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100night
100 Night Trial
ergonomic
Ergonomic Spine Alignment
15warranty
15-Year Limited Warranty
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Essence Mattress

Spring Mattress
essence mattress

Targeted support for budget- and eco-conscious sleepers.

Queen-Plush size
$740 $592
Shop Essence

Pure Mattress

Hybrid Mattress
pure

Precision contouring and support for the ultimate night's sleep.

Queen size
$1,700 $1,360
Shop Pure

Ecosa Mattress

Memory Foam
ecosa

Value and flexibility – ergonomic support to suit your needs.

Queen size
$1,150 $920
Shop Ecosa

CoolComfort Mattress

Hybrid Mattress
cool comfort

Advanced cooling and precision support for hot sleepers

Queen size
$1,900 $1,520
Shop CoolComfort

TrueFirm Mattress

Hybrid Mattress
true firm

Firmness you can trust with the flexibility to make it yours.


Queen size
$1,100 $880
Shop TrueFirm

AeroLux Mattress

Hybrid Mattress
aero lux

The height of luxury, balancing ultra-plush comfort with precision support.

Queen size
$3,500 $2,800
Shop AeroLux
MATTRESS TYPE
Spring Mattress: Bio-Based Memory Foam and Pocket Springs.
Hybrid: Precision Pocket Springs, Micro Coils, Latex and BounceTech™ Foam.
3 layers of Ergonomic Support Memory Foam
Hybrid: Precision Pocket Springs, FlexMatrix™ Grid, BounceTech™ Foam, Copper-Infused Air Foam and Graphene-Infused Foam.
Hybrid: Latex and Precision Pocket Springs
Hybrid: Precision Pocket Springs, Support Memory Foam, Gel Memory Foam and Soft Transition Foam.
ERGONOMIC SUPPORT
Essential support for core pressure points, and good spinal alignment.
Head-to-toe precision support, contouring and pressure relief.
Enhanced pressure relief: Lower back, knees, shoulders.
Precision support and specialised zoning promote optimal spinal alignment.
Targeted support: Lower back and knees.
5-zone targeted support for head, shoulders, lumbar, hips and legs.
EDGE SUPPORT
Edge support prevents falls
Edge support prevents falls
Edge support prevents falls
Edge support prevents falls
Edge support prevents falls
MATTRESS HEIGHT
22cm
29cm
25cm
28cm
25cm
40cm with pillow top.
FIRMNESS LEVEL
BREATHABILITY
Pocket springs and open-cell bio foam for enhanced airflow
Pinholed latex, micro coils and pocket springs for ultimate airflow.
Pincore holes + foam cut out for air to flow freely
FlexMatrix™ Grid, Ice Mesh sides and pocket springs deliver unparalleled airflow.
Natural, breathable latex and pocket springs for optimised airflow.

Natural duck down and plant-based Sorona® fibre fill, plus pocket springs for enhanced airflow.
ALLERGY PREVENTION & CLEANING
Reduces Allergy Risk
Washable Covers
Reduces Allergy Risk
Dust and Mite Free
Washable Covers
Reduces Allergy Risk
Waterproof
Cool+ Washable Covers
Reduces Allergy Risk
Reduces Allergy Risk
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SUSTAINABILITY
Zero waste steel spring
Eco-friendly Packaging
Made with Recycled Materials
Eco-friendly Packaging
Made with Recycled Materials
Eco-friendly Packaging
Made with Recycled Materials
Eco-friendly Packaging
Made with Recycled Materials
Eco-friendly Packaging
Made with Recycled Materials
Eco-friendly Packaging
Made with Recycled Materials
xmas

Join 100,000 happy customers

My new mattress is so unbelievably comfortable.

Best sleeps ever!

Sleep Like a Dream on the Pure Mattress by Ecosa!

Highly recommendable!

Frequently Asked Questions

Experience Ultimate Comfort and Luxury for Your Sleep

A king mattress is one of the most luxurious items you add to your home. The ultimate statement of elegance and space, a king provides a perfect solution for those seeking extra room to stretch out and indulge.

Whether you're upgrading your bedroom or creating a lush, relaxing sleep haven, a king mattress can ensure comfort and restful sleep every night. At Ecosa, we offer an extensive range of king mattresses in a box, designed for easy delivery and effortless setup.

An Adjustable King Size Mattress

Since a king bed gives you the most space, why not take it further by getting a mattress that is adjustable? At Ecosa, we have a range of mattresses that let you adjust your firmness as you need.

