Mattress measurements cm refers to the dimensions of a mattress expressed in centimetres, usually given as width × length. Knowing mattress measurements in cm is essential when choosing a new mattress, bed frame, base, fitted sheets, mattress protector or bedroom furniture.
Australian mattress sizes follow dimensions that can differ from the UK, US and other international markets, so checking the exact centimetre measurements is important before purchasing. Standard Australian sizes include Single, Single XL, King Single, Double, Queen, King and Super King.
| Mattress Size | Approx. Width | Approx. Length |
|---|---|---|
| Single | 91.5 cm | 190 cm |
| Single XL | 91.5 cm | 203 cm |
| King Single | 105.5 cm | 203 cm |
| Double | 138.5 cm | 190 cm |
| Queen | 152.5 cm | 203 cm |
| King | 183.5 cm | 203 cm |
| Super King | 203 cm | 203 cm |
Some Australian mattress retailers use slightly different measurements, such as 92 × 188 cm for Single or 107 × 203 cm for King Single. Small variations can occur between manufacturers, so always check the specific mattress specifications.
A standard Australian Single mattress is approximately 91.5 × 190 cm.
It is suitable for:
The compact width makes Single mattresses useful when floor space is limited.
A Single XL mattress is approximately 91.5 × 203 cm.
It has the same approximate width as a Single but provides an additional 13 cm of length, making it useful for taller single sleepers.
A King Single mattress is approximately 105.5 × 203 cm.
It offers more width than a Single while retaining the longer 203 cm length.
King Single mattresses are popular for:
A standard Australian Double mattress is approximately 138.5 × 190 cm.
It can suit:
Because it is shorter than Queen and King sizes, taller sleepers may prefer a longer mattress.
A Queen mattress is approximately 152.5 × 203 cm.
Queen is one of Australia's most popular mattress sizes and can provide a practical balance between sleeping space and bedroom requirements.
A King mattress is approximately 183.5 × 203 cm.
It provides around 31 cm more width than a Queen while maintaining the same 203 cm length. This makes it particularly attractive for couples who want additional personal sleeping space.
A Super King mattress is approximately 203 × 203 cm.
It provides an exceptionally generous sleeping surface and is particularly suited to large master bedrooms and households wanting maximum sleeping space.
Correct mattress measurements cm help ensure that everything works together properly.
Before buying, check:
A mattress can have the correct width and length but still be unsuitable for a particular frame because of differences in thickness, support requirements or construction.
It is important to understand that mattress measurements are not necessarily the same as bed-frame measurements.
For example, a King mattress may be approximately 183.5 × 203 cm, while the overall bed frame can be wider and longer because of:
Always check the internal mattress dimensions of a bed frame rather than assuming its external measurements match the mattress.
To measure your existing mattress:
Measure from one long side of the mattress directly across to the opposite side.
Measure from the head of the mattress to the foot.
Measure vertically from the bottom of the mattress to the highest point of the sleeping surface.
Write them as:
Width × Length × Depth
For example:
183.5 × 203 × 30 cm
This is more useful than simply describing the mattress as “King”.
Yes.
When discussing mattress measurements cm, width and length are normally the primary dimensions, but mattress depth is also important.
Mattress thickness can vary significantly according to:
A thick mattress can also change the overall height of a bed.
Consider:
Bed base height + mattress depth + mattress topper
when planning bedside furniture and bedroom proportions.
Your fitted sheet and mattress protector should correspond to the mattress's width and length and accommodate its depth.
For example, an Australian King mattress is approximately 183.5 × 203 cm, but the fitted sheet also needs to accommodate the mattress's thickness.
Always check:
Avoid relying solely on labels such as “King” when purchasing bedding internationally.
When buying a new bed frame, check whether it is designed for:
A frame designed for a Queen mattress, for example, should not be assumed to accommodate a King simply because both are approximately 203 cm long.
The width is substantially different.
The main difference between Queen and King is width.
Queen: approximately 152.5 × 203 cm
King: approximately 183.5 × 203 cm
The King therefore provides approximately 31 cm of additional width while maintaining the same length.
This extra width can be particularly useful for couples.
King: approximately 183.5 × 203 cm
Super King: approximately 203 × 203 cm
The Super King provides approximately 19.5 cm more width than the King. Both are approximately 203 cm long.
When planning a small bedroom, measure the mattress footprint before purchasing the bed.
Remember that you also need space for:
A Single or King Single may be more practical for a compact room, while a Queen or King can require considerably more floor space.
A larger bedroom gives you greater flexibility.
