Australian Mattress Sizes Guide
One of the paramount considerations when buying a mattress in Australia is selecting the right mattress size. In this page, we provide detailed dimensions for each mattress size, helping you make an informed choice. Dive into the specifics of each size to determine which one suits you best. Beyond dimensions, consider room size, sleeping habits, whether you share the bed with a partner or pets, and any specific health concerns when choosing your ideal mattress size. We're here to simplify the process, ensuring you find the perfect fit for a night of rejuvenating sleep.
Australian mattress sizes
Every standard Australian mattress size in centimetres and inches, the smallest room each one fits with a walkway down both sides, who each size suits and the lowest price in our range for that size today.
| Size | Width x length (cm) | Width x length (inches) | Minimum room (m) | Who it suits | Our price from |
|---|---|---|---|---|---|
| Single | 92 x 188 cm | 36 x 74 in | 2.1 x 2.5 m | One child or one adult in a small room | $290.50 |
| Long Single | 92 x 203 cm | 36 x 80 in | 2.1 x 2.6 m | One tall sleeper who needs the extra length | $499 |
| King Single | 107 x 203 cm | 42 x 80 in | 2.3 x 2.6 m | One adult or a teenager who wants more width | $379 |
| Double | 138 x 188 cm | 54 x 74 in | 2.6 x 2.5 m | One adult who likes space or a couple short on room | $399 |
| Queen | 153 x 203 cm | 60 x 80 in | 2.7 x 2.6 m | Most couples and the most common Australian bed size | $439 |
| King | 183 x 203 cm | 72 x 80 in | 3.0 x 2.6 m | Couples who want room to spread out or a child joining in | $539 |
| Super King | 203 x 203 cm | 80 x 80 in | 3.2 x 2.6 m | Couples who want the widest bed made in standard sizes | $999 |
Minimum room allows 60 cm to walk down each side of the bed and 60 cm at the foot, with no wardrobe or drawers in the way. Lengths are the mattress lengths we make: 188 cm for Single and Double, 203 cm for everything else. Bed frames add a few centimetres to each side.
Sizes and prices last checked 18 September 2026. Prices are read from the store as the page loads.
Sizes and Dimensions
What is this guide about?
Finding The Right Mattress Size
Explore the mattress dimensions of all five sizes in this guide, along with other crucial factors to aid your decision-making process when choosing the ideal mattress size for your requirements.
Unlocking Your Ideal Mattress Size
Choosing the right mattress size goes beyond mere dimensions. Consider room size, your sleeping habits, whether you'll be sharing the bed, any specific health concerns, and your budget. Dive deeper into these factors below.
Single Size Mattress
The Single size mattress in Australia measures 92cm x 188cm. It's perfect for children's rooms, smaller bedrooms, or guest spaces where space is limited. Ideal for solo sleepers or kids transitioning to their first big bed.
King Single Size Mattress
The King Single size mattress in Australia measures 107cm x 204cm. This size offers a bit more width compared to the Single, making it an excellent choice for growing children and teenagers. It's also perfect for taller individuals who need extra legroom. The King Single provides the ideal balance between space-saving and comfort, making it a versatile option for various sleeping arrangements.
Double Size Mattress
The Double size mattress in Australia measures 138cm x 188cm. It's a popular choice for couples who want a cozy sleep space or for individuals who enjoy a bit of extra room to stretch out. The Double size strikes a balance between space efficiency and comfort, making it versatile for various bedroom sizes and sleep preferences.
Queen Size Mattress
The Queen size mattress in Australia measures 153cm x 204cm. It's a favorite among couples for its spaciousness and comfort. With ample room to move around, the Queen size mattress ensures a restful night's sleep while still fitting comfortably in most bedrooms. It's a great choice for master bedrooms.
King Size Mattress
The King size mattress in Australia measures 183cm x 204cm. Offering the ultimate in luxury and space, the King size mattress is perfect for couples who want extra room to spread out. It's also ideal for families with children or pets who occasionally share the bed. The King size provides unmatched comfort for a truly relaxing sleep experience.
Let's delve into the factors that play a crucial role in determining your ideal mattress size.
Factor one
Your Room Size
Bedroom sizes can differ throughout a home and between rooms. While the minimum requirement for a room is often 6.5 square meters, here are the average room sizes for accommodating different mattress sizes.
2.7m x 3m
A small bedroom, typically measuring around 8.1 sq.m, is ideal for a single person. This versatile space can serve as a cozy single bedroom, a welcoming guest room, or a comfortable kid's room. Its compact size makes it well-suited for a single or king single mattress,
It accommodates a compact study desk or play area and a small wardrobe or open shelving unit. Ensure a comfortable walking space of at least 60 cm (24 inches) to 75 cm (30 inches) after factoring in radiators and furniture.
3m x 3.4m
An average bedroom, usually around 10.2 square meters, suits a couple perfectly. This adaptable space can function as a charming second bedroom, a hospitable guest room, or a cozy kid's room with two single or king single beds.
Its moderate size allows for a double or queen mattress, leaving plenty of room for storage options along the walls, such as wardrobes and bedside drawers.
4.2m x 4.2m
A master bedroom, typically spanning around 17.64 square meters, offers endless possibilities. This versatile space serves as a luxurious master bedroom, with ample room for a queen or ideally a king-size mattress.
