Your guide to mattress sizing guide for australian homes - building guidance for Adelaide and South Australia.
Content scope
This guide has been reviewed for South Australia (Adelaide metro + regional SA). Building licensing, warranty, stamp duty and approval rules differ in other Australian states — verify against your local authority before acting.
Mattress sizes in Australia are standardised, but the names and dimensions differ from the US and UK, so a King here is not a King everywhere. Getting the size right is the difference between a bedroom that feels generous and one where you shuffle sideways past the end of the bed. This guide lists every Australian mattress size with exact dimensions, the room size each one realistically needs, and how to choose between them when you are setting up a new home. All measurements are the Australian Standard sizes used by local makers.
At a glance
Single (92cm x 188cm)
Kids rooms and tight spaces
King Single (107cm x 203cm)
Teens, guest rooms and tall solo sleepers
Double (138cm x 188cm)
Smaller rooms and occasional-couple use
Read time
Including FAQ and supplier shortlist.
Key takeaways
Plain practical advice for Australian builds. No fluff.
Australian mattress dimensions do not match US or UK sizes of the same name. An Australian Queen is 1.53m by 2.03m. Always check the centimetre dimensions, not just the name, especially when buying bedding or a base from an overseas brand.
Leave at least 60cm of walking space on each side you need to access, and about 90cm at the foot if there is a doorway or robe. As a rough rule, a Queen suits rooms from 3.0m by 3.4m, a King needs about 3.3m of clear wall, and a Super King wants a dedicated main suite.
For two adults, a Queen is the common default, but a King gives each person the same personal width as a King Single. If kids or pets pile in, or if one of you is tall, size up. For a tall sleeper, a Long Single or King (2.03m long) beats a standard Single at 1.88m.
A built base or ensemble must physically fit through doorways and around stair turns. A mattress-in-a-box sidesteps this because it ships compressed, which is a real advantage in new estates with tight hallways or upstairs main bedrooms.
Queen and King bedding is the easiest to find and cheapest. Super King and King Single ranges are smaller and dearer. Factor the ongoing cost of sheets, quilts and protectors into the size decision, not just the mattress.
“Queen (153 x 203cm) is the default for most Australian main bedrooms”
George Giannakakis
Founder
Quick compare
| Single (92cm x 188cm) | King Single (107cm x 203cm) | Double (138cm x 188cm) | |
|---|---|---|---|
| Typical cost | $250 to $700 | $350 to $900 | $450 to $1,100 |
| Best for | Kids rooms and tight spaces | Teens, guest rooms and tall solo sleepers | Smaller rooms and occasional-couple use |
The smallest standard size, for young children and compact rooms.
Typical cost: $250 to $700
Pros
Cons
Best for: Kids rooms and tight spaces
View the Ergoflex Single· from $950AdWider and longer than a Single, popular for older kids, teens and tall single sleepers.
Typical cost: $350 to $900
Pros
Cons
Best for: Teens, guest rooms and tall solo sleepers
View the Ergoflex King Single· from $1,000AdA compact couple size for smaller rooms where a Queen will not fit.
Typical cost: $450 to $1,100
Pros
Cons
Best for: Smaller rooms and occasional-couple use
View the Ergoflex Double· from $1,300AdThe most popular Australian couple size and the easiest to buy bedding for.
Typical cost: $650 to $1,800
Pros
Cons
Best for: Most couples and main bedrooms
View the Ergoflex Queen· from $1,700AdA generous couple size giving each person a King Single of space.
Typical cost: $900 to $2,500
Pros
Cons
Best for: Larger main bedrooms and light sleepers who want space
View the Ergoflex King· from $1,900AdAcross Australian makers, expect roughly $650 to $1,800 for a quality Queen and $900 to $2,500 for a King, with memory foam and pocket spring in a similar range. Buying direct from the maker, especially a mattress-in-a-box brand, usually lands at the lower end with a home trial attached, while showroom brands sit higher once sales markdowns are stripped out. Remember to budget for the base (an ensemble from $200, a frame from $250 to $900), a mattress protector ($60 to $150), two pillows ($120 to $300) and a bedding set ($150 to $400). Sizing up from Queen to King typically adds $250 to $700 to the mattress and a similar step-up across bedding.
All our bedroom & sleep guides in one place.
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Turn a spare room into a comfortable guest room on a budget, from mattress to bedside basics.
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If you're tackling parts of this yourself, here's the practical gear owners reach for. You buy direct from the supplier at their price.
From Ergoflex
Mattresses
Ergoflex Mattress - Double Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - Double Mattress Protector
Mattresses
Ergoflex Mattress - King Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - King Mattress Protector
Mattresses
Ergoflex Mattress - King Single Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - King Single Mattress Protector
Mattresses
Ergoflex Mattress - Long Single Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - Long Single Mattress Protector
Pillows
The Ergoflex Pillow - Memory Foam Pillow
Mattresses
Ergoflex Mattress - Queen Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - Queen Mattress Protector
Mattresses
Ergoflex Mattress - Single Memory Foam Mattress
Mattress Protectors
Ergoflex Protector - Single Mattress Protector
From ECOVACS
DEEBOT Robot vacuums and mops
DEEBOT N20 Black Robot Vacuum & Mop with Mapping (Anti-Tangle, Voice Control, App)
DEEBOT Robot vacuums and mops
DEEBOT T30S PRO White Robot Vacuum & Mop with AI (Mapping, Anti-Tangle, Edge)
DEEBOT Robot vacuums and mops
DEEBOT N20 PLUS Black Robot Vacuum & Mop with Mapping (Anti-Tangle, Self-Empty, Pet)
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