The choice between a king and super king mattress is ultimately one of space, comfort level, and lifestyle. Each one provides a great sleep surface for couples. However, if you are looking for extra space, knowing the differences in size and support is key. In this article, we provide a head-to-head comparison of these two premium mattress sizes, which can be easily found in most places across Australia.
The king-size mattress is one of the popular choices in Australian homes. The king-size bed is an ideal choice for the couples who want more sleeping space than a queen mattress without requiring an oversized bedroom
The size provides enough space for two adults and enough room to move around without disturbing your partner.
King mattress dimensions in mm are 1,830 x 2,030 mm.
King size bed dimensions in mm may be different on the basis of the mattress brand.
King mattress dimensions in cm are 183 cm x 203 cm.
*King size bed dimensions in cm may be different on the basis of the mattress brand.
King mattress dimensions in inches are 72.0 in × 79.9 in.
*King size bed dimensions in inches may be different on the basis of the mattress brand.
Pros:
Great choice for couples who need more space than a queen mattress provides
It is widely available in bed frames, accessories, and bedding.
It fits comfortably in most master bedrooms.
The king-size bed is easier to move than a super king bed.
Cons:
It may still feel a bit tight if co-sleeping with a child or pet.
It may require more space than a queen-size mattress and may not be suitable for small rooms.
The super king-size mattress is the widest standard-width mattress in Australia, so you’ve got extra room all around. Great for large bedrooms and the ultimate luxury sleeping experience, especially if you share your bed or are a light sleeper.
Best for: Couples who like their own space, families, or just anyone in the market for maximum comfort.
Fit: Best for rooms 4.2 m x 4.2 m or larger.
Super King Bed Dimensions: 203 cm wide x 203 cm long
A Super King offers more room between partners and the edges, since it’s 20 cm wider than a standard King-size bed.
Super king mattress dimensions in mm are 2,030mm x 2,030 mm.
*Super king size bed dimensions in mm may be different on the basis of the mattress brand
Super king mattress dimensions in cm are 203 cm x 203 cm.
*Super king size bed dimensions in cm may be different on the basis of the mattress brand.
Super king mattress dimensions in inches are 79.9 in × 79.9 in.
*Super king size bed dimensions in inches may be different on the basis of the mattress brand.
Pros:
Maximum personal space for undisturbed sleep
Perfect for families co-sleeping
Enhances luxury and aesthetics in large bedrooms
Reduces movement disturbance
Cons:
Requires a larger bedroom to fit properly
Higher cost for mattress, bed frames, and linen
Less variety in accessories and bed bases
Heavier and more difficult to move
|
Feature |
King Bed |
Super King Bed |
|---|---|---|
|
Dimensions (AU) |
183 cm (W) × 203 cm (L) |
203 cm (W) × 203 cm (L) |
|
Ideal For |
Couples, medium to large bedrooms |
Couples, families, large bedrooms |
|
Space per sleeper |
Moderate space |
Extra space for each person |
|
Room size needed |
Minimum ~3.6m × 3.6m |
Minimum ~4.2m × 4.2m |
|
Common in Australia? |
Yes — widely available |
Less common — limited availability |
|
Bedding cost |
More affordable and widely available |
Higher cost, harder to find accessories |
|
Comfort level |
High comfort for most |
Premium comfort and more personal space |
|
Best for |
Everyday comfort and affordability |
Luxury feel, co-sleeping with child or pet |
|
Ease of moving/installing |
Easier due to smaller size and weight |
Bulkier and more difficult to maneuver |
Shop our comprehensive collection of king and super king mattresses at BedWorld. We believe in quality and comfortable affordable bedding and furniture. Whether you’re looking to upgrade your sleep setup or furnish a new home, we’ve found the bed that’s right for you.
Read Also - Complete Guide to Double Bed Dimensions in Australia
