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ComparisonLast updated on 9 July 2025

Ecosa Vital vs Ergoflex vs Onebed Original vs Sleeping Duck

Easily compare the Ergoflex vs Ecosa Vital Mattresses side-by-side.

Ecosa Vital mattress on Mattress Zone Australia
Ergoflex 5G mattress - Mattress Zone Australia
Onebed Original mattress on Mattress Zone Australia
Sleeping Duck Mach II mattress on Mattress Zone Australia
Latest Promotions

Ecosa 10th Birthday Sale - Take 25% Off Sitewide. Offer ends 27/07/2025.

See Ecosa website

Save $225 with code : TAKE25

See offer

EOFY Sale Now On! Up to 60% OFF on mattresses

Unbeatable Deals

Independence Day Sale - ends Sunday - $200 off all stock. Code: 4JULY2025

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At a glance

Recommended For
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What we like
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Keep in Mind
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Essential Mattress Info

Brand
Ecosa (Australia)Ergoflex (Australia)OnebedSleeping Duck
About
  • The original mattress-in-a-box brand, with a 10-year warranty that is tried and trusted
  • First to launch in Australia
  • Recommended by the Australian Back Doctor
  • Supporting families of domestic violence for over ten years
Unlike most mattresses, Sleeping Duck Mach II is not one size fits all as you can customise each mattress side.
Mattress Type
Hybrid (foam & springs)Memory foamLatex & Memory foamHybrid (foam & springs)
Prices
Video
Certifications
CertiPur-US®
CertiPur-US®CertiPur-US®CertiPur-US®✕
OEKO-TEX®
OEKO-TEX®OEKO-TEX®OEKO-TEX®✕

Trial & Warranty

Trial Period
✓✓✓✓
Trial Period (nights)
10030125100
Warranty Length (years)
15101510

Firmness Options

One Firmness Fits All?
✓✓✕✕
Adjustable Firmness
✕✕✓✓
Half-Half Firmness
✕✕✕✓
Selectable Firmness
✕✕✕✓
Flippable / Reversible Firmness
✕✕✕✕
Firmness Info
The Ecosa Vital is a comfortable hybrid mattress with medium firmness that's made to fit all kinds of sleepers.
The Ergoflex mattress is a result of over a decade of research and development. This one 'perfect' mattress is rated medium-firm and is optimised with the highest-quality materials available, and has thousands of 5-star reviews from customers in Australia, the UK, and all over the globe.
The top layer of latex foam is soft and responsive whilst the memory foam (second layer) ensures your body contours to its natural alignment. The layers can also be rearranged if you prefer a softer or firmer mattress. The medium-firm, by far the most popular sleep configuration, your Onebed mattress will arrive with the layers automatically arranged in this order. If you prefer a plusher mattress (medium), simply unzip and switch the latex and memory foam layers around for a softer night's sleep. For those who can never quite find a firm enough mattress, unzip and switch the high-density foam to the top for a configuration sure to set you straight.
Firmness is the most sensitive and personal element of any mattress. Sleeping Duck have re-engineered the traditional mattress to make it modular, allowing you to pick (and even swap) the firmness that's exactly right for you. Simply choose between medium or firm initially. Rest assured, you'll be able to change the firmness via foam swaps for the first 100 nights for free.
Medium:
  • Suitable for side sleepers
  • Sinks in slightly while being supportive
  • Approximately a 6/10 on the firmness scale.

Firm:
  • Suitable for back sleepers
  • Still feels cloud like while maintaining a strong level of support
  • Approximately an 8/10 on the firmness scale.

Half Medium & Half Firm:
  • A different firmness on either side of the bed
  • Ideal for couples who have different firmness preferences.

