The 10 Best King Mattresses in Australia

A king mattress measures 183cm x 203cm in Australia, which hands each of two sleepers about 91 centimetres of width, roughly a single bed each. Every king shares that footprint, so the best king mattresses Australia offers compete on profile height, spring construction and perimeter strength.

The category splits by what carries the load. Pocket spring cores use individually wrapped coils that compress on their own, which stops one sleeper’s movement crossing 183 centimetres to the other side. Memory foam builds drop the coils entirely and mould to the body, running warmer unless gel or graphene is worked through the foam. Hybrid builds stack foam or latex over a spring unit to get contouring and airflow together. Latex builds breathe through an open cell structure instead of a cooling additive.

A king is fixed at 183cm x 203cm (72 inches x 80 inches), 30 centimetres wider than queen mattresses at the identical length, so profile height is the dimension that actually moves, spanning 24 to 37 centimetres wherever makers publish it. Each pick was assessed on construction, stated firmness, edge support, warranty term and trial length.

Ten kings are compared below across pocket spring, hybrid, all-foam and latex builds, with one factor a smaller bed lets you ignore: a king is heavy enough that rotating it is a two-person job.

Quick Picks

Best King Mattresses Australia Compared

Product	Link	Type	Best For	Key Spec
Giselle VIVE 4-in-1 Adjustable Mattress	Check price	Hybrid	Couples split on firmness	37cm, dual-zone 7.0 and 7.5
Newentor Hybrid Mattress Pro	Check price	Hybrid	Lumbar support	3,000+ springs, four gauges
Levitex Orion Hybrid Mattress	Check price	Hybrid	Hip and shoulder pressure	Gel foam over egg-crate
Newentor Hybrid Mattress	Check price	Hybrid	Restless partners	Non-slip base, 7-zone dual coil
Giselle Rumba Super Firm Mattress	Check price	Pocket spring	Heavier sleepers	9.0 firm, 2.3mm spring wire
Giselle Marc 9-Zone Latex Mattress	Check price	Hybrid	Graduated support	Nine zones, latex top
Giselle Lvory Gel Foam Mattress	Check price	Hybrid	Certified materials	Seaqual recycled cover
4 Play Mattress	Check price	Hybrid	Changing your mind later	Zip-top, four feel combinations
Boutique Craft Cell Mattress	Check price	All-foam	Motion isolation	Foam edge box, no springs
Macoda Mattress	Check price	Hybrid	Hot sleepers	Graphene foam, 31cm

1. Giselle VIVE 4-in-1 Adjustable Mattress – Best Dual-Zone Firmness

At 37 centimetres this is the tallest mattress in the guide, and the extra height is what makes room for a comfort layer split down the middle of the bed. Each half is set independently, and a reversible transition layer below changes the whole surface between four feels rated 7.0 and 7.5.

On a 183-centimetre span that split does real work. One sleeper can run the firmer setting while the other stays softer, and either half reverses without dragging the whole mattress off the base. The cover unzips for washing, which matters on a bed whose internals get rearranged more than most.

Bulk is the cost. Reconfiguring the layers on a king this deep needs two people and a clear floor, and deep-fitted sheets stop being optional. Five years of warranty also sits well short of the fifteen offered further down this guide, and no trial period comes with it.

Pros

• Each side of the bed carries its own firmness setting
• Four feels from one mattress by reversing layers
• Zipped cover comes off for washing
• Tallest profile here at 37 centimetres

Cons

• Too heavy for one person to reconfigure
• Deep-fitted sheets are compulsory
• Five-year warranty and no trial period

Key specs: Hybrid, 37cm profile, dual-zone 7.0 and 7.5, four reversible settings, zipped washable cover, 5-year warranty.

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2. Newentor Hybrid Mattress Pro – Best Spring Density

Four different spring types share a single core here. A 1.0mm micro-coil layer sits above pocket springs wound at 2.0mm, 2.15mm and 2.4mm, which comes to more than 3,000 springs in a king, with the heaviest-gauge wire running through the lumbar band.

Seven zones and a 2.4mm steel lumbar reinforcement mean the middle third of the bed resists sinking while the shoulder region stays softer, and the perimeter springs are reinforced separately. A phase-change material layer sits under the gel-bead memory foam to shed heat rather than store it, which is the more useful arrangement on a bed holding two people.

