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Emma Diamond Hybrid vs Noa Luxe vs Sleeping Duck

Easily compare the Sleeping Duck vs Noa Luxe vs Emma Diamond Hybrid Mattresses side-by-side.

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Essential Mattress Info

Emma (Australia)Noa Home (Australia)Sleeping Duck
  • Two layers of springs (micro coils + pocket springs)

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 (latex, foam & springs)Hybrid (foam & springs)
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Other Certification Info

REACH Certified (the EU equivalent of CertiPur-US in the United States)

GECA (Good Environmental Choice Australia) Certified

Trial & Warranty

Trial Period
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Trial Period (nights)
Warranty Length (years)

Firmness Options

One Firmness Fits All?
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Adjustable Firmness
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Half-Half Firmness
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Selectable Firmness
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Flippable / Reversible Firmness
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Firmness Info

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.

The Luxe mattress is suitable for most sleeping positions and body types, it's about a 7-8 on the firmness scale. Its design offers a soothing cloud-like comfort while delivering uplifting support and breathability. The Noa Lite is the firmest of the Noa mattresses, the Noa mattress is a medium-firm feel and the Noa Luxe falls inbetween both.

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.

  • Suitable for side sleepers
  • Sinks in slightly while being supportive
  • Approximately a 6/10 on the firmness scale.

  • 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

Take your sleep to the next level with the Emma Diamond Hybrid. The Emma Diamond Hybrid Mattress consists of four different layers:

  • Climate-Regulating and Elastic Cover
  • Diamond Degree® Graphite Foam
  • Adaptive Comfort Foam
  • Pocket Springs
  • HRX Foam.

The ultimate mattress featuring premium, eco-friendly materials, the latest innovations in coil technology and uncompromising comfort. For those wanting to replicate the ultimate, five-star luxury hotel sleep experience. The Luxe layers are:

  • Hand-Tufted Tencel Pillow-Top Cover
  • Cooling Gel Memory Foam
  • Bamboo Charcoal Latex
  • 3cm Micro Coils
  • Transition Foam
  • 5-Zoned Individually Pocketed Springs with Perimeter Edge Support
  • Hand-Tufted Side Cover.

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

The excellent cooling and heat dissipation properties of the Diamond Hybrid mattress helps your body maintain the ideal sleeping temperature, enabling you to sleep longer in the deep sleep phase and feel more well rested when waking up.

An eco-friendly, breathable Tencel cover, a luxurious layer of bamboo charcoal latex, gel infused open-cell foams, innovative micro springs, and individually pocketed springs all work together to provide optimal airflow, wicking away body heat and keeping you cool all night.

Adaptive transition foam provides outstanding motion isolation to localise your sleeping partner's movements so you sleep better.

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

A hybrid mattress without compromise: the Diamond Hybrid mattress completely moulds to your body, thanks to its adaptive comfort foam and pocket spring construction.

Sleep on the cloud-like pillow-top, innovative foams and luxurious micro-coils that provide unparalleled comfort and targeted pressure relief for your hips and shoulders. Finally, with 5 zones of support in the base springs that align your spine and provide perfect pressure relief this makes the Luxe one phenomenal mattress!

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

Diamond Degree® Graphite Foam
This foam layer has an infusion of diamond and graphite particles, this innovative coating quickly dissipates excess heat away; extending the duration of your deep sleep phase.

Pocket Springs
Hundreds of individually encased steel pocket springs ensures superb ventilation by allowing air to circulate.

Cooling Gel Memory Foam
Cooling memory foam wicks away heat away to keep you fresh throughout the night.

Bamboo Charcoal Latex
Open-cell, natural latex infused with bamboo charcoal is a luxurious, natural, eco-friendly material that is fragrance-free, allergen-free and non-toxic. The porous structure of this super material absorbs excess moisture and repels odours.

Micro Coils & Individually Pocketed Springs
Both spring layers are encased in a highly permeable mesh material that optimises airflow and enhances breathability.