Our Ecosa Mattress, Pure Mattress and TrueFirm Mattress all allow you to tweak to the support that you deserve. So whether you want a cushiony yet supportive bed or a firm mattress for optimum alignment, you can have it all at Ecosa.

Best for Couples

If you sleep with a partner who moves a lot, then having enough space in bed can help you stay rested even though they toss and turn. Also, if your bedmate has a different sleeping schedule from yours, an Ecosa king mattress can ensure that their different sleep pattern does not disturb yours.

A Family-Friendly Bed

Sleeping with your little ones can be a joy when you have ample space. With a king bed mattress, you can fit two of your small kids with you and your partner. You can also get your fur babies to snuggle with you as you sleep since there will be plenty of space.

King Mattress Size & Measurement

Like all mattresses, the exact size of a king bed mattress can vary between brands and models, but only slightly. Usually around 203cm long x 167cm wide in New Zealand, our Ecosa king size mattress measurements are:

  • Ecosa: 203cm x 183cm x 25cm
  • Pure: 203cm x 183cm x 29cm
  • CoolComfort: 203cm x 183cm x 28cm
  • TrueFirm: 203cm x 183cm x 28cm
  • Essence: 203cm x 183cm x 22cm
  • AeroLux: 203cm x 183cm x 40cm
If you’re looking for an even bigger mattress for two people — yes, even bigger! — you can explore a super king mattress for the ultimate in spacious sleep.

For a closer look, and detailed comparisons, check out our mattress size guide and find the right fit for you.

How To Choose a King Mattress

While the space you have will be a huge factor to consider when you’re ready to buy a king mattress, there are some other key factors to think about. Remember, it comes down to you and your sleep preferences.

Do you sleep on your side mostly? Or your back? Do you want it firm or prefer a more medium or plush comfort level? Think about the type of comfort you want, and any specific support needs you may have.

Due to their size, king bed mattresses are an investment, so price is going to be important as well. And, of course, you need a mattress that will last, so materials and durability matter.

Be sure to browse our entire Ecosa mattress collection before making the decision that will shape your sleep — after all, you spend roughly one third of your life in bed, so what you sleep on matters.

King Mattress Types Available

At Ecosa, we offer several types of king size mattresses, including memory foam, hybrid, and pocket spring options. Each mattress type is designed to deliver lasting comfort and support, ensuring you wake up feeling refreshed every morning.

If you’re looking for a cooling mattress, we have options that help regulate your body temperature throughout the night. And if a soft, cloud-like embrace is what you’re after, we also offer a plush pillow top mattress* for true king size luxury.

*Currently for delivery within Victoria only

How Much Does a King Mattress Cost?

Like any mattress, the price of a king size varies across the market, depending on materials, design, brand and model.

At Ecosa, we offer a range of king bed mattresses, starting from under $1,000 and increasing based on different features and materials. So there’s a king mattress for everyone, ensuring you can sleep on the luxury and comfort you deserve, at a price that’s right for you. For more information, visit our mattresses page.

Looking for the best price? Sign up to become an Ecosa member for even more savings, as well as the latest offers and product updates delivered straight to your inbox.

Is a King Mattress Right for You?

A king mattress is perfect for couples looking for extra space to sleep comfortably together or for individuals who prefer the luxury of having extra room to stretch out.

If you tend to move around a lot in your sleep, a king size could be for you. It’s also a great option if you tend to have your little ones or fur babies joining you to sleep.

If you’re looking for something bigger than a queen mattress, then a king size mattress is the one.

For an even bigger sleep surface for two people, our super king mattress offers the ultimate in spacious sleep. If you’re a solo snoozer looking for something slightly smaller than a king, but more space than a double bed, give our queen mattress a try.

Differences Between a King vs Queen Mattress

The key difference between a king mattress and a queen mattress is size. At Ecosa, our king mattress measures 183cm in width and 203cm in length, providing 30cm more width than a queen mattress. If you want more space to spread out, the king is the perfect option.

Differences Between a King vs Super King Mattress

A super king mattress is even larger. While our king mattress measures 183cm in width, a super king mattress is 204cm wide, offering even more space for those who want the utmost luxury in their sleeping experience.

Differences Between a King vs King Single Mattress

While they both have ‘king’ in their name, a king single mattress and a king mattress sit far apart on the size scale.

A king single mattress is designed purely for solo sleepers, measuring only 107cm in width — just a little larger than a standard single. While a king bed mattress is much wider at 167cm, making it extra spacious, even with two people sleeping on it.