The feel is rated medium-soft at 4 out of 10, so anyone after a firm surface should look further down. It is also the heaviest king here at 57.6 kilograms. Against that, the ten-year warranty and 120-night trial are terms none of the imported builds above or below it match.

Pros

• More than 3,000 springs across four separate gauges
• Seven zones with a 2.4mm steel lumbar reinforcement
• Phase-change layer moves heat out rather than holding it
• Ten-year warranty with a 120-night trial

Cons

• Heaviest king in the guide at 57.6 kilograms
• Medium-soft 4 out of 10 will not suit firm sleepers
• Spec tags contradict the page copy on firmness

Key specs: Hybrid, 28cm profile, medium-soft 4 out of 10, more than 3,000 springs in four gauges, 7-zone, phase-change layer, CertiPUR-US foams, OEKO-TEX cover, 10-year warranty, 120-night trial.

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3. Levitex Orion Hybrid Mattress – Best Pressure Relief

Two foam layers stack above the spring unit rather than one. Two centimetres of gel memory foam sit over three centimetres of egg-crate foam, and the profiled surface of that lower layer is what spreads load instead of concentrating it under the hip.

Underneath, five zones of pocket springs run the length of the bed with a reinforced border, rated 7.0 firm. The egg-crate profile also opens a path for air to move sideways, so the gel foam above it holds less heat than the same foam laid on a solid slab would.

Five zones is coarser than the seven and nine-zone layouts elsewhere in this guide, and at 34 centimetres it needs deep sheets. For a sleeper whose complaint is a sore hip or shoulder rather than a sagging back, the doubled comfort layer is the more direct answer.

Pros

• Two separate comfort layers, gel foam over egg-crate
• Profiled foam spreads load off the hip
• Reinforced perimeter at 7.0 firm
• Egg-crate profile vents heat sideways

Cons

• Five zones is coarser than others here
• Needs deep-fitted sheets at 34cm
• No trial period offered

Key specs: Hybrid, 34cm profile, 7.0 firm, 2cm gel memory foam over 3cm egg-crate, 5-zone pocket springs, reinforced edge, CertiPUR-US foams, 5-year warranty.

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4. Newentor Hybrid Mattress – Best Motion Isolation

The underside is the unusual part. A 0.6-centimetre high-grip layer is bonded to the base so the mattress will not creep across slats or a platform, which is a genuine nuisance on a king wide enough to sit on two separate bases.

Above it, seven zones alternate two coil hardnesses, softer coils under the shoulders and harder coils through the lumbar section, so a shift in position stays on the half of the bed it happened on. Gel-infused memory foam and a phase-change layer handle heat, and a bamboo charcoal cover wicks moisture off the surface.

At 25 centimetres it is shallower than most of the hybrids here, and lighter at 44.41 kilograms, which makes it the easiest king in this guide to shift alone. Someone replacing a bed that has been sliding on its base for years will notice that grip layer before they notice the springs.

Pros

• Non-slip grip base stops the mattress creeping on slats
• Two coil hardnesses across seven zones
• Lightest king here at 44.41 kilograms
• Ten-year warranty with a 120-night trial

Cons

• Shallower 25cm profile gives less comfort layer
• Medium-firm only, with no firmness options
• Super King is listed below King, suggesting unmaintained pricing

Key specs: Hybrid, 25cm profile, medium-firm 6 out of 10, 7-zone dual-hardness pocket springs, 0.6cm non-slip base, phase-change and gel foam, CertiPUR-US, OEKO-TEX, 10-year warranty, 120-night trial.

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5. Giselle Rumba Super Firm Mattress – Best Extra Firm

Carry handles are stitched into the sides, which on a king is less of a detail than it sounds. The springs are wound from 2.3mm wire, thicker than anything else here, and the build is rated 9.0 on the maker’s own scale.

There is almost no give at the surface. A 24-centimetre tight-top profile puts very little padding between the sleeper and the spring unit, so the hips stay near the surface and stay level. It is a no-turn design, so those handles are for shifting it into position rather than flipping it over.

Side sleepers will find the shoulder has nowhere to go, and the thin comfort layer transmits more of the spring feel than a euro top would. For a heavier sleeper, or anyone who has concluded that every mattress they have owned was too soft, this is the firmest surface in the guide.

