Australian guides agree on the main names but publish small dimensional differences. BedMetric shows the disagreement instead of inventing one exact national standard.
These are nominal reference dimensions, not a promise that every finished mattress, bed base, fitted sheet or frame opening will match.
Native units are retained. BedMetric derives the second unit system from the same millimetre value so the two displays cannot drift apart.
| Market + name | Native figure | Centimetres | Inches | Evidence type |
|---|---|---|---|---|
| AU Single | 915–920 mm × 1880–1900 mm | 91.5 cm × 190 cm | 36.02 in × 74.8 in | rangebounded confidence |
| AU Long SingleAlso: Single XL | 915–920 mm × 2030 mm | 91.5 cm × 203 cm | 36.02 in × 79.92 in | rangebounded confidence |
| AU King Single | 1055–1070 mm × 2030 mm | 105.5 cm × 203 cm | 41.54 in × 79.92 in | rangebounded confidence |
| AU Double | 1380–1385 mm × 1880–1900 mm | 138.5 cm × 190 cm | 54.53 in × 74.8 in | rangebounded confidence |
| AU Queen | 1525–1530 mm × 2030 mm | 152.5 cm × 203 cm | 60.04 in × 79.92 in | rangebounded confidence |
| AU King | 1830–1835 mm × 2030 mm | 183.5 cm × 203 cm | 72.24 in × 79.92 in | rangebounded confidence |
| AU Super King | 2030 × 2030 mm | 203 cm × 203 cm | 79.92 in × 79.92 in | manufacturer examplebounded confidence |
Long Single/Single XL and King Single are important Australian labels; manufacturer examples remain identified.
Australian sources publish small disagreements, shown as ranges in the table. The proportional drawing uses the clearly identified Sealy example.
Sealy states ±15 mm for its handmade mattresses.
Measure the finished product and the frame’s internal opening. Do not infer compatibility from a market name or a rounded conversion.
How to measure correctly →Differences: 0.0 cm width, 13.0 cm length and 6.4% area relative to AU Long Single.
Differences: 31.0 cm width, 0.0 cm length and 16.9% area relative to AU King.
Differences: 19.5 cm width, 0.0 cm length and 9.6% area relative to AU Super King.
A matching name in another country is not proof of the same dimensions. Use mattress sizes by country or compare two qualified records before buying.
Correction route: If a current source or product specification conflicts with this page, send the page URL and evidence through the corrections process.