Australian Bed and Mattress Size Guide
Looking for a new mattress?
Learn what sizes are available and which one is perfect for you and your sleep style.
Your best fit for a great sleep
We’ve created this bed and mattress size guide to help you find the perfect mattress size for your bedroom. Whether it’s our range of Sealy Single beds for growing children, Double beds for teenagers and house guests, or luxurious Queen and King beds for extra space and comfort, Sealy has the perfect mattress size for a better night’s sleep — all handmade in Australia to fit your lifestyle.
See how these sizes fit you, your room and your needs.
| AU Mattress Size | Width x length (MM) * |
Width x length (CM) * |
Width x length (Inches) * |
|---|---|---|---|
| Single | 915 x 1900mm | 91.5 x 190cm | 36 x 74.8" |
| Single XL | 915 x 2030mm | 91.5 x 203cm | 36 x 80" |
| King Single | 1055 x 2030mm | 105.5 x 203cm | 41.9 x 80" |
| Double | 1385 x 1900mm | 138.5 x 190cm | 54.5 x 74.8" |
| Queen | 1525 x 2030mm | 152.5 x 203cm | 60 x 80" |
| King | 1835 x 2030mm | 183.5 x 203cm | 72.2 x 80" |
| Super King | 2030 x 2030mm | 203 x 203cm | 80 x 80" |
*All Sealy mattresses are proudly handmade in Australia. Due to the handmade nature of our products, there may be +/- 15mm difference in the final product from the size guide.
What mattress size do you need?
Getting the right size mattress can transform your sleep experience. Here is what you should consider when finding the best mattress size for you:
- Room dimensions: Ensure there’s enough space around the bed for easy movement and comfort. We recommend leaving at least 1m distance between the walls and your bed.
- Number of sleepers: Are you a single sleeper, or do you share your bed with a partner and your children? The more people in the bed, the more space you’ll need to sleep undisturbed.
- Body size and shape: Taller sleepers, or those who prefer extra space to stretch out, should consider mattresses with more length, like a Queen, King, or Super King. There should be at least 15cm allowance from the edge of the mattress to your feet. Similarly, larger bodies need more width to prevent feeling cramped.
- Sleeping positions: Side sleepers may need extra room to move, whilst back or stomach sleepers might be comfortable with less width. This consideration may also affect your preferred comfort level.
Here is a comparison of mattress sizes and who they suit best:
| Mattress size | Best for | Ideal sleeper height | Minimum room size |
|---|---|---|---|
|
Single |
Young children, teenagers, single adults |
5′9″ and under |
7 ft x 10 ft |
|
Single XL |
Growing children, taller teenagers, single adults |
6′2″ and under |
7 ft x 10 ft |
|
King Single |
Growing children, taller teenagers, single adults |
6′2″ and under |
8 ft x 10 ft |
|
Double |
Teenagers, single adults, guest bedrooms |
5′9″ and under |
10 ft x 10 ft |
|
Queen |
Single adults, couples, guest bedrooms |
6′2″ and under |
10 ft x 10 ft |
|
King |
Couples, parents co-sleeping with kids |
6′2″ and under |
12 ft x 12 ft |
|
Super King |
Families with children, luxury sleepers |
6′2″ and under |
16 ft x 12 ft |
7 sizes to choose from
Mattress size guide
915mm x 1900mm
Single mattress
Sealy’s single mattresses are a great choice for children of all ages, and even adults. Sealy’s Single mattresses are 915mm wide and 1900mm (nearly two metres) long so they make a great first bed, but still give adults enough room to move around. One person sleeping in a Single bed has as much room as two people in a King size bed. Single beds are also great space savers, with the dimensions of a single bed fitting into any bedroom.
Not sure if this is your size? Take a look at Sealy’s King Single and Double sizes or use our Mattress Selector to find out which mattress is the right one for you. You can also download our Mattress Guide to help guide you through the process of choosing the right mattress.
