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

Emma Zero GravityvsKoala

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

Vs Mattress is reader-supported, that means if you buy something via a link on this page, we might earn a commission. Thank you kindly.

Emma Zero GravityUp To 55% OffKoala
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

Top pickKoala logoKoala

Koala

by Koala · Polyurethane 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

Single$750
King Single$895
Double$1,000
Queen$1,050
King$1,300

Essential information

Emma Zero GravityKoala
TypeFoam, spring & gel grid hybrid mattressPolyurethane foam
Launched20232015
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

The New Koala Mattress has customisable firmness and 3 zones of support, you can flip the top layer to get the firmness just right. Here's the layers:

  • Lyocell Sleep Surface
  • Kloudcell™ comfort layer
  • NoPressure Adaptive Core
VideoEmma - The One Mattress For EveryoneThe Koala Mattress | Find out More | Koala AU

Certifications & trial

Emma Zero GravityKoala
OEKO-TEX®YesNo
CertiPUR-US®NoYes
CertificationsOEKO-TEX®CertiPur-US®, GECA (Good Environmental Choice Australia), B Corp™ , 1% For The Planet
Other certification info–GECA (Good Environmental Choice Australia) Certified
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 use the latest technology to squish our mattress and deliver it in a small box. Ready to sleep on immediately. 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
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 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.

Construction & materials

Emma Zero GravityKoala
LayersAirgocell® Foam, Zero Gravity Layer, HRX Foam, Pocket Spring Layer, HRX Foam BaseKloudcell™ comfort 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.Tencel - Nothing beats breathability in bed. Made with a TENCEL™ Lyocell fibre, all you need to know about our sensitive and soothing 7cm comfort layer is that it absorbs and releases moisture, making nodding off a breeze.
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.Our customisable, double-sided Kloudcell™ comfort layer means you can choose what firmness level of work 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.To help create an ideal foundation for sleeping, 3 targeted high-density precision cut support zones are designed to take the pressure off. No matter what position you prefer, overall it helps make a better sleeping experience.
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
Available sizesSingle, King Single, Double, Queen, KingSingle, King Single, Double, Queen, King
DimensionsSingle: 25 cmSingle: 25 cm
Single weight (kg)25.120
King Single weight (kg)32.225
Double weight (kg)38.530
Queen weight (kg)46.735
King weight (kg)56.442

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

Why does my Koala mattress smell?

The smell you're noticing from your new Koala mattress is likely due to off-gassing, a common occurrence with new products made from certain materials, including polyurethane foam. Off-gassing refers to the release of volatile organic compounds (VOCs) into the air, and it can result in a unique, often chemical-like smell. This process is generally harmless, and the odor usually disappears on its own within a few hours to a couple of weeks after unboxing. To help speed up the process, you can air out the mattress or place it in a well-ventilated area. However, if the smell persists or causes discomfort, it's recommended to reach out to the manufacturer for assistance.

Can I wash my Koala mattress cover?

Yes, you can wash your Koala mattress cover. It is designed with a removable feature that allows you to unzip it from the mattress. For cleaning, you can place the cover in your washing machine on a cold cycle. After washing, it's best to let it air dry. If you notice any light stains, you can spot clean those using a mild detergent and a soft cloth. Remember, for stubborn stains or extensive cleaning, it might be best to consult with the manufacturer or a professional cleaning service to avoid potential damage.

Can Koala mattress be flipped?

The Koala mattress is designed with a unique feature: it has two flippable layers within the mattress that allow you to adjust the firmness to your liking. These layers are found under the breathable TENCEL® Lyocell Cover, which encases the flippable comfort layer. To adjust the firmness, you simply unzip the mattress cover and flip the double-sided Kloudcell® mattress topper. This feature allows you to customize the feel of your mattress without having to flip the entire mattress, which is not designed to be flipped as the support base layer is not meant for sleeping directly on. Despite this ability to customize firmness, it's still recommended to rotate the mattress head-to-foot regularly to ensure even wear and longevity.

Wrap up

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

Related comparisons

← All Australia comparisons