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

Diamond Degree® Graphite Foam
The low rolling-resistance of the Diamond Degree® graphite foam 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
The ergonomically designed adaptive comfort 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).

Pocket Springs
Individually encased steel pocket springs provide dynamic body adaptation, while also allowing for movement isolation to minimise disturbances brought about by movements.

HRX Foam
The supportive HRX foam layer provides optimal back support thanks to incisions in the foam and gives superb durability.

Cooling Gel Memory Foam
This premium memory foam offers deep pressure relief, contouring and cushioning.

Bamboo Charcoal Latex
Latex is extremely responsive and highly supportive for your pressure points, such as your back, shoulders and hips. You'll feel cradled with a cloud-like comfort feel.

Micro Coils
Responsive micro coils provide advanced comfort and support as the layer expands and contracts in response to your body.

Transition Foam
This foam is excellent for motion isolation giving you zero partner disturbance.

5-Zoned Individually Pocketed Springs with Perimeter Edge Support
The base layer is made of highly responsive and supportive pocket springs that provide a subtle bounce and minimise motion transfer. The springs are arranged in 5 areas of ergonomic support zones which are strategically placed under your lower back and pressure points to keep your spine properly aligned. Made of thick-gauge steel, these springs offer phenomonal durability.

A high-density foam encases the springs, this perimeter edge support allows you to sleep edge-to-edge on the mattress without feeling like you'll fall off and sit on the edge without feeling the springs.

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

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. The top of the cover is made of 99% polyester and 1% elastane.

The bottom cover has convenient handles and is made of 87% polyester and 13% polypropylene, and the sides are made of 100% of polyester.

Hand-Tufted Tencel Pillow-Top Cover
An ultra-breathable top cover which is extremely soft to the touch. Tencel is naturally antibacterial and hypoallergenic. The stunning hand-tufting locks the layers in place. Whilst the cover is not removable, you can spot clean it or add a mattress protector.

Hand-Tufted Side Cover
The side cover is a polyester knit that is breathable and beautifully detailed. It further secures the internal layers from moving.

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


Side Sleepers
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Back Sleepers
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Size & Weight

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Single Dimensions
188 x 92 x 25 cm188 x 92 x 31 cm188 x 92 x 31 cm
Single Weight (kg)
King Single
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King Single Dimensions
203 x 107 x 25 cm203 x 107 x 31 cm203 x 107 x 31 cm
King Single Weight (kg)
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Double Dimensions
188 x 138 x 25 cm188 x 138 x 31 cm188 x 138 x 31 cm
Double Weight (kg)
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Queen Dimensions
203 x 153 x 25 cm203 x 153 x 31 cm203 x 153 x 31 cm
Queen Weight (kg)
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King Dimensions
203 x 183 x 25 cm203 x 183 x 31 cm203 x 183 x 31 cm
King Weight (kg)
California King
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California King Dimensions
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California King Weight (kg)
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Bedtime Reading

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Delivery Cost
Delivery Info

Free delivery and returns. Orders placed before 10 am on weekdays are eligible for same-day delivery (between 2-6 pm) in the metro areas of Sydney, Melbourne, Brisbane and Adelaide. Otherwise you will receive your mattress within 1-3 business days depending on your proximity to Emma's warehouses.

Orders for in stock Noa mattress sizes are typically delivered within 2 to 10 business days. If it's not right for you, Noa will pick it up for free during the 120 night trial period and refund you in full (limit 1 return per household).

Free next business day for almost all of Australia or choose your preferred delivery date and time. Delivered straight to your door.

Latest Promotions
Spring into Great Sleep Get a FREE Mattress with the Wooden Bed Plus, up to 55% OFF on selected products. Ends September 25
See offer
The Clearance Sale ! Get $400 off mattresses. Ends September 12
See offer
EOFY Sale! Get up to $423 off sleep systems and up to $250 off mattress bundles. Ends July 2nd
See offer