Updating your bed with the best throws and nicest quilts is often a priority, so why should something as important as a mattress be overlooked?
After a long day of work, chores and daily life duties, we can universally agree that jumping into a cosy king-sized bed fit with a quality mattress is one of life’s greatest gifts.
If your bed leaves you uncomfortable, gives you bodily pains and you find yourself tossing and turning all night, it might be time to upgrade to a king mattress.
But we understand – finding the right mattresses for your body can be a nightmare (and an expensive investment). So, we researched for you and curated a list of the very best king mattresses on the market, weighing up different firmness levels, materials and technology, as well as reading through thousands of reviews.
The best king mattresses to shop in Australia 2024
01
Sealy Superior plush king mattress
$3115, David Jones
The Sealy Advantage Superior Plush mattress is like sleeping on a cloud – if clouds were designed with expert support and longevity in mind. It combines luxurious comfort layers with a CoreSupport system that’s all about giving your body the right support where it matters most. And don’t worry about getting too hot, its breathable design keeps things cool and fresh night after night.
Key features:
- Plush comfort with breathable Sealy fibre and quilt foam
- Gel foam layer designed for extra lower back comfort
- CoreSupport system for long-lasting body support
- Reinforced edge for more sleep space and stability
- HealthShield antimicrobial treatment for a fresh sleep surface
- Made in Australia with a 10-year guarantee
02
Emma Sleep Luxe king mattress
$3260, Emma Sleep
The Emma Sleep Luxe mattress (formerly known as the Emma Diamond II or the Emma Luxe Breeze) is here to upgrade your night’s sleep. With revolutionary Thermosync foam, it’s easy to enjoy quality temperature regulation for faster sleep onset and a deeper rest. Designed by sleep experts, it also adapts to your body, ensuring comfort designed *just* for you.
Key features:
- Medium-soft firmness
- Combination of memory foam and 7-zone infinity springs for superior support
- Winner of ‘Best Cooling Mattress 2024’ by Best Mattress AU
- Comes with a machine-washable cover for easy convenience
03
Koala Plus king mattress
$1890, Koala
The Koala Plus mattress is Koala’s most advanced mattress yet, featuring 33 per cent more Kloudcell for superior support, cooling and durability. It incorporates CoolThread technology and breathable cooling gel Kloudcell for enhanced airflow and ventilation, as well as a seasonal topper for temperature control.
Key features:
- 33 per cent more Kloudcell for more comfort
- KloudCell is double-sized to switch between medium-firm and firm comfort
- Five targeted high-density support zones
- Quilted topper can be unzipped and flipped from Organic Cotton to CoolThread to suit different temperatures
04
Origin Hybrid Pro king mattress
$1599.20 (usually $1999), Origin Mattress
Winner of ‘Premium Mattress of the Year 2023’ in Australia and the UK (plus, over 30 international awards), this cooling mattress is crafted with eight layers for the deepest sleep. Designed with a patented SmartClimate cooling system to keep hot sleepers cool throughout the night and an extra-plush pillowtop for cloud-like comfort and support, you’ll experience the most deep and undisturbed sleep every night.
Key features:
- Perfect firmness for all sleepers (rated 6-7 on a scale of 1-10)
- Extra plush pillowtop for cloud-like comfort
- Designed by top sleep specialists worldwide
- Featuring HexaGrid Plus comfort layer and an advanced SmartClimate cooling system
- Winner of over 30 international awards
- One tree planted for every mattress sold
05
Ergoflex 5G memory foam king mattress
$1167.99 (usually $1599.99), Ergoflex
Sink into five layers of memory foam goodness with the 5G king mattress by Ergoflex. It features a 9cm top layer of high-density visco-elastic memory foam for body-shaping performance, preventing back pain and zero partner disturbance, meaning you can stay deep in your slumber until the birds start singing.
Key features:
- Winner of Australia’s ‘Best Mattress for Back Pain in 2024’
- Naturally anti-allergenic
- Cool-Sleep Airflow system
- Recommended by practitioners across Australia
- Suited for use on electric adjustable beds
- Tried and trusted choice since 2006
06
Eva Premium Adapt king mattress
$1600 (usually $ 1950), Eva
The Eva king mattress combines the dreamy comfort of plush memory foam with the premium support of pocket springs – all delivered to your doorstep mattress-in-a-box style. Upgrading your existing mattress has never been easier.
But the standout feature has to be the customisable firmness. Each mattress comes with three built-in firmness levels – soft, medium and firm – so you can immediately try all three in your home. However, if you’d like to adjust your mattress further, Eva will send you an additional foam layer for free (there are two additional foam layers – softer and firmer – which aren’t included but can be requested). Plus, you can also purchase half-half foam layers, perfect if you and your partner have different sleeping preferences.
Key features:
- Nine adjustable firmnesses available, including half-half layers
- Dedicated foam encasement for edge support
- Cooling gel memory foam and CoolMax top layer fabric for temperature regulation
07
Ecosa Pure king mattress
$1300 (usually $2000), Ecosa
Within Ecosa’s range of mattresses, the Pure mattress offers the best spinal alignment with zoned support for your back, shoulders and knees. Plus, enjoy undisturbed sleep with its advanced weight distribution technology and breathable layers.
