In Australia, the main difference between a king size mattress and a queen size mattress is width. A standard queen mattress is approximately 153 × 203 cm, while a king mattress is approximately 183 × 203 cm. Both are generally the same length, but the king provides 30 cm more width and approximately 0.60 m² more sleeping surface.
| Feature | Queen Mattress | King Mattress |
|---|---|---|
| Width | 153 cm | 183 cm |
| Length | 203 cm | 203 cm |
| Sleeping area | 3.11 m² | 3.71 m² |
| Difference in width | — | 30 cm wider |
| Difference in length | — | Same |
| Approx. space per person | 76.5 cm | 91.5 cm |
| Ideal bedroom | Small–medium | Medium–large |
| Best for | Space efficiency | Maximum sleeping space |
A queen mattress is a smart choice if you want a generous bed without allowing the mattress to dominate the bedroom. It leaves more room for bedside tables, wardrobes, benches and other furniture.
A king mattress is ideal when sleeping comfort and personal space are the priority. The additional 30 cm of width can make a noticeable difference for couples, particularly if one or both sleepers move around during the night.
Choose a queen mattress if:
Choose a king mattress if:
Remember that these measurements refer to the mattress itself. Your finished bed will usually be larger once you add the bed frame, headboard and surrounding furniture.
Always check the manufacturer's exact dimensions before purchasing a mattress, bed frame, fitted sheets or quilt covers, as sizes can vary between products.
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