Koala Vs Sleeping Duck Vs Emma


January 9, 2024

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Choosing the right mattress can be a struggle when you have many excellent, award-winning mattress options. So, which one to choose? 

While we can’t decide for you, we can surely make it easier. So, today, we’ll compare three leading mattress brands - Koala, Sleeping Duck, and Emma.  

Quick Comparison 

A. Koala Mattress

The Koala mattress offers you a 120-night trial period and comes with a 10-year warranty. Koala also offers free shipping all across Australia, and its queen mattress costs $840. 

Why It’s Great 

The medium-firmness of the mattress makes it easily adjustable. Also, the Zero Disturbance technology and the three-zone support make the mattress ideal for everyone.


  • No partner disturbance 
  • Anti-bacterial treatment 
  • GECA certified 

B. Sleeping Duck mattress review

The Sleeping Duck queen mattress costs a lot more than Koala, around $1649. However, it offers same-day delivery with no shipping charges. Sleeping Duck also offers a 100-night trial period and a 10-year warranty on all its mattresses. 

Why It’s Great 

The BreathTech mattress cover with vortex spin bamboo yarn offers maximum breathability. Plus, the antigravity high-density surface foam facilitates better airflow. 


  • Multi-zoned support 
  • Interchangeable firmness system 
  • Real steel springs 

C. Emma Mattress

Emma is the cheapest of the three brands as its queen mattress costs only $649.50. It also offers a 100-night trial period with a 10-year warranty and free shipping.

Why It’s Great

The mattress is excellent at regulating body temperature, and its high-quality foams adapt to all body types. Its ergonomic design supports all sleeping positions. 


  • Innovative Airgocell technology 
  • Motion isolation 
  • Durable and retains shape 

Overview Of Differences 

1. Feel 

The Koala mattress is on the firmer side, and you won’t get the feeling of bounciness while using it because it only has memory foam and no springs. Sleeping Duck also has high-density foam layers, but it’s a hybrid mattress with pocket springs. Out of the three, Emma has an unrivalled cooling technology ideal for hot sleepers. 

2. Spinal Support 

When it comes to spinal or lumbar support, Sleeping Duck offers better support and pressure relief because of its pocket springs. At the same time, Koala and Emma have dense foam layers to offer spinal support. 

3. Eco-Friendly 

Among the brands mentioned above, Koala is known for its eco-friendly approaches. It’s a B-Corp certified brand and works to maintain environmental sustainability by manufacturing eco-friendly mattresses and promoting natural bedding options. 

Brand Info 

Both Koala and Emma were founded in 2015, and Sleeping Duck came a year early in 2014. While Koala is known for its sustainable and eco-friendly practices, Sleeping Duck has advanced scientific technologies and designs, making its mattresses one-of-a-kind.

At the same time, Emma has a global customer base and has been known for its high-quality mattresses worldwide. All these brands are regarded quite highly in the Australian mattress industry. 

Construction And Materials 

The Koala mattress has three foam layers - a top fabric, an anti-slip base, and the polyurethane foam layer. Hence, Koala is essentially a standard all-foam mattress having a supportive foam layer. 

Even the Sleeping Duck Mach II mattress has a BreatheTech cover that’s soft and silky, offering higher breathability. The ComponentAdapt customisation system helps adjust the foam layer from medium to firm. 

On the other hand, the Emma mattress comes with three layers - a fresh air comfort cover, an Airgocell foam layer, and HRX foam. The foam layers offer excellent body alignment and create a relaxed sleeping environment.

Comfort, Firmness, And Feel

Koala’s new mattress also has a Tencel Lyocell in the top layer to keep the mattress dry. Its foam structure offers a balanced feel and prevents your body from sinking into the mattress.

In contrast, Sleeping Duck is a medium-firm mattress that’s the perfect blend of comfort and support. It comes with individually encased pocket springs, offering the maximum spinal support if you have a bad back. 

Even though Emma doesn’t have any pocket springs, it uses a supportive HRX foam layer to ensure proper alignment of your hip, shoulders, and spine. The Airgocell foam also ensures better heat dissipation. Hence, it’s the perfect mattress for a good night’s sleep that’s sweat-free. 

Size And Pricing 

1. Koala Mattress 

  • Single: 188 x 92 x 25 cm and $600
  • King Single: 203 x 107 x 25 cm and $704
  • Double: 188 x 138 x 25 cm and $800
  • Queen: 203 x 153 x 25 cm and $840
  • King: 203 x 183 x 25 cm and $1000 

2. Sleeping Duck Mattress 

  • Single: 188 x 92 x 31 cm and $999
  • King Single: 203 x 107 x 31 cm and $1099
  • Double: 188 x 138 x 31 cm and $1349
  • Queen: 203 x 153 x 31 cm and $1649 
  • King: 203 x 183 x 31 cm and $1999 

3. Emma Mattress

  • Single: 188 x 92 x 25 cm and $449.50
  • King Single: 203 x 107 x 25 cm and $499.50 
  • Double: 188 x 138 x 25 cm and $599.50
  • Queen: 203 x 153 x 25 cm and $649.50 
  • King: 203 x 183 x 25 cm and $699.50 


Most customers have praised the firmness adjustments of the Koala mattresses that ensure double-sided comfort. Similarly, customers have been impressed with the lumbar support of Sleeping Duck mattresses provided by their durable pocket springs. Even the cooling features of the Emma mattresses have been quite popular among hot sleepers. 

Finer Details 

1. Shipping, Trials, Returns, And Warranties

All three brands offer free shipping all across Australia, and Emma and Sleeping Duck provide a trial period of 100 nights, while Koala has a trial period of 120 nights. Each of them offers a 10-year warranty on all their mattresses. 

2. Sinkage, Bounce, Edge Support, And Motion Isolation

Sleeping Duck mattresses have pocket springs, so they are bouncier than Koala and Emma mattresses and prevent sinkage. The steel springs also offer better edge support to the Sleeping Duck mattresses. But, when it comes to motion isolation, Koala and Emma mattresses are better than Sleeping Duck as they offer zero partner disturbance.

Buyer Feedback

Koala has garnered several positive reviews and received an overall rating of 4.7/5 from 580 reviews, while Sleeping Duck has an aggregated rating of 4.8/5. Meanwhile, Emma also has a total rating of 4.7/5, like Koala. 

Final Verdict 

We’ve made an objective study, and we can tell you that all three brands go head-to-head. While Koala mattresses are more popular and offer a great value for money, Sleeping Duck mattresses have an advanced design that takes comfort to the next level. On the other hand, as you'll see in our Emma comfort review is has excellent cooling technology. 

So, if you want an affordable yet comfortable mattress, Emma is the best bet, followed by Koala. In contrast, Sleeping Duck is a bit overpriced, but if you’re willing to take the high-end option, you can choose its mattresses. 

So, take care and sleep well!