Mattress Construction

Materials Overview
The Ecosa Vital mattress has 4 layers of foam combined with pocket springs and recycled felt:
  • 5cm Air Memory Foam
  • 4cm Tranquil Foam
  • 1cm Transition Foam
  • 12cm 7 Zone Pocket Springs
  • Recycled Felt
  • 1cm Reinforced Foam
  • Removable OceanCycled™ Cover.
As the most premium mattress in a box in Australia, the Ergoflex™ 5G comprises of the following layers:
  • Luxurious Tencel® Cover
  • Protective Inner Cover
  • 9cm High Density Visco-Elastic Memory Foam (Density: 85kg/m³)
  • 5cm Cool-Sleep Foam
  • 9cm High-Resilience Foam Base.
The Onebed mattress is the perfect sleep surface for a revolutionary sleep experience. It is a three-layer foam construction:
  • Plush Polyester Cover
  • 4cm Dunlop Latex (top layer)
  • 4cm Viscoelastic Memory Foam (middle layer)
  • 17cm High-Density Polyurethane Foam (bottom layer).
The Sleeping Duck is made for sleepers who want the best of old and new. The Sleeping Duck is Australian designed and combines a combination of technologies in the one mattress:
  • Australian made AntiGravity surface foam (made from high density AirGrown polyurethane foam)
  • Australian made Precision Firmess Pads (made from high density AirGrown polyurethane foam)
  • The Motherboard: a multi-zoned steel spring system
These elements create a highly comfortable, breathable and supportive mattress on both the lumbar and neck.
This award-winning, GECA certified mattress is loved by their customers.
Comfort Info
Pincore holes in the memory foam allow for ultra-breathability. Proudly carbon neutral. All carbon produced to create and deliver the Vital Mattress is offset via Green Story.
Ergoflex is comparable only to TEMPUR®, yet it is technically more advanced and superior in performance to every alternative both in this price range and beyond. As a result it is renowned for delivering deep restorative sleep. The OEKO-TEX® Standard 100 certification makes it a great option for asthma and allergy sufferers as the mattress is resilient to the growth of bacteria, moulds, mildew and fungi. Class-leading zero disturbance technology promotes deeper, more restful sleep as it reduces the likelihood of being woken by a restless sleeping partner. Just watch the video above to see how little disturbance is caused by a parachuter landing on the mattress (spoiler: the wine glass doesn't even fall over!)
The unique cushioning effect from the combination of latex and memory foam provides zero-motion transfer, meaning all movement stays on the side of the bed where it belongs. You'll enjoy an uninterrupted sleep without being woken by your partner.
Appreciating that everyone is different, Sleeping Duck allows you to choose from a medium or firm mattress (or half-half on Queen and King sizes). Over the course of your 100 night trial you can change the firmness of your mattress depending on the way you are sleeping. These firmnesses can be adjusted with just the pull of a zip.
The ComponentAdapt customisation system empowers you to take full control of the comfort of your mattress. This is achieved via interchangeable Precision Pads that you can swap out for both you and your partner. After sleeping on your mattress, you can contact the SDHQ who can help you to customise and adapt the mattress with up to 256 combinations possible.
Support Info
Ecosa's best-selling memory foam combines with 7 zoned pocket springs. The pocket springs are zoned along the body to ensure better alignment and support where you need it, so you can have a pain-free sleep. These pocket springs are individually wrapped coils that move independently to contour to your body, and firmer springs are used along the perimeter of the mattress for reinforced edge support.
The Ergoflex 5G mattress is the only true high density memory foam mattress available. Designed to mould itself to the contours of your body it provides instant comfort, more support and orthopaedic pressure-relief. It is recommended by Practioners for those that suffer from back pain, fibromyalgia, circulation problems and joint complaints or to those simply in need of a good night's sleep.
No one likes the feeling of a sinking, lumpy mattress. So this mattress has no springs but still has the essential cheeky bounce, so you'll enjoy that balanced, springy feel without the quicksand collapse. Springy latex and high-density memory foam come together to create the ideal balance of comfort and support for all body types.
The Sleeping Duck Mach II has a multi-zone support structure to make sure every part of your body is wonderfully supported and comfortable. Pocket Springs are far more resilient and provide better support over a longer period of time. They're specifically designed to ease the human body to relaxation and relieve pressure points by varying the distribution of weight throughout the entire surface.
The mattress has superior edge support thanks to the reinforced spring perimeter through the use of 2.3mm springs on the entire border. This allows you to sleep edge-to-edge, making your Queen size feel like a King, and allowing you to sit or sleep on the edge without the rolling or sliding off feeling.
Independently pocketed springs create zero disturbance between you and your sleeping partner.
Comfort Specs
No Disturbance technology means you can have undisturbed sleep, no matter how much you or your sleeping buddy moves in their sleep. The combination of Air Memory Foam with pincore holes and zoned pocket springs allows for air to flow freely throughout all layers of the Vital Mattress, leaving you with a breathable mattress and an ultra-cool night's sleep.
