ComparisonLast updated on 9 July 2025
Sleeping Duck vs Onebed X
Easily compare the Onebed X vs Sleeping Duck Mattresses side-by-side.
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Independence Day Sale - ends Sunday - $200 off all stock. Code: 4JULY2025 See offer | EOFY Sale Now On! Up to 60% OFF on mattresses Unbeatable Deals |
At a glance | |
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Recommended For | |
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What we like | |
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Keep in Mind | |
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Essential Mattress Info | |
Brand | |
Sleeping Duck | Onebed |
About | |
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) | Hybrid (foam & springs) |
Prices | |
Video | |
Certifications | |
CertiPur-US® | |
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OEKO-TEX® | |
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Trial & Warranty | |
Trial Period | |
Trial Period (nights) | |
100 | 125 |
Warranty Length (years) | |
10 | 15 |
Firmness Options | |
One Firmness Fits All? | |
Adjustable Firmness | |
Half-Half Firmness | |
Selectable Firmness | |
Flippable / Reversible Firmness | |
Firmness Info | |
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:
Firm:
Half Medium & Half Firm:
| The Onebed X has a feel that will be perfect for the vast majority. It gradually transitions from a firmer supportive base to softer comfort layers for that ultimate feeling of comfort and support. |
Mattress Construction | |
Materials Overview | |
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:
This award-winning, GECA certified mattress is loved by their customers. | The Onebed X is the latest hybrid to hit the Australian market, combining all the best features of different mattress types into one, for the ultimate choice in luxury mattresses. It is a five-layer hybrid construction:
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Comfort Info | |
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. | The open-cell foam structure, airy pocket springs, infused cooling gel and highly breathable fabric keep the Onebed X refreshingly cool and comfortable, all night, every night.
The Onebed X also isolates motion with paramount precision, passing the wine glass test with ease, so you stay deep in a state of deep sleep even if your sleeping partner is tossing and turning. |
Support Info | |
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. | The Onebed X gives you the optimal balance between comfort and support thanks to softer memory foam layers, the zoned pocket springs, and firm base foam. |
Comfort Specs | |
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. | Davina Foam This breathable foam, used in the comfort layer, is extremely bouyant and helps with motion-isolation. Gel-Infused Memory Foam The gel infusion helps keep you cooler. Charcoal Memory Foam Charcoal eliminates odours, absorbs moisture and helps regulate temperature. Making it the perfect ingredient to keep your mattress fresh. Pocket Springs Individually wrapped pocket springs allow air to circulate between the springs, this combines with the base foam which has support notches in the perimeter that allow hot air to escape - which is forced out as the springs move under your weight. |
Support Specs | |
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. | Gel-Infused Memory Foam This memory foam layer alleviates pressure points by conforming to the contours of your body, for a sensation of weightlessness comfort. 5-Zoned Pocket Springs Different gauge springs are used to create 5 unique support zones. These zones provide advanced orthopaedic support by mirroring your body's weight distribution from head to toe, so you can say goodnight to aches and pains. High-Density Base Foam This gives the mattress the perfect foundation and creates a perimeter around the springs for added edge support - allowing you to sleep edge-to-edge, and extra support when sitting on the side of the mattress. |
Fabric Specs | |
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. | Viscose Blended Cover The Onebed X has a highly breathable viscose blended fabric, woven into a luxurious cubic dimple-protruding texture which you can gently feel beneath your sheets. |
Manufactured in | |
China | China |
Suitability | |
Side Sleepers | |
Back Sleepers | |
Size & Weight | |
Single | |
Single Dimensions | |
188 x 92 x 31 cm | 188 x 92 x 30 cm |
Single Weight (kg) | |
30 | |
King Single | |
King Single Dimensions | |
203 x 107 x 31 cm | 203 x 107 x 30 cm |
King Single Weight (kg) | |
36 | |
Double | |
Double Dimensions | |
188 x 138 x 31 cm | 188 x 138 x 30 cm |
Double Weight (kg) | |
43 | |
Queen | |
Queen Dimensions | |
203 x 153 x 31 cm | 203 x 153 x 30 cm |
Queen Weight (kg) | |
52 | |
King | |
King Dimensions | |
203 x 183 x 31 cm | 203 x 183 x 30 cm |
King Weight (kg) | |
65 | |
California King | |
California King Dimensions | |
203 x 203 x 31 cm | |
California King Weight (kg) | |
74 | |
Delivery | |
Delivery Cost | |
FREE | FREE |
Delivery Info | |
Free next business day for almost all of Australia or choose your preferred delivery date and time. Delivered straight to your door. | You'll be sleeping on your Onebed mattress shortly after ordering it, delivered to your door for free. It comes compressed in a box so you can easily move it to your bedroom. |
Prices | |
Latest Promotions | |
Independence Day Sale - ends Sunday - $200 off all stock. Code: 4JULY2025 See offer | EOFY Sale Now On! Up to 60% OFF on mattresses Unbeatable Deals |