Think a single mattress is right for you? Visit your local Sealy retailer to experience a Sealy for yourself. It’s a great way to work out which mattress is right for you – and you’ll soon see why so many Australians choose Sealy.
Available in
Crown Jewel, Exquisite, Elevate, Sealy, Posturepedic Singles, Singles
915mm x 2030mm
Single XL
Children grow fast and Sealy’s super-sized Single XL is a popular choice for parents who want to get the most out of their Sealy mattress’s ten year life span. The Sealy Single XL is the same width as a Single but 2030mm (more than two metres!) long. The long single bed provides extra room to stretch out without taking up too much precious bedroom space. Sealy’s Single XLs are a great idea for holiday homes and guest rooms: put two of them together and you have a King size bed or split them to comfortably accommodate extra adults and children.
Not sure if this is your size? Take a look at Sealy’s King Single and Double sizes or use our Mattress Selector to find out which mattress is the right one for you. You can also download our Mattress Guide to help guide you through the process of choosing the right mattress.
Available in
Crown Jewel, Exquisite, Elevate, Sealy, Posturepedic Singles, Singles
1055mm x 2030mm
King Single mattress
King Single mattresses have both extra width (1055mm compared to 915mm for regular Singles) and length (2030mm), making them a great option for older children, rapidly growing teenagers and taller adults who want more space but don’t have room for a Double or Queen size bed. Families are increasingly choosing to invest in Sealy’s durable King Single size mattress right from the beginning to save the hassle of changing beds as children grow.
While you’ll appreciate the noticeably greater sleep space, Sealy’s King Singles don’t take up too much extra room. They fit neatly into most bedrooms and are effective space savers in apartments.
If you’re thinking about a Sealy King Single bed mattress, why not take a look at our Double and Queen mattresses as well, or use our Mattress Selector to find out which mattress is the right one for you. You can also download our Mattress Guide to help guide you through the process of choosing the right mattress.
Available in
Crown Jewel, Exquisite, Elevate, Sealy, Posturepedic Singles, Singles
1385mm x 1900mm
Double mattress
Double mattresses are great space savers and are a versatile option if you’re looking for a guest bed. They are also a popular pick for teenagers as many bedrooms will accommodate a Double bed.
If you’re thinking of a Double bed, you might also like to look at Sealy’s Queen size mattresses , or use our Mattress Selector to find out which mattress is the right one for you. You can also download our Mattress Guide to help guide you through the process of choosing the right mattress.
Think Sealy’s Double is the right size for you? Visit your local Sealy retailer to experience a Sealy for yourself. It’s a great way to work out which mattress is right for you – and you’ll soon see why so many Australians choose Sealy.
Available in
Crown Jewel, Exquisite, Elevate, Sealy
1525mm x 2030mm
Queen mattress
There’s a good reason why Sealy’s Queen size mattresses are so popular. They are the perfect size for couples – 1,525mm wide and 2,030mm long – so you can stretch out and be comfortable, whilst still easily fitting into most bedrooms.
Sealy’s Queen size mattresses deliver year-round comfort and practicality. Cosy in winter and with enough personal space in summer, the Queen size mattress is only 300mm narrower than a King – in fact, many couples prefer to use a King size doona over their Queen size bed for extra luxury.
Available in
Crown Jewel, Exquisite, Elevate, Sealy
1835mm x 2030mm
King size mattress
Sealy’s King size mattress dimensions are 1835mm x 2030mm, making it perfect for those who like a little more space.
While it is the same length as a Queen, the King size mattress delivers an extra 30cm in width, which means it’s large enough to provide a night of disturbance-free sleep – especially if you have young ones visiting your bed.
If you’ve got a bedroom with enough space to accommodate a king bed this size, there’s nothing like a Sealy King. The mattress sits on two separate bases which means you can get in and out of bed with less partner disturbance, making king beds ideal for shift workers, early risers and restless sleepers.
Think the extra space of a Sealy King mattress sounds just right for you? Visit your local Sealy retailer and try it out in-store for yourself. You’ll soon see why so many Australians choose Sealy.