A King or Super King can create a strong focal point while leaving enough room for:
The important consideration is proportion. A large mattress should look balanced rather than lost within an oversized room.
Different Australian manufacturers sometimes list slightly different dimensions.
For example, one Australian guide lists King Single as 107 × 203 cm, while Sealy lists its King Single as 105.5 × 203 cm.
This does not necessarily mean one measurement is incorrect. Manufacturing tolerances and individual product specifications can differ.
For this reason, the safest approach is to check the exact product dimensions before buying a mattress, frame or bedding.
Australian mattress dimensions are not identical to every international standard.
A King mattress purchased overseas may therefore not fit an Australian King bed frame correctly.
This is particularly important when buying:
Always compare actual centimetre measurements rather than relying only on terms such as Single, Queen or King.
The mattress footprint is only the starting point.
For example, a King mattress measures approximately 183.5 × 203 cm, but the completed bed will require additional space for the frame and circulation.
Current Australian bedroom guidance commonly recommends larger rooms for larger mattresses, with one guide suggesting approximately:
These are planning guidelines rather than strict requirements.
Getting the measurements right also helps with bedroom styling.
Once the mattress size is established, choose furniture proportionately.
For a King mattress, consider:
For a Single or King Single bedroom, smaller furniture and compact lighting can help maintain a sense of spaciousness.
The frame may be considerably larger than the mattress.
A fitted sheet needs to accommodate the full mattress thickness.
Manufacturers can use slightly different dimensions and tolerances.
International sizing terminology can be misleading.
The mattress may technically fit while leaving insufficient space for comfortable movement.
A mattress should be paired with a compatible base or frame.
Australian mattress sizes include approximately 91.5 × 190 cm for Single, 105.5 × 203 cm for King Single, 138.5 × 190 cm for Double, 152.5 × 203 cm for Queen, 183.5 × 203 cm for King and 203 × 203 cm for Super King.
A standard Australian Queen mattress is approximately 152.5 × 203 cm.
A standard Australian King mattress is approximately 183.5 × 203 cm.
A King Single mattress is approximately 105.5 × 203 cm, although some Australian retailers list approximately 107 × 203 cm.
A standard Australian Double mattress is approximately 138.5 × 190 cm.
A Super King mattress is approximately 203 × 203 cm.
No. Mattress dimensions vary between countries, so it is important to compare actual centimetre measurements before buying an imported mattress, frame or bedding.
Measure the width from side to side, the length from head to foot and the depth vertically from the base to the highest point. Record the dimensions as width × length × depth.
At House of Isabella Australia, understanding mattress measurements cm can help create a bedroom where furniture, bedding and décor work together beautifully.
Once you know the exact mattress dimensions, you can choose a suitable bed frame, storage base, bedside tables, rugs and bedroom accessories with much greater confidence.
House of Isabella Australia offers fast delivery Australia-wide, East & West Coast warehouses, a large in-stock catalogue, exclusive unique designs, Australian-based customer care and Buy Now, Pay Later with Afterpay & Zip.
Collections from Florabelle Collection, Zaffero, Emac & Lawton, Gallery Home, Café Lighting & Living and OneWorld Collection can provide inspiration when styling bedrooms around different mattress sizes.
The key is to keep furniture, lighting and decorative accessories proportionate to the bed and available floor space.
Understanding mattress measurements cm is one of the simplest ways to avoid costly sizing mistakes.
For Australian homes, remember the key dimensions:
Single: 91.5 × 190 cm
Single XL: 91.5 × 203 cm
King Single: 105.5 × 203 cm
Double: 138.5 × 190 cm
Queen: 152.5 × 203 cm
King: 183.5 × 203 cm
Super King: 203 × 203 cm
Because manufacturers can vary slightly, always check the exact measurements of the mattress you are buying before selecting the bed frame, base or bedding.
The information provided is for general educational and bedroom-planning purposes only. Mattress dimensions can vary slightly between manufacturers, models and manufacturing tolerances. Always check the exact product measurements before purchasing a mattress, bed frame, base, mattress protector, fitted sheet or other bedding. Room-size recommendations are general planning guidelines and should be adapted to the specific layout of your bedroom.
Mentions of brands such as Florabelle, Gallery Home, Café Lighting & Living, Zaffero, Emac & Lawton and others are included purely for descriptive and contextual purposes. House of Isabella Australia is not affiliated with, endorsed by, or associated with these brands unless expressly stated.
Disclaimer: All trademarks, brand names and product names mentioned on this website are the property of their respective owners. Any references are made for identification, informational or comparative purposes only, and do not imply any affiliation, endorsement, sponsorship or authorisation.
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