🇦🇺 Australia · Foam vs Hybrid (Foam & Springs)

Koala Calm AsvsEmma Diamond Hybrid

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

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Koala Calm AsEmma Diamond HybridUp To 55% Off
Koala Calm As logoKoala Calm As

Koala Calm As

by Koala · Foam

10 · 120-night trial

Top pickEmma Diamond Hybrid logoEmma Diamond Hybrid

Emma Diamond Hybrid

by Emma · Hybrid (Foam & Springs)

Up To 55% Off

10 · 100-night trial

Pricing by size

Koala Calm As

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

Emma Diamond Hybrid

Single$2,219
King Single$2,469
Double$2,719
Queen$2,959
King$3,339

Essential information

Koala Calm AsEmma Diamond Hybrid
TypeFoamHybrid (Foam & Springs)
Launched2022 (brand 2015)2021
BrandKoalaEmma
Made inChinaEurope
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

Take your sleep to the next level with the Emma Diamond Hybrid. This mattress has all the needed features to give you the sleep you deserve.

  • Emma Diamond Degree® patented technology
  • Foam layer with graphite dust for temperature regulation
  • Optimised for deep sleep
  • Dynamic support from pocket spring and memory foam
  • Climate-regulating and elastic cover
VideoThe Koala Mattress | Calm As | Koala AUEmma Diamond Degree® Technology

Certifications & trial

Koala Calm AsEmma Diamond Hybrid
OEKO-TEX®NoYes
CertiPUR-US®YesNo
CertificationsCertiPur-US®, GECA (Good Environmental Choice Australia), B Corp™ , 1% For The PlanetOEKO-TEX®
Other certification info––
Sleep trial120 nights100 nights
Warranty1010
Free shipping––
Free returnsYesYes
Pay laterYesNo
Delivery info

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

Free, No-Contact Delivery for all Orders. You will receive your mattress in 1- 3 business days for metro areas and 5 - 10 business days for rural areas.

Firmness & feel

Koala Calm AsEmma Diamond Hybrid
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.

This mattress has all the needed features to give you the sleep you deserve regardless of your preferred sleeping position. The best way to find out whether a mattress is right for you, is from the comfort of your own home. That's why Emma give you 100 nights to test the Emma Diamond Hybrid Mattress. If you decide its not quite right, you can send it back for free.

Construction & materials

Koala Calm AsEmma Diamond Hybrid
LayersFlippable Kloudcell™ Comfort, ZoneOut Transition Layer, NoPressure Adaptive CoreDiamond Degree® Graphite Foam, Adaptive comfort foam, Pocket springs, HRX 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)Climate-regulating and elastic cover - This fully breathable, removable, and washable premium cover is designed to help facilitate heat dissipation of the Diamond Degree graphite foam. Its airy structure lets the mattress breathe during the day without hindering the thermoregulatory effects of the mattress.
Machine-washable coverNoYes
Ergonomic handlesNoYes
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.Diamond Degree® graphite foam - With the infusion of diamond and graphite particles, this innovative coating quickly dissipates excess heat away; extending the duration of your deep sleep phase. The low rolling-resistance of the foam also requires less effort from your body when you involuntarily toss and turn during sleep, meaning you’re less likely to wake yourself up or be disturbed by your partner in the middle of the night. Adaptive comfort foam - This ergonomically designed foam layer adapts to your body and optimally distributes body pressure, allowing you to sleep comfortably regardless of your build or sleeping position (back, side, stomach).
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.Pocket springs - The individually encased steel pocket springs provide dynamic body adaptation and improved breathability over a standard foam mattress, while also allowing for movement isolation to minimize disturbances brought about by movements. HRX foam - This supportive foam layer provides optimal 3 zone back support and superb durability.
Posts

Koala's Mission

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

[Read more]

Top Recommended Mattress by CHOICE®

Good Design Award Winner for 2022, Rated 4.7 out of 5 stars in ProductReview

[Read more]

Size & weight

Koala Calm AsEmma Diamond Hybrid
Available sizesSingle, King Single, Double, Queen, KingSingle, King Single, Double, Queen, King
DimensionsSingle: 29 cmSingle: 25 cm
Single weight (kg)2620
King Single weight (kg)3123
Double weight (kg)3727
Queen weight (kg)4432
King weight (kg)5240

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.

Emma Diamond Hybrid

What firmness is the Emma Diamond Hybrid mattress?

The Emma Diamond Hybrid Mattress is described as having a medium firmness level. This classification suggests that it offers a balanced blend of comfort and support. It's designed with adaptive comfort foam that conforms to your body shape, providing tailored support where you need it most. In addition, the mattress features pocket springs that work independently, contributing additional support and stability. The medium firmness level of the Emma Diamond Hybrid Mattress makes it suitable for a wide range of sleepers, as it can accommodate various sleeping positions and body types.

Why are hybrid mattresses more expensive?

Hybrid mattresses, such as the Emma Diamond Hybrid Mattress, typically command a higher price point due to a few key factors. They incorporate a combination of materials, including foam layers for comfort and pocket springs for support, which requires a more complex construction process. This blend not only offers balanced comfort and support but also tends to enhance the mattress's durability and lifespan. Furthermore, the substantial size and weight of hybrid mattresses can lead to increased shipping and handling costs. Despite the higher initial cost, many sleepers find the long-term benefits of hybrid mattresses, such as their balanced comfort, improved support, and enhanced lifespan, to be a worthwhile investment.

Does the Emma Diamond Hybrid get hot?

The Emma Diamond Hybrid Mattress incorporates specific features aimed at mitigating heat retention and fostering a cool sleep environment. It utilizes the Emma UltraDry™ Breathable Cover, a fully breathable cover designed to facilitate heat dissipation and maintain an ideal temperature for sleep. Additionally, the mattress is equipped with Diamond Degree Foam, a unique material imbued with diamond and graphite particles. This innovative foam efficiently eliminates excess heat, helping to sustain a cool and comfortable sleeping surface. These combined features work to ensure that the Emma Diamond Hybrid Mattress remains adequately cool for a comfortable and restful sleep.

Wrap up

Thank you for checking out this Koala Calm As vs Emma Diamond Hybrid 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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