High Density Visco-Elastic Memory Foam
The foam design has billions of ball-shaped open cells that give added breathability than traditional memory foams which have been known to sleep hot. Cool-Sleep Foam
This unique Cool-Sleep airflow system encourages air to freely circulate thorough the mattress keeping you cool while you sleep. It does this by using a specially-engineered foam design that instead of being a rectangular block of foam it more resembles an upside down egg carton, which has channels for temperature-regulation. These work in combination with the 3D mesh panels in the outer cover to disperse heat.
Dunlop Latex
By using latex as the top layer, Onebed mattresses are designed to draw heat away from the sleep surface. Enjoy the difference of optimised air flow for a cooler, more comfortable night's sleep. All layers use highly breathable foam, which allows air to flow freely throughout the layers, keeping the mattress fresh.
AntiGravity Foam
The top layer was engineered in pursuit of the ultimate comfort. The foam which doesn't contain any latex or memory foam offers superior comfort and cushioning. It actually improves on the combination and provides increased pressure relief, buoyancy and breathability. The hyper-adaptable properties of the AntiGravity foam allows it to rapidly reshape around you as you move, allowing unimpeded movement, not achievable with the more rigid moulding that memory foam provides. It is produced via pressure expansion rather than chemical reactions which means it is 8x more open than latex and memory foam. Furthermore, it's all Australian made.
The use of the pocketed springs allows for far superior air circulation and ventilation than all-foam mattresses. This helps to keep your mattress cooler and drier.
Support Specs
Tranquil Foam is a pressure relieving comfort foam to support you through the night. The Transition Foam alleviates the reactive force of the pocket springs and enhances the no partner disturbance. Pocket Spring with 7 zones of support for each part of the body, supports your spine and cushions pressure points. Recycled Felt is a protective layer for the pocket springs, made from 100% recycled materials. Finally, reinforced firm foam supports and protects the pocket springs.
High Density Visco-Elastic Memory Foam
This comfort layer gives the optimum level of support, shifting responsively to your movements. You will experience a feeling of pure weightlessness as every part of your body is supported and cradled which alleviates pressure points (such as your hips, back, and shoulders). High-Resilience Foam Base
This base layer provides the precise support for the upper foam layers and gives the mattress its performance longevity. Ergoflex mattresses stand up to their warranty claims - Ergoflex's ten-year guarantee is underpinned with the confidence of having had more than a decade of success and continuing.
Dunlop Latex
A generous 4cm layer gives you that cheeky bounce needed for night time activities, without the need for springs. Memory Foam
High-density viscoelastic memory foam provides unrivalled pressure relief. As you body heats up, memory foam moulds to the natural contours of your body. High-Density Polyurethane Foam
This HD foam provides support for sleepers of all sizes and gives the longevity required to last for years to come.
The combination of the changeable, high-density foam layer and the individually-wrapped pocketed spring multi-zone support layer, creates a system that is highly responsive to your needs.
The multi-zone spring system has three types of springs that are specifically engineered - 2.3mm springs around the very edge, 2.0mm springs through your back and hip zones and 1.8mm springs through your shoulder zone. The shoulder and hip zones conform whilst more support is provided to the lower back and head zones, therefore giving you the required alignment for a restorative night's sleep.
The use of these Twice Tempered IndestructSprings is not just for their ductility, strength and durability properties but to provide comfort and support through proper spinal alignment.
Fabric Specs
The Vital Mattress cover is OceanCycle certified, meaning up to 120 plastic bottles were collected from the ocean and repurposed into the cover. This cover may be removed and machine washed. Simply zip the top off and pop it in your washing machine.
Luxurious Tencel® Cover
This Tencel® outer cover provides a natural, antibacterial and breathable sleep surface. Tencel is sustainable an outperforms natural cotton in terms of moisture-wicking and breathability. It can also be removed and is machine-washable at 30°. The cover also has vented 3D mesh panels at each end to allow heat to escape. Protective Inner Cover
This super fine inner cover protects the core foam layers.
Plush Polyester Cover
The cover is woven from plush polyester and has large comfortable dimples. This aesthetically-pleasing design is also practical as the cover is removable and washable.
BreatheTech Cover
The vortex spun bamboo yarn top cover is designed for maximum breathability and ease of switching foam layers. Soft and silky to touch, it also has natural anti-microbial properties that keep it fresher for longer. The cover easily unzips and is machine washable. Plus no annoying buttons that you feel with tufted mattresses. This high performance bamboo yarn is knitted to ensure optimal breathability for air and liquid, to ensure it remains dry and cool.
Manufactured in
ChinaChinaChinaChina

