🇦🇺 Australia · Foam vs Memory foam

Koala Calm AsvsErgoflex

Which one is best for you? Koala Calm As or Ergoflex - 2026 comparison by Vs Mattress

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Koala Calm AsErgoflexSale: 30% Off
Koala Calm As logoKoala Calm As

Koala Calm As

by Koala · Foam

10 · 120-night trial

Ergoflex logoErgoflex

Ergoflex

by Ergoflex · Memory foam

Sale: 30% Off

10 · 30-night trial

Pricing by size

Koala Calm As

Single$1,000
King Single$1,200
Double$1,500
Queen$1,700
King$2,000

Ergoflex

Single$999
King Single$1,099
Double$1,399
Queen$1,599
King$1,849

Essential information

Koala Calm AsErgoflex
TypeFoamMemory foam
Launched2022 (brand 2015)2010
BrandKoalaErgoflex
Made inChinaChina
Unique points

3 zones of support and easily customisable firmness levels, you can be rest assured the Koala Calm As Mattress hits the spot every single night.

  • COOLMAX® Sleep Surface Technology
  • Flippable Kloudcell™ Comfort
  • ZoneOut Transition Layer
  • NoPressure Adaptive Core
  • StayPut Edge Support

The longest running mattress in a box, mattress in Australia, the Ergoflex 5G comprises of 3 layers:

  • 9cm of genuine High Density Visco Elastic Memory Foam - 85kg/m³
  • Cool-Sleep airflow foam for the Australian climate
  • Base support layer
  • All combined in aTENCEL® outer cover
VideoThe Koala Mattress | Calm As | Koala AUErgoflex® 5G Mattress vs 9 Tonne Tractor - Extreme Test

Certifications & trial

Koala Calm AsErgoflex
OEKO-TEX®NoYes
CertiPUR-US®YesYes
CertificationsCertiPur-US®, GECA (Good Environmental Choice Australia), B Corp™ , 1% For The PlanetCertiPur-US®, OEKO-TEX®
Other certification info––
Sleep trial120 nights30 nights
Warranty1010
Free shipping––
Free returnsYesYes
Pay laterYesYes
Delivery info

We offer free 4 hour delivery in Sydney, Melbourne, Brisbane, Perth and Adelaide. Everywhere else, delivery is still fast and free.

We offer free next day delivery to Brisbane, Canberra, Melbourne and Sydney and express delivery Australia wide. We also offer after hours and weekend deliveries. Every Ergoflex is delivered right to your door in a beautifully compact box. We were the first to deliver our mattresses this way, and like all excellent ideas it's now an industry standard.

Firmness & feel

Koala Calm AsErgoflex
One firmness fits allNoYes
Select your firmnessNoNo
Adjustable firmnessYesNo
Half and half firmnessNoNo
Flippable / reversibleYesNo
Firmness info

The Koala Calm As mattress has a double-sided comfort layer that you access by unzipping the cover, and flip this layer over. You can choose between medium-firm support and firmer support. Koala recommend trying the medium-firm default side first. The Calm As mattress is the firmest, the Koala in the middle, and the Soul Mate is not quite as firm. The same order applies when using the softer side.

The Ergoflex mattress is a result of over a decade of research and development. This one 'perfect' mattress is rated medium-firm and is optimised with the highest-quality materials available, and has thousands of 5-star reviews from customers in Australia, the UK, and all over the globe.