Available in
Crown Jewel, Exquisite, Elevate, Sealy
2030mm x 2030mm
Super King mattress
Sealy’s Super King size mattress dimensions are 2030mm wide x 2030mm long, offering a deluxe sleeping space for couples who love to stretch out or who have little ones joining them in bed. The primary difference between the King and Super King is the extra 19.5cm in width, meaning more space and comfort to spread out. Research shows that, for many people, the additional space means a more restful, undisturbed sleep.
Sealy’s Super Kings are becoming a popular choice for busy couples who need to be able to sleep well every night and wake refreshed to meet the day’s challenges. If you’ve got a bedroom with enough space to accommodate this size, a Sealy Super King bed is the ultimate sleeping experience. The mattress sits on two separate bases which minimises partner disturbance, making it ideal for shift workers, early risers and restless sleepers.
Available in
Crown Jewel, Exquisite, Elevate
How to measure your bedroom for a mattress
Measure the distance from one wall to the other to determine the room’s length. To allow easy movement around the bed, think about the space you’ll need for clearance. Ensure there’s enough room to open doors, reach closets, and walk around the bed comfortably without feeling restricted.
Average Australian bedroom sizes
See how various bed sizes fit typical Australian bedrooms to see which mattress size we suggest for your space.
SMALL (3 x 3.6m)
AVERAGE (4.2 x 3.9m)
LARGE (5 x 5m)
Mattress selector
Not sure what mattress is right for you?
Simply answer a few questions and we’ll recommend the right mattress based on your unique sleep profile. We will email you your customised results so you can take them in-store to a Sealy retailer near you.
Mattress Size FAQs
What are the mattress sizes in Australia?
In Australia, the mattress sizes are: Single (91.5 x 190cm), Single XL (91.5 x 203cm), King Single (105.5 x 203cm), Double (138.5 x 190cm), Queen (152.5 x 203cm), King (183.5 x 203cm) and Super King (203 x 203cm).
Do mattresses come in standard sizes?
Mattresses come in standard sizes depending on your country. In Australia, the standard sizes are Single, Single XL, King Single, Double, Queen, King and Super King.
What is the most common bed size?
In Australia, the most common bed size is the Queen. This size is ideal for single adults, couples and guest spaces, making it a highly versatile bed that fits into most bedrooms. A Queen size mattress is 152.5 cm x 203 cm.
What size is a double mattress?
In Australia, a Double mattress is 138.5 cm x 190 cm. This size is ideal for teenagers, single adults and some couples, but may not be suited for taller people. In this case, a Queen may be better with an additional 13cm in length and 14cm in width.
What size mattress is best for couples?
The best size mattress for couples is often a Queen, measuring 152.5cm x 203cm. This size is ideal for most bedrooms, whether a main bedroom or a guest space. For those needing more room to stretch out, a King size mattress offers the same length but an additional 31cm in width.
Which mattress should I buy?
The mattress you should buy is dependent on your unique sleep profile. The ideal firmness, size and cost of a mattress is a personal decision and may be different from person to person. If you’re unsure where to start, try our online Mattress Selector.
Which type of bed or mattress is best?
The best type of bed or mattress is one that offers the right combination of support, comfort and durability. There is no single mattress that suits everyone, as we all have unique sleep profiles and lifestyle requirements.
Which mattress is comfortable?
The most comfortable mattress is one that maintains spinal alignment and cushions your pressure points. Sealy Posturepedic mattresses are designed to support your spine, help your muscles relax and allow you to enjoy undisturbed rest.
What is the best mattress in Australia?
There is no mattress that suits every Australian, because we all have different sleep requirements. Sealy Posturepedic® offers various comfort and support options for sleepers of all ages. With world-leading research and accredited product testing, Sealy continues to be Australia’s #1 selling mattress.
How much should I spend on a mattress?
How much you spend on a mattress depends on your requirements. While it is important to consider cost, you do not need to sacrifice quality and comfort if you’re shopping on a budget. If you’re unsure where to start, our Mattress Selector includes budget as a primary consideration.
