Sleeping Duck Review


June 20, 2022

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Sleeping Duck is a mattress in a box company based in Australia and has won multiple awards, turned down shark tank investors, plus won Australia’s ‘Best Innovation’ Mattress in a Box for 2019. The quality of Sleeping Duck speaks volumes and matches its achievements. Lately, it’s gone through a significant rebrand and is now called SD Mach II with improved aesthetics, functionality, and a few layer name changes. However, what's excellent is the comfort of the mattress is unchanged, and now it’s more comfortable to interchange the foams, so you get a range of firmness levels. Existing reviews are still certainly valid for this new model.

What other people say - 4.8/5 from 1688 reviews

How We Review

In our reviews, you’ll find a comprehensive evaluation of customer sleeping duck reviews, shipping, value for money, firmness, trial period, material, and more. We keep our reviews unbiased, and after reading this review, you will have a clear understanding of the Sleeping Duck mattress is best for you.




Partner Disturbance


Value For Money


Trial Length


Customer Satisfaction



  • Adjustable firmness
  • Same-working-day delivery -(metro areas)
  • High-quality
  • 100 nights free trial period


  • Expensive compared to other mattresses
  • Heavy design
  • Not an environmentally friendly production process (check final section)

Sleeping Duck Coupon

Deal: No current deal on the Sleeping Duck mattress

"The best mattress I’ve ever slept on. I was nervous buying a mattress online. Sleeping Duck made it so easy.... if I wasn’t 100% happy they would provide a full refund. I had nothing to lose! I no longer wake with a sore neck or back. The mattress is firm and snuggly at the same time. The best night’s sleep ever. Thank you" Adrienne Hamann - SD Mach Review

What's the SD Mach II mattress made from?

It's easy to see what makes Sleeping Duck unique. From the breathable bamboo cover to the combination of hyper-adaptive foam, high-density foam, and pocket springs for excellent support.

AntiGravity Foam - Acting as the top layer with open cells for breathable cooling effects. The comfort foam created by Sleeping Duck doesn't contain memory foam or latex, although acts like the best of both of the materials. Providing pressure relief, responsiveness, and breathability. And it's Australian made and GECA Certified.

Precision Firmness Pads - Is the supporting second layer underneath the comfort layer. This layer is the customisable layer where you can get the firm option and you'll be given a dense foam, and if you want a medium firmness, you can get the absorbent foam.

Motherboard - The bottom layer is the motherboard support layer which contains individually-wrapped springs (pocket springs). This layer makes partner disturbance minimal because of the independently acting springs that adjust to your body.

sleeping duck materials and layers

BreatheTech Cover - The soft, breathable bamboo cover has natural protection against microbes. The cover has an exciting stitching pattern and promotes cooling throughout the mattress.

Sleeping Duck Pillow - The pillow is made from the Hyper-Adaptive® foam like that mattress, so that means it’s 8x more open than standard latex and memory foam combinations. So the pillow allows airflow to pass through it, making sure your head stays cool at night.

Because the pillow is a mixture of memory foam and latex you get the best of both worlds. This combination means you'll feel the pressure relief of memory foam and the buoyancy of the latex, creating a sense of weightlessness whilst getting adequate support.

Interested in getting a better pillow? Read: best pillows in Australia.

Featured Brands

How much does the Sleeping Duck weigh?

The Sleeping Duck mattress weights 48 kilograms (Queen sized). Rest assured, it's compressed in its packaging, making it easier to move around.

How thick is the Sleeping Duck mattress?

  • The hyper-adaptive™ foam 40 millimetres. Now (AntiGravity)
  • The high-density foam is 60 millimetres. Now (Precision Firmness Pads)
  • Pocket Springs 200 millimetres. Now (Motherboard)
  • Giving a combined thickness of  300 millimetres.
Sleeping Duck Mattress Thickness of layers


188 x 92 x 30cm

32 (kg)

King Single

188 x 92 x 30cm

35 (kg)




188 x 138 x 30cm

42 (kg)

203 x 153 x 30cm

48 (kg)

203 x 183 x 30cm

60 (kg)

What's the cost?

The Sleeping Duck mattress is slightly more expensive relativity speaking compared to other mattress brands. However, Sleeping Duck doesn't just have an online presence they also have a physical head office and main showroom in Victoria (which is currently closed dues to Corvid).

* Please note, prices may change over time, and so can availability.




King single









"Whilst I don't have any diagnosed back/neck issues I do experience some lower back pain and general soreness from time to time and since sleeping on this mattress have not experienced it at all. Extremely comfortable and supportive, I don't even notice when my partner rolls around as much. He too says it's the best! I am sleeping so much better, waking up actually feeling rested and ready for the day! - Tania M. - Sleeping Duck Mattress Review

Sleeping Duck Coupon

Deal: No current deal on the Sleeping Duck mattress

Bonuses and Delivery

  • Risk Free 100 Night Trial Period
  • Full 10 Year Warranty
  • Adjustable firmness

The SD Mach I from Sleeping Duck is a mattress in a box. So it arrives vacuum packed making it easier to move around than a traditional mattress. Before opening make sure to put it in position before opening it up. If you do have to move it afterwards the mattress has handles on the side making the process manageable. You get free delivery Australia wide and orders from Melbourne are usually delivered on the next business day.

Is the Sleeping Duck mattress right for you?

The unique hybrid design makes the SD Mach II great for back, stomach, or side sleepers. However this comes at a hefty price, if you think it’s on the pricier side check out our Sleeping Duck Alternatives

If you and your partner prefer different firmness levels, simply select half-half under the firmness option with any queen or king mattress.

Are Sleeping Duck mattresses good for back pain? If you suffer from back, spinal, shoulder or hip pain the SD Mach II is an excellent choice because you can adjust the firmness at each contact point, to get the responsiveness right for you. The zonal motherboard of pocket springs also absorbs movement, and pressure.

Overall, It’s more expensive than its competitors, but if the price is justifiable for the different features then it’s an excellent pick. The new model is no longer Australian made but the foams are made in Australia then shipped to China to be assembled and then back to Aus. I’m not sure how environmentally friendly this process is, but that's the assembly process. 

You get a 100 night trial, and a 10 year warranty. If you're looking for an affordable hybrid alternative check out the Noa mattress review or the Macoda mattress review.

Sleeping Duck Coupon

Deal: No current deal on the Sleeping Duck mattress