cm more width than a single bed but 15 cm less than a queen.