Suitability

Side Sleepers
✓✓✓✓
Back Sleepers
✓✓✓✓

Size & Weight

Single
✓✓✓✓
Single Dimensions
188 x 92 x 23 cm187 x 92 x 23 cm188 x 92 x 25 cm188 x 92 x 31 cm
Single Weight (kg)
242430
King Single
✓✓✓✓
King Single Dimensions
203 x 107 x 23 cm203 x 106 x 23 cm203 x 107 x 25 cm203 x 107 x 31 cm
King Single Weight (kg)
302836
Double
✓✓✓✓
Double Dimensions
188 x 138 x 23 cm187 x 137 x 23 cm188 x 138 x 25 cm188 x 138 x 31 cm
Double Weight (kg)
353743
Queen
✓✓✓✓
Queen Dimensions
203 x 153 x 23 cm203 x 152 x 23 cm203 x 153 x 25 cm203 x 153 x 31 cm
Queen Weight (kg)
403952
King
✓✓✓✓
King Dimensions
203 x 183 x 23 cm203 x 183 x 23 cm203 x 183 x 25 cm203 x 183 x 31 cm
King Weight (kg)
484165
California King
✕✕✕✓
California King Dimensions
✕✕✕203 x 203 x 31 cm
California King Weight (kg)
✕✕✕74

Delivery

Delivery Cost
FREEFREEFREEFREE
Delivery Info
Free shipping and free returns in Australia. Free next day delivery in metro Melbourne, Sydney, Brisbane, Perth and Adelaide.
Free next day delivery to Brisbane, Canberra, Melbourne and Sydney and express delivery Australia wide. Every Ergoflex is delivered right to your door in a beautifully compact box. Ergoflex were the first to deliver mattresses this way, and like all excellent ideas it's now an industry standard. Note: free mattress returns not applicable to all locations.
Onebed mattresses are delivered for free, arriving in a compressed esky-sized box that will fit through any door with ease.
Free next business day for almost all of Australia or choose your preferred delivery date and time. Delivered straight to your door.
Prices
Latest Promotions

Ecosa 10th Birthday Sale - Take 25% Off Sitewide. Offer ends 27/07/2025.

See Ecosa website

Save $225 with code : TAKE25

See offer

EOFY Sale Now On! Up to 60% OFF on mattresses

Unbeatable Deals

Independence Day Sale - ends Sunday - $200 off all stock. Code: 4JULY2025

See offer