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Consistently high quality and scientifically designed products provide a full night's cozy and restful sleep.
King Size Mattress
The standard king mattress size in Australia is 183 cm wide × 203 cm long.
Finding the right mattress is crucial for achieving a good night's sleep. Ideal for couples or individuals who prefer optimal and undisturbed sleep.
King Size Mattress
The standard king mattress size in Australia is 183 cm wide × 203 cm long. Finding the right mattress is crucial for achieving a good night's sleep.
Ideal for couples or individuals who prefer optimal and undisturbed sleep.
You might find king size bed mattress
in luxury hotels because they provide generous sleep areas.
Furthermore, it makes sure that you, your partner, kids, dog and maybe cat have adequate space and enjoy lying on the bed.
You might find a king-size bed mattress
in luxury hotels because they provide generous sleep areas.
Furthermore, it makes sure that you, your partner, kids, dog and maybe cat have adequate space and enjoy lying on the bed.
Explore Our King-Size Bed Mattresses in Action
We offer three ergonomically designed king mattress models, each providing targeted support for your body, recommended by an orthopedic doctor in Australia.
Made from high-quality, skin-safe materials, all are CertiPUR-US® and STANDARD 100 by OEKO-TEX® certified.
Trusted by 500,000+ Australians for better sleep and comfort.
Hybrid Mattress
From
$495.00
Experience our classic best-seller, a hybrid mattress with balanced comfort and support for total spinal support.
Shop Hybrid Mattress
Hybrid Mattress Pro
From
$537.60
Next-generation spring technology engineered for maximum pressure relief, restorative sleep, and physical rejuvenation.
Shop Hybrid Mattress Pro
Hesperis Mattress
From
$528.00
Advanced contouring memory foam with customizable firmness and a hygienic, washable cover for a perfectly tailored sleep.
Shop Hesperis MattressAustralia's Most Award-Winning King Bed Mattress Brand
Compare Newentor King Mattress-in-a-Box Australia for Your Needs
Hybrid Mattress
Pocket Springs + Memory Foam
Medium Firm
7 Zones, Precise Support
Antibacterial and breathable charcoal fibre cover.
$693.00(King size)
25cm height
Hybrid Mattress Pro
Pocket Springs
Memory Foam
Micro Coil Pocket Springs
Memory Foam
Micro Coil Pocket Springs
Medium
7 Zones, Precise Support
Antibacterial and breathable charcoal fibre cover.
$980.00(King size)
28cm height
Hesperis Mattress
Memory Foam
Adjustable Firmness Relatively Firm
7 Zones, 7 Layers
antibacterial and anti-mite coconut fibre cover.
$536.00(King size)
22cm height
Why Choose a King-Size Mattress?
Choosing a king-size mattress is a strategic investment for those seeking to elevate their sleep quality through expanded personal space. In the Australian market, a standard King measures 183cm x 203cm—offering a substantial 30cm increase in width over the common Queen size.
Couples Seeking "Undisturbed" Sleep
If you or your partner are restless sleepers (toss and turn) or have different schedules (one is an early bird, the other a night owl), a King is essential.
Families with Kids or Pets
The extra 30cm of width over a Queen provides just enough "real estate" to accommodate a child or a pet in the center or at the foot of the bed without forcing the adults to sleep on the very edge of the mattress.
The Popular Choice for Larger Bedrooms & Luxury Hotels
The King size strikes the ideal balance between a Queen and a Super King, making it the preferred choice for spacious master bedrooms and premium settings like luxury hotels and guest suites.
Not Sure Which Mattress Size is Right for You?
See the Mattress Sizes Guide >>
Australian Mattress Sizes Comparison Guide
This bed and mattress size guide is designed to help you choose the ideal mattress for your bedroom.
Discover how king size can suit your space, comfort, and lifestyle needs.