Construction & materials

Koala Calm AsErgoflex
LayersFlippable Kloudcell™ Comfort, ZoneOut Transition Layer, NoPressure Adaptive CoreViscoelastic Memory Foam, Cool-Sleep™ Airflow System, Support Foam
CoverUltra cooling, our 7cm comfort layer made with COOLMAX® fibre has a 1cm quilted cover designed to help cool your body down with permanent moisture-wicking tech, making it easier to fall asleep faster. - 63% Polyester, 37% Polyester (COOLMAX® Fibre)Tencel
Machine-washable coverNoYes
Ergonomic handlesNoNo
ComfortWhat might feel right to your mate, doesn't feel right to you. That's why we've created our double-sided comfort layer that gives you the choice between medium-firm support and firm support. Just unzip and flip it to find what works for you. Our customisable, double-sided Kloudcell™ comfort layer means you can choose what firmness level works for you. It comes in a medium-firm feel but if you’re on the lookout for something a little firmer, it's as easy as unzipping and flipping the comfort layer.Ergoflex comparable only to TEMPUR® is technically more advanced and superior in performance to every alternative both in this price range and beyond. As a result it is renowned for delivering deep restorative sleep. It is recommended by Practioners for those that suffer from back pain, fibromyalgia, circulation problems and joint complaints or to those simply in need of a good night's sleep. The Ergoflex 5G consists of an unrivalled 9cms of open-cell 85kg/m³ high-density memory foam. Our unique Cool-Sleep airflow system encourages air to freely circulate thorough the mattress keeping you cool while you sleep. Our base layer provides perfectly weighted support for the upper layers and longevity of mattress performance.
SupportDesigned to take the pressure off, a high-density reactive layer with precision cut support zones helps to provide an ideal foundation for sleeping no matter what position you prefer. Known around our neck of the woods as StayPut Edge Support, but all you need to know about our super stable edges is that the chances of anyone sliding off the bed are slim to none.Our mattress is the only true high density memory foam mattress available. Designed to mould itself to the contours of your body it provides instant comfort, more support and better sleep. This confidence is matched by our customers making repeat purchases for additional mattresses time and time again. Our class-leading zero disturbance technology has been a distinctive feature for over 10 years. Promoting deeper, more restful sleep it reduces the likelihood of being woken by a restless sleeping partner. Indeed our ten-year guarantee is underpinned with confidence of a decade of success. Unlike other brands we know our mattresses stand up to our warranty claims - as we have done it in real life for over a decade.
Posts

Koala's Mission

Koala supports 1% for the Planet, and many other charities, check them here...

[Read more]

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Size & weight

Koala Calm AsErgoflex
Available sizesSingle, King Single, Double, Queen, KingSingle, King Single, Double, Queen, King
DimensionsSingle: 29 cmSingle: 23 cm
Single weight (kg)2624
King Single weight (kg)3128
Double weight (kg)3737
Queen weight (kg)4439
King weight (kg)5241

FAQs

Koala Calm As

Is Koala calm as worth it?

The Koala Calm As mattress, known for its comfort, support, and cooling features, is competitively priced and could be a worthwhile choice if it aligns with your sleep preferences and needs. However, individual comfort varies, so consider your personal sleeping habits and any physical conditions before purchasing.

How long will a koala mattress last?

While it's challenging to provide an exact lifespan for the Koala Calm As mattress since it's a relatively new product, we can look at general guidelines and the quality of its construction. Mattresses typically last between 7-10 years, with high-quality ones potentially exceeding this range. The Koala Calm As mattress has been recognized for its quality, receiving the 'Product of the Year' award in the mattress category for 2022 and being CHOICE® recommended. It's a well-constructed product that should provide good durability, but actual lifespan can vary depending on factors such as usage and care. Regular rotation, for instance, can help extend the life of a mattress.

Can the Koala Calm as mattress go on slats?

Yes, the Koala Calm As mattress can be placed on slatted bed frames. However, it's important to ensure that the slats are not too far apart. As a general rule, the gap between slats should be no more than 3 inches (or about 7.6 cm) to provide adequate support and prevent sagging. If the slats are too far apart, it may affect the mattress's support and potentially its lifespan. Always make sure your bed frame is in good condition and provides sufficient support for your mattress.

Ergoflex

Where is Ergoflex made?

The Ergoflex mattress is designed in Australia but manufactured in state-of-the-art facilities located in China. Ergoflex aims to offer a quality product comparable to Tempur mattresses, but at a more affordable price point. The manufacturing process takes place in China, utilizing advanced facilities to ensure the production of high-quality mattresses.

Is Ergoflex a firm mattress?

The Ergoflex mattress is considered medium to firm in terms of comfort, providing a firmer sleeping surface compared to Tempur mattresses, which are generally categorized as medium in terms of firmness. This makes the Ergoflex mattress a suitable choice for back sleepers and heavier-weight side sleepers who typically prefer firmer mattresses for better support. It is important to note that firmness preferences can vary based on individual body weight and personal comfort preferences. Heavier individuals often find firmer mattresses more comfortable and supportive, while lighter sleepers may prefer softer to medium firm options. Density is not directly correlated with firmness, so the "High Density" label does not necessarily indicate a firm foam in the Ergoflex mattress.

What density is Ergoflex?

The Ergoflex mattress utilizes a luxury 5G high-density memory foam layer that is 9cm deep. This high-density foam layer contributes to the overall comfort and support of the mattress. The specific density measurement of the foam is not provided in the available information, but the use of high-density memory foam suggests a foam material that is denser and more durable.

Wrap up

Thank you for checking out this Koala Calm As vs Ergoflex mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.

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