Sealy Posturepedic vs Sleeping Duck - 2024 Review

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Sleeping Duck

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Sealy Posturepedic

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Essential Information

Mattress Type
Hybrid (Memory foam + Spring)
Hybrid (foam & springs)
Year Launched
1923
2014
Unique Points

The Sealy Majestic Elevate mattress has different levels of firmness and features two layers:

  • ComfortCore® layer - (gel-infused memory foam)
  • AlignSupport™ technology - (two-stage spring support system)

There isn't too much extra information on these layers.

The Sleeping Duck now called the SD Mach II is Australian designed but produced in China. It combines a combination of technologies in the one mattress:

  • Australian made AntiGravity surface foam (made from high density AirGrown polyurethane foam)
  • Australian made Precision Firmness Pads
  • The Motherboard: a multi-zoned steel spring system
Video

Firmness & Feel

Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Good Firmness Standard
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Select Your Firmness
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Adjustable Firmness
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Half-Half Firmness
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
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: 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.

Certifications

OEKO-TEX®
Red Cross. It means No, not available. Not included.
Red Cross. It means No, not available. Not included.
Red Cross. It means No, not available. Not included.
Red Cross. It means No, not available. Not included.
CertiPur-US®
GECA (Good Environmental Choice Australia) Certified
Other Certification Info

Pricing

Single
King single
Double
Queen
King
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
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Construction & Materials

Image
Sealy Posturepedic
Sleeping Duck
Layers
ComfortCore® layer, AlignSupport™ technology
AntiGravity foam, Precision Firmness Pads, Motherboard (pocket springs)
Cover
Luxurious bamboo-fibre blend with triple-foam comfort layers for contour, comfort and individual support
Bamboo
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Machine-washable Cover
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Ergonomic Handles
Comfort
Sealy’s signature ComfortCore® layer, a gel-infused memory foam in the core of the mattress, the Majestic is designed to help adapt to your body shape as you sleep.
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
Sealy has constructed the Majestic mattress with titanium (coil), AlignSupport™ technology, a two-stage spring support system that responds to your unique body shape, to help improve support where it’s needed most as you sleep.
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.
Manufactured in
Australia
China

Posts

Interesting bedtime reading articles

Size & Weight

Available Sizes
Single, King Single, Double, Queen, King
Single, King Single, Double, Queen, King
Mattress Depth
Not Listed
31 cm
Single
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Single Weight (kg)
N/A
30
King Single
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
King Single Weight (kg)
N/A
36
Double
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Double Weight (kg)
N/A
43
Queen
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Queen Weight (kg)
N/A
53
King
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
King Weight (kg)
N/A
60
Super King
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Super King Weight (kg)

FAQ

What are the different levels of Sealy mattresses?

Do Sealy Posturepedic mattresses have pocket springs?

Can Sealy Posturepedic mattresses be flipped?

Where is Sleeping Duck mattress made?

Who is the founder of Sleeping Duck?

Is Sleeping Duck non toxic?

Trial & Warranty

Free Trial
Red Cross. It means No, not available. Not included. Green tick. It means Yes. It's available and good.
Green tick. It means Yes. It's available and good. Red Cross. It means No, not available. Not included.
Sleep Trial (Nights)
100
Warranty (Years)
10
10
Free Shipping
Green tick. It means Yes. It's available and good.
Green tick. It means Yes. It's available and good.
Free Returns
No
Yes

Delivery

Delivery Info

Shipping depends on where you order from, but it's most stores charge for delivery.

Free next business day for almost all of Australia. Delivered straight to your door.

Related Comparisons

Thank you for checking out this Sealy Posturepedic vs Sleeping Duck mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.