🇦🇺 Australia · Foam, spring & gel grid hybrid mattress vs Foam

Emma Zero GravityvsKoala Calm As

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

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Emma Zero GravityUp To 55% OffKoala Calm As
Emma Zero Gravity logoEmma Zero Gravity

Emma Zero Gravity

by Emma · Foam, spring & gel grid hybrid mattress

Up To 55% Off

10 · 100-night trial

Koala Calm As logoKoala Calm As

Koala Calm As

by Koala · Foam

10 · 120-night trial

Pricing by size

Emma Zero Gravity

Single$3,539
King Single$3,969
Double$4,349
Queen$4,729
King$5,319

Koala Calm As

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

Essential information

Emma Zero GravityKoala Calm As
TypeFoam, spring & gel grid hybrid mattressFoam
Launched20232022 (brand 2015)
BrandEmmaKoala
Made inGermanyChina
Unique points

The Zero Hybrid Mattress is a 5 layer construction with the unique Airgrid leading the way to make this mattress truly special:

  • Airgocell® Foam
  • Zero Gravity Layer (AirGrid®)
  • HRX Foam
  • Pocket Spring Layer
  • HRX Foam Base

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
VideoEmma - The One Mattress For EveryoneThe Koala Mattress | Calm As | Koala AU

Certifications & trial

Emma Zero GravityKoala Calm As
OEKO-TEX®YesNo
CertiPUR-US®NoYes
CertificationsOEKO-TEX®CertiPur-US®, GECA (Good Environmental Choice Australia), B Corp™ , 1% For The Planet
Other certification info––
Sleep trial100 nights120 nights
Warranty1010
Free shipping––
Free returnsYesYes
Pay laterNoYes
Delivery info

It is delivered quickly, free of charge. Delivery Time: 1 - 7 Business Days. Free, No-Contact Delivery for all Orders.

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

Firmness & feel

Emma Zero GravityKoala Calm As
One firmness fits allYesNo
Select your firmnessNoNo
Adjustable firmnessNoYes
Half and half firmnessNoNo
Flippable / reversibleNoYes
Firmness info

The Emma Zero Gravity mattress offers an exceptional level of firmness, thanks to its AirGrid Technology. This unique feature dynamically adapts to body movement, providing instant and optimal pressure relief. The individually encased steel pocket springs enhance the firmness, contributing to superior breathability and prolonging mattress lifespan. With this mattress, you get firmness that cradles your pressure points, ensuring maximum comfort and a feeling of sleeping on a cloud.

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.

Construction & materials

Emma Zero GravityKoala Calm As
LayersAirgocell® Foam, Zero Gravity Layer, HRX Foam, Pocket Spring Layer, HRX Foam BaseFlippable Kloudcell™ Comfort, ZoneOut Transition Layer, NoPressure Adaptive Core
CoverThe Emma cover is soft-to-touch, making it very comfortable to lie on. It is breathable and also completely removable, making it easy to wash.Ultra 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)
Machine-washable coverYesNo
Ergonomic handlesYesNo
ComfortSweaty nights are a thing of the past. The Zero Gravity has large air channels with improved airflow that keep the mattress from retaining heat and allowing it to maintain the ideal temperature all night long. The gel material is cool to the touch which helps you unwind and fall asleep faster.What 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.
SupportNo more back or neck pain with the Zero Gravity mattress. Thanks to our premium AirGrid® technology, along with a multi-zone pocket spring system, supports the wider areas of your back, cradling the pressure points across your body. This brings maximum pressure relief, support, and comfort while you sleep.Designed 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.
Posts

Top Recommended Mattress by CHOICE®

Zero gravity has Innovative AirGrid technology for weightless and undisturbed sleep

[Read more]

Koala's Mission

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

[Read more]

Size & weight

Emma Zero GravityKoala Calm As
Available sizesSingle, King Single, Double, Queen, KingSingle, King Single, Double, Queen, King
DimensionsSingle: 25 cmSingle: 29 cm
Single weight (kg)25.126
King Single weight (kg)32.231
Double weight (kg)38.537
Queen weight (kg)46.744
King weight (kg)56.452

FAQs

Emma Zero Gravity

Why is the Emma Zero Gravity so special?

The Emma Zero Gravity mattress stands out due to its innovative design that maximizes comfort, breathability, and support. Its unique AirGrid layer, a hyper-elastic material with large air channels, adapts instantly to movement and cradles pressure points, ensuring you experience a feeling akin to sleeping on clouds. Coupled with a novel system that combines foam, pocket springs, and AirGrid, the mattress provides optimal pressure relief in all sleep positions. Moreover, the advanced motion-isolating technology in the Emma Zero Gravity mattress minimizes disturbance from partner movements, promoting uninterrupted sleep. These distinctive features make the Emma Zero Gravity a standout choice, offering a sleep experience that feels almost weightless.

Does an Emma mattress smell?

Like many new mattresses, an Emma mattress may initially exhibit a slight smell, often referred to as "off-gassing." This common occurrence is due to the release of volatile organic compounds (VOCs) produced during the manufacturing process of synthetic foams. While typically harmless, the smell can be unpleasant to some. However, it should dissipate within a few hours to a few days if the mattress is left to air out in a well-ventilated room. It's important to note that as of my last update in September 2021, Emma mattresses are CertiPUR-US certified, indicating they are made without harmful chemicals and have low VOC emissions. For any concerns regarding smell, reaching out to Emma's customer service department is advised.

Does the Emma Zero Gravity Hybrid get hot?

The Emma Zero Gravity Hybrid Mattress incorporates specific features designed to prevent overheating and promote a cool sleep environment. Its Zero Gravity Technology ensures maximum airflow and thermoregulation through air holes present in the AirGrid layer, facilitating a cool sleep surface that allows you to drift off faster. Additionally, the AeroFlex® Pocket Springs, each individually encased, adapt dynamically to body movement and offer superior breathability compared to standard foam mattresses. The mattress also features the Emma UltraDry™ Breathable Cover, which is not only super soft to touch but also removable and easy to wash. This ensemble of features works cohesively to maintain a cool sleeping environment and prolong the lifespan of the mattress.

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.

Wrap up

Thank you for checking out this Emma Zero Gravity vs Koala Calm As 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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