Pros

• Firmest surface here at 9.0
• 2.3mm spring wire, the heaviest gauge in the guide
• Side carry handles help two people place it
• Slim 24cm profile fits standard sheets

Cons

• Almost no give for side sleepers
• Thin comfort layer passes on the spring feel
• No trial period offered

Key specs: Pocket spring, 24cm profile, 9.0 ultra firm, 2.3mm spring wire, tight top, no-turn design, side carry handles, 7-zone.

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6. Giselle Marc 9-Zone Latex Mattress – Best Nine-Zone Support

Nine zones is the finest spring division in this guide, where most builds settle for five or seven. The extra bands mean support changes more gradually from shoulder to calf, and a natural latex layer sits over the coils rather than memory foam.

Latex answers faster than memory foam and does not hold a body impression, so rolling over on a wide bed does not involve climbing out of a hollow first. It also breathes through its own cell structure, which is why no cooling gel is listed for this model and none is needed.

The 6.5 medium-firm rating puts it in the middle of the range here, and 34 centimetres again means deep sheets. Anyone who has found memory foam too slow to respond, but does not want the surface hardness of the extra-firm picks, sits between those two extremes on this one.

Pros

• Nine spring zones, the most granular layout here
• Natural latex responds faster than memory foam
• No body impression left after rolling over
• Breathes without a cooling additive

Cons

• Deep-fitted sheets needed at 34cm
• Latex feel is firmer underfoot than foam
• No trial period offered

Key specs: Hybrid, 34cm profile, 6.5 medium-firm, 9-zone pocket springs, natural latex comfort layer, euro top.

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7. Giselle Lvory Gel Foam Mattress – Best Recycled Cover

The cover is woven from Seaqual yarn, a fabric spun from plastic recovered out of the ocean, and it is the only mattress in this guide whose face fabric has a recycled origin. Certification runs deeper than the cover: the foams are CertiPUR-US, the textiles carry OEKO-TEX, and the latex is SGS tested.

The spring unit is divided into three zones rather than five or seven, which is a coarser split, but it is paired with gel-infused memory foam under a euro top and rated 6.5 medium-firm. Airflow through the cover is better than a tight knit manages, so surface heat clears faster than the foam content suggests.

Three zones is the weakest support division here, and on a king that means less differentiation between the shoulder and lumbar regions than the seven and nine-zone builds offer. It earns its place on materials and certification rather than on engineering, and for a buyer who weighs those first it is the clearest pick in the guide.

Pros

• Seaqual cover spun from recovered ocean plastic
• CertiPUR-US, OEKO-TEX and SGS certified
• Gel-infused memory foam under a euro top
• Better airflow than a tight-knit cover

Cons

• Three spring zones is the coarsest layout here
• Less shoulder-to-lumbar differentiation on a wide bed
• No trial period offered

Key specs: Hybrid, 30cm profile, 6.5 medium-firm, 3-zone pocket springs, gel-infused memory foam, Seaqual recycled cover, CertiPUR-US, OEKO-TEX, SGS, 5-year warranty.

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8. 4 Play Mattress – Best Australian Made

This one is made in Australia, and it is the only mattress in the guide that is. The top panel unzips completely and the comfort inserts underneath are swapped rather than flipped, with four feel combinations supplied in the box.

Because the inserts come out, each half of the bed can be set to a different firmness and changed again later without buying anything further. That is a different mechanism to the reversible layers at the top of this guide, where the available feels are fixed by what is already sealed inside. Underneath sits a twice-tempered seven-zone pocket coil system.

It is the priciest route into adjustability here, and the zip-top construction means the cover assembly is doing structural work that a sewn top would not. Fifteen years of warranty and 120 nights to decide are the strongest terms in the guide, which is the trade that justifies the outlay.

Pros

• Made in Australia
• Zip-off top with four swappable feel combinations included
• Each half of the bed sets independently
• Fifteen-year warranty with a 120-night trial

Cons

• Priciest route to adjustable firmness here
• Zip-top cover carries structural load
• Profile height is not published

Key specs: Hybrid, interchangeable firmness with four combinations, zip-top comfort inserts, twice-tempered 7-zone pocket coil, Australian made, 15-year warranty, 120-night trial.