Key features:
- Adjustable firmness from medium to medium-plush by changing the layers
- Seven zones of high-gauge pocket springs
- Adaptable Latex Foam technology conforms to your body’s contours
- Breathable materials and moisture-wicking cover
- Made from eco-friendly materials
08
Atlantis king mattress
$2149, Atlantis Sleep
Rest easy knowing the mattress you’re sleeping on from Atlantis Sleep is doing good for the planet. The Sea-Soft top cover is made from innovative Seaqual fibre combined with renewable TENCEL. Seaqual fibre is made from rescued plastics from the ocean while TENCEL is made from sustainably sourced wood – the combination of the two creates a super soft, breathable, moisture-absorbing fabric.
Encased within the cover is a Hybrid-Flow layer for breathability and pressure relief, a Comfort-Adjust layer for personalised comfort and a layer of premium pocket spring for contoured body support.
Key features:
- Soft, medium, firm and half-half-firmness options available
- Free firmness swaps after 21 nights
- Super soft Australian knitted quilt cover and ultra-breathable pressure-relieving comfort layers
- Multi-zoned support system optimises body contouring and minimises partner disturbances
09
Sleep Firm king mattress
$1291 (usually $1519), Firm Sleep
This firm mattress by Sleep Firm has been awarded as Bedbuyer’s ‘Best Firm Mattress’ three years in a row – 2022, 2023 and 2024 – and is perfect for those who prefer a firmer sleeping surface. With high-density foam comfort layers and pocket springs for optimal support, this Melbourne-made mattress-in-a-box prevents excessive sinking or sagging, especially around the hips and lower back, to alleviate bodily pains. Plus, it comes with a 15-year warranty.
Key features:
- Rated a 9 out of 10 on the mattress firmness scale
- Up to 1326 quality pocket springs
- Springs are 42 per cent stronger than standard ones
- Five separate sleeping zones
10
Sleep Republic high definition pocket spring king mattress
$1359 (usually $1599), Sleep Republic
Winner of the ‘Best Overall Mattress in a Box’ three years in a row by Bedbuyer, recommended by CHOICE two years in a row and endorsed by the Australian Spinal Research Foundation, we introduce you to your next king mattress upgrade.
With up to 2500 high-definition pocket springs for support, a luxuriously soft cashmere knitted pillowtop for ultimate softness and a layer of gel-infused memory foam that provides pressure relief – it’s easy to understand why Sleep Republic is one of the top mattress brands in Australia.
Key features:
- Award-winning mattress
- Dynamic edge support
- 2500 high-definition pocket springs provide support in five specific body zones
- All returned mattress are donated to charities like the Salvation Army
11
Macoda king mattress
$1400, Macoda
Is your mattress too soft or too firm? If you’re looking for a mattress that is *just* right, then look no further than the Macoda king mattress.
This latex and gel memory foam mattress is adjustable to your liking by unzipping and removing the white top of the mattress to reveal two foam inserts — one thick and thin. When flipped accordingly, the mattress density is adjusted from soft to firm.
Key features:
- Winner of ‘Australia’s Best Comfort Mattress 2024’ by Bedbuyer
- Customisable firmness with the flippable layers
- Five zones of individual pocket springs
- Signature cool-touch cover optimises breathability
- Graphene-infused memory foam instantly adapts to the body’s contours for uninterrupted sleep
12
SD Mach II king mattress
$1999, Sleeping Duck
You can never go wrong with the highly-rated mattress brand, Sleeping Duck. Its award-winning SD Mach II king mattress features the iconic anti-gravity foam (which is more responsive than memory foam) and pocket springs with tailored support zones, which contour to the curves of your body. Additionally, it features a Permiter Zone that provides unmatchable edge support.
Plus, you’ll have the luxury of choosing between two solid firmness levels, or you can opt for a half-and-half option, which is an ideal choice for couples.
Key features:
- Customisable firmness – medium, firm and half-half options available (with soft and extra firm custom-made options available after purchase)
- Includes a removable and washable BreatheTech cover made from bamboo yarn
- Reinforced perimeter support
- 100 per cent Australian made high-density foams
13
Osteopedic medium Euro top pocket spring king mattress
$409 (usually $999), Temple & Webster
This king mattress from Temple & Webster has become a cult buy with over 770 five-star reviews. With zero partner disturbance technology, pressure-relieving top padding foam layers for prime comfort and support, and a medium-firm design, all at an affordable price, it’s no wonder it’s remained a top pick.
Key features:
- Medium firmness
- Five-zone pocket springs
- Zero partner disturbance technology
- Durable side-handles
- Pressure-relieving Euro-top padding foam layers
- Luxurious 400gsm knitted jacquard cotton cover
What is the best king mattress to buy?
The best mattress meets all of your specific sleep needs. Perhaps you run hot while you sleep and you’re in need of a breathable mattress, or you’re a memory foam mattress fan, while your partner much prefers a bed with pocket springs. Whatever your different needs may be, we believe it’s important to address it – after all, having a good night’s sleep shouldn’t be compromised.
So, if you’ve been putting off the task of updating your mattress for a while, then this is your sign to swap it with one of our top picks of king mattresses that are fit for…well, a king.
Which is better: a memory foam mattress or a spring mattress?
If you’re looking for a mattress that provides pressure relief, support, zero-partner disturbance and is hypoallergenic, a memory foam mattress is the way to go. If you are on a budget, or you prefer a mattress that is more responsive with better airflow, then a spring mattress may be a better option.
