Last reviewed: 1 August 2026 by the Ozbuyz Store Editorial Team.
Quick answer: Current CHOICE guidance lists common Australian mattress dimensions as single 92 × 187 cm, long single 92 × 203 cm, king single 106 × 203 cm, double 137 × 187 cm, queen 153 × 203 cm and king 183 × 203 cm. Always check the exact product dimensions because brands and non-standard sizes can differ.
Common Australian mattress dimensions
| Size | Width × length | Common use |
|---|---|---|
| Single | 92 × 187 cm | Children, bunk beds and compact guest rooms |
| Long single | 92 × 203 cm | Single sleeper needing extra length |
| King single | 106 × 203 cm | Teens and adults wanting more width and length |
| Double | 137 × 187 cm | Solo sleeper, guest room or compact shared use |
| Queen | 153 × 203 cm | Common shared adult size |
| King | 183 × 203 cm | Shared use with additional width |
Super king, split king, custom, caravan and imported sizes also exist, but dimensions are less consistent. Use the product page, packaging and manufacturer specification rather than assuming the name matches another brand or country.
Mattress size is not bed-frame size
The frame’s outside dimensions can be much larger because of side rails, upholstery, headboards, footboards or storage drawers. Measure:
- internal mattress platform
- overall frame width and length
- headboard height and wall clearance
- drawer or gas-lift opening area
- bedside-table and wardrobe-door clearance
Match the mattress to the frame’s stated mattress size and support requirements. An international “queen” frame may not match an Australian queen.
Plan the room without a universal walkway rule
There is no single compulsory walkway distance for every bedroom. Test whether the layout allows safe movement, bed making, access to both sleepers where required, wardrobe and door operation, emergency egress and any mobility equipment.
A practical method is to mark the full frame footprint on the floor with removable tape or newspaper, then open every door and drawer. Include the frame rather than only the mattress rectangle.
Check sleeper length
CHOICE notes that mattress length should generally be at least 10–15 cm longer than the tallest sleeper. Treat that as a comfort guide and verify whether pillows, footboards or sleeping position reduce usable length.
Delivery access
Measure the packaged mattress or assembled-frame components through:
- front and internal doors
- hallway turns
- stairs and landings
- lift doors and cabin
- balconies or restricted apartment access
A boxed mattress can simplify access, but its package may still be heavy and difficult to turn. Check handling requirements and arrange enough people or professional delivery.
Linen and protectors
Mattress depth affects fitted-sheet and protector fit. Compare pocket depth with the mattress, topper and protector combined. Quilt sizes also vary and do not equal mattress dimensions.
Browse single, king single, double, queen, king or all mattresses.
Frequently asked questions
What size is an Australian queen mattress?
The common size listed by CHOICE is 153 × 203 cm. Check the individual mattress specification before ordering.
What is the difference between double and queen?
Using the common dimensions above, a queen is 16 cm wider and 16 cm longer than a double.
Is an Australian queen the same as an overseas queen?
Not necessarily. Compare centimetre dimensions rather than the size name.
What size room is needed for a king bed?
There is no universal room minimum. Measure the complete frame, circulation, doors, wardrobes and access requirements.
Is super king a standard size?
It is widely sold, but dimensions can vary between suppliers. Verify the exact mattress, frame and linen measurements.
Research and review method
Dimensions and the sleeper-length guide were checked against CHOICE’s mattress buying guide updated 27 July 2026. Exact product dimensions remain the source of truth.