Discover how king size can suit your space, comfort, and lifestyle needs.
|
Mattress Size |
Width x Length
(cm)
|
Width x Length
(mm)
|
Width x Length
(inches)
|
|---|---|---|---|
|
92 x 188 |
920 x 1880 |
36.2 x 74 |
|
|
92 x 203 |
920 x 2030 |
36.2 x 79.9 |
|
|
107 x 203 |
1070 x 2030 |
42.1 x 79.9 |
|
|
137 x 188 |
1370 x 1880 |
53.9 x 74 |
|
|
153 x 203 |
1530 x 2030 |
60.2 x 79.9 |
|
|
183 x 203 |
1830 x 2030 |
72 x 79.9 |
|
|
203 x 203 |
2030 x 2030 |
79.9 x 79.9 |
Fast & Free Delivery
120 Night Free Trial
Long Term Warranty
Shop now. Pay later.
What Makes Newentor King Mattresses Stand Out?
Gel-Visco Memory Foam
The certified memory gel foam provides a refreshing temperature.
Breathable and Cool
Certified and natural materials optimize airflow throughout all the layers of the bed.
Solid Edge Support
Firmer surroundings on the bed to provide reinforced edge support.
No Partner Disturbance
All mattresses have excellent shock absorption and resilience.
First brand new mattress and I’m in heaven!
Delivery was so fast and it was easy for one person to set up. I’ve never slept so soundly and look forward to going to bed each night!
Surprise and Relief
The mattress was a surprise as it popped out of the plastic and became a full mattress in a matter of seconds. I did sleep on it the first night and it was really comfortable.
Really happy with this Hybrid Mattress
I did not think my old mattress was uncomfortable till i purchased this Hybrid Mattress. Great value, great sleep. No more sore lower back pain in the morning! Fast delivery. Definitely recommend.
Very comfortable memory foam mattress
Mattress came rolled up in an airtight package, so it didn't take up too much shipping space, although the box was quite large. But it was very easy to open, self inflated, and was ready to go.
Excellent Support and Sooo Comfortable!
The top layer of this mattress is cozy and soft, and it cushions my hips and shoulders, while the firm layer below supports my spine. I usually tend to toss and turn at night, but noticed that I didn't change position as often with this mattress.
Happy Moments with Newentor Mattresses
120 Night Trial Period
We know that you have concerns, after all this is one big and expensive mattress. We are happy to let you experience and be sure of your choices.
We are giving you a free trial of 120 nights to make up your mind.
If you are not happy, we make sure you have a free return and refund.
1
Buy online
2
Free shipping anywhere
3
Try it for 120 nights
4
Love it or return it
FAQ about King Mattress
Will a king-size mattress fit in my bedroom?
To accommodate a King bed comfortably (leaving room for bedside tables and walking space), your room should ideally be at least 3.6m x 3.6m.
The "Golden Rule": Try to maintain at least 75cm to 90cm of clearance on the three sides of the bed to avoid the room feeling cramped.
What is the size of king-size mattress in Australia?
In Australia, a standard King-size mattress measures 183cm x 203cm.
How do I get a king mattress into a small doorway or upstairs?
If you have narrow hallways or tight stairs, consider a "Newentor Mattress in a Box." These are compressed and rolled, making them much easier to maneuver into the room before they expand.
Which King mattress is most suitable for back pain sufferers?
For back pain sufferers, a medium-firm hybrid mattress is often the most suitable choice, as it balances pressure relief with essential spinal support.
The Newentor Hybrid Mattress Pro is an excellent recommendation. It features an advanced 7-zone pocket spring system that provides tailored support for different body regions, ensuring proper spinal alignment. Additionally, it incorporates 3cm micro-coils to prevent sagging and enhance longevity. This combination of responsive springs and gel-visco memory foam cradles the lower back while relieving pressure points, making it a top-tier choice for chronic pain relief and restorative sleep.
How heavy is a king mattress?
Newentor mattresses are designed for easy handling. Key model weights are: Hybrid King Size (44.41 kg), Hesperis Memory Foam (30.95 kg), and Hybrid Pro King Size (57.6 kg).
King-size mattress dimensions vs queen
In Australia, both sizes share a length of 203cm, but the King (183cm wide) provides a substantial 30cm width advantage over the Queen (153cm wide).
Choose a Queen if you have a standard bedroom (approx. 3m x 3m) or a tighter budget. Upgrade to a King if you have a larger master suite, sleep with a restless partner, or co-sleep with kids and pets. While the King offers 20% more surface area for "undisturbed" sleep, ensure your room can accommodate its larger footprint.