You'll find space for various luxury furniture items, including a king-sized bed, a spacious wardrobe, a desk or home office setup, and sometimes even a cozy sitting area and walk-in closets for those with larger preferences.
Factor Two
Who Are You Sharing The Bed With?
When it comes to selecting the perfect mattress size, there's more to consider than meets the eye. Especially if you're sharing the bed with a partner, kids, or furry friends. Let's explore how each mattress size aligns with your unique sleep needs.
Single Size:
- This one's for solo sleepers or when you're transitioning your little one to their first big-kid bed. It's cozy, it's snug, and it's all yours.
King Single:
- Need some extra stretching space? The King Single, with added length, is great for those who appreciate a overhead stretch. The King Single's got your back (and your toes).
Double Size:
- If you're a master of midnight acrobatics or just like to have more space for yourself, the Double size might be your perfect match. It's also a popular choice for couples who want a cozy sleep space.
Queen Size:
- For couples who adore cuddling but still want room to roll without disturbing each other, the Queen size offers that sweet balance.
King Size:
- Fit for royalty! A King-size mattress lets a couple sleep like kings and queens and still have space for little ones or furry friends who sneak in for a slumber party. The extra space can make a world of difference, and the King size offers plenty of room.
Extra space can be a game-changer for undisturbed sleep when you or your companions tend to toss and turn. So, before making your choice, consider your sleep position, nighttime movements (do you salsa or waltz?), and whether you share your bed with little ones or furry pals. After all, a great mattress isn't just about size; it's about creating a sleep haven that fits your unique sleep style like a glove.
Factor Three
Health-Related Factors
1. Sleep Apnea and Acid Reflux:
- Individuals with conditions like obstructive sleep apnea or acid reflux may benefit from a larger mattress size. Elevating the upper body can alleviate symptoms, and a larger mattress accommodates wedge pillows or multiple pillows comfortably.
2. Mobility and Safety:
- People with limited mobility or those who require mobility assistance may find smaller mattress sizes like Single or King Single more suitable. These sizes provide ease of maneuverability and enhance safety, especially for those who may need to access the bed's edge.
3. REM Behavior Disorder:
- Individuals with REM behavior disorder, which is more prevalent in older adults, may require more bed space due to increased nighttime movement associated with this condition. A larger mattress can accommodate these movements without the risk of falling.
4. Medical Devices:
- Those who use medical devices like CPAP machines may find a larger mattress, such as queen or king size, preferable. These sizes offer ample space to incorporate these devices seamlessly into the sleep environment.
5. Body Type and Special Needs:
- Different individuals have varying sleep requirements. Pregnant individuals, for example, often benefit from a larger mattress size like a queen or king to accommodate their changing body and provide extra space for comfort. Similarly, those with specific health conditions or special needs may require a mattress size tailored to their unique circumstances for optimal sleep quality.
Other Factors
Budget & Long-Term Need
Besides the aforementioned factors, your budget might not directly related, it can indirectly influence your choice of mattress size. Larger mattresses often come with a higher price tag, so it's essential to strike a balance between your preferences and financial constraints. Additionally, think about your long-term needs. Planning for a growing family or considering any future changes in living situations is crucial to ensure your mattress accommodates these developments effectively.
Try the size at home
120 night trial
Every mattress we sell comes with a 120 night trial, so you can test the size in your own bedroom rather than a showroom. If it turns out too big for the room or too small for two of you, the trial covers it. The full terms are on the 120 night trial page.
How does the 120 Night Trial work?
Mattress Buying Guide
When it comes to buying a mattress in Australia, bed mattress sizes are just one of several factors to contemplate before making the right choice. Factors such as mattress firmness, sleeping position, mattress types and materials, among others, play crucial roles. Our comprehensive mattress buying guide offers a complete guideline to help you navigate these key aspects and select the perfect mattress for your needs
Compare before you decide
See how the Boutique lines up against Koala, Emma, Eva and Sleeping Duck on price, trial, warranty and returns, read what changes when a mattress comes in a box instead of on a truck, or check the Australian sizes guide and the buying guide first.
Questions about mattress sizes
What are the standard mattress sizes in Australia?
Single (92 x 188 cm), Long Single (92 x 203 cm), King Single (107 x 203 cm), Double (138 x 188 cm), Queen (153 x 203 cm), King (183 x 203 cm) and Super King (203 x 203 cm). Queen is the most common size sold in Australia and the one most couples choose.
Is a king single the same as a long single?
No. They share the 203 cm length, but a king single is 107 cm wide and a long single is 92 cm wide, the same width as a standard single. A long single suits a tall person in a narrow room, a king single suits someone who wants more width as well.
Will a queen mattress fit in a 3 by 3 metre room?
Yes. A queen is 153 x 203 cm, which leaves about 75 cm on each side and 95 cm at the foot in a 3 by 3 room before any furniture. A king (183 cm wide) fits too but leaves under 60 cm each side, which is tight once a bedside table goes in.
Are Australian mattress sizes different from American and UK sizes?
Yes, and sheets and bed frames do not always cross over. An Australian queen is 153 x 203 cm, a US queen is 152 x 203 cm and a UK king is 150 x 200 cm. Buy sheets marked for Australian sizes and check the frame's internal measurement against the mattress, not the frame's outer size.
Do all your mattresses come in every size?
The Boutique range and most of the Crafterpedic range come in Single through to King, and several models add Long Single and Super King. The size table above shows the lowest price for each size across the range, and each product page lists the sizes it comes in.