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9. Boutique Craft Cell Mattress – Best All-Foam Build

No springs at all in this one. Memory foam sits over a high-density zoned core with a gel cooling layer above that, and the perimeter is a reinforced foam box rather than a firmer row of coils.

Removing the coil unit takes partner disturbance close to zero, which on a bed this wide is the single biggest thing a light sleeper notices. The foam edge box is doing the job that reinforced border springs do elsewhere in this guide, and it holds the surface flat enough to sit on while dressing.

The maker states plainly that it lacks the responsive bounce of a coil bed, and that is the honest trade: rolling over takes more effort than on any sprung pick here. For someone sharing a king with a restless partner, or a shift worker sleeping while the house is awake, silence is worth more than bounce.

Pros

• No springs, so partner movement barely registers
• Reinforced foam perimeter box keeps the edge usable
• Gel cooling layer over the memory foam
• Fifteen-year warranty with a 120-night trial

Cons

• Slower to respond than any sprung pick here
• The maker concedes it lacks coil bounce
• Profile height is not published

Key specs: All-foam, medium-firm, memory foam over a high-density zoned core, gel cooling layer, reinforced foam edge, CertiPUR-US foams, 15-year warranty, 120-night trial.

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10. Macoda Mattress – Best Cooling

Heat management here runs through three separate features rather than one additive. Graphene is worked through the memory foam to conduct warmth away, the comfort foam above it is air-blown and perforated, and the bamboo-blend cover is a cool-touch weave.

Under that sit five zones of twice-tempered pocket springs with an extra-firm perimeter row and foam reinforcement at the border. The firmness is owner-set as well: the top panel unzips and two internal inserts flip to move the bed between soft, medium and firm, so a single purchase covers three feels without swapping any parts in or out.

One model is all this maker sells, so there is no alternative here if the feel turns out wrong, and at 54 kilograms in a king it is heavy to reconfigure. The ten-year warranty and 100 nights to decide sit between the imported builds and the Australian-made pick, and the graphene layer is the most thorough cooling stack in the guide.

Pros

• Graphene, perforated foam and a cool-touch cover work on heat together
• Firmness flips between soft, medium and firm after delivery
• Extra-firm perimeter springs plus foam edge reinforcement
• CertiPUR-US foams and Oeko-Tex certified fabrics

Cons

• Only one model, so no fallback if the feel is wrong
• Heavy to reconfigure at 54 kilograms
• Australian manufacture is not claimed

Key specs: Hybrid, 31cm profile, owner-adjustable soft to firm, graphene memory foam, 5-zone twice-tempered pocket springs, extra-firm perimeter, CertiPUR-US, Oeko-Tex, 10-year warranty, 100-night trial. King 183 x 203 x 31cm, 54kg.

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How to Choose a King Mattress

Measure the room, not just the bed. A king needs 183 centimetres of wall and enough clearance to walk both sides, which a room that took a queen comfortably may not have. Check the delivery path as well: a slab king will not turn a tight stairwell that a compressed, boxed king clears without trouble.

Check what the mattress will sit on. Many king ensembles are two half-width bases pushed together, and a mattress bridging that join needs a support core stiff enough not to dip along the centre line. On a slatted frame the gaps should be no wider than roughly 7 centimetres, since wider spacing lets the base sag and voids a common warranty condition.

Edge support costs more on a king than on any other size. Where a perimeter is unreinforced the outer 10 centimetres or so compress under weight, and on a 183-centimetre span that is width two people were paying for. A firmer border row of springs or a foam encasement keeps the surface flat to the edge and makes sitting on the side to dress feel stable.

Decide how much partner movement you will accept. Individually pocketed coils confine a shift in position to the half of the bed it happens on. All-foam cores remove almost all of it but hold more heat and answer more slowly. Zoning matters here too, because a king carries two sleepers side by side and a single-firmness core gives them one shared sag line down the middle. Where the complaint is spinal rather than thermal, a comparison of mattresses for back pain narrows the field faster than firmness ratings do.

Read firmness as the maker’s own scale. A 7.0 from one range is not a 7.0 from another, and spec fields are sometimes simply wrong, with plush models listed as firm by the people who built them. Sleeping position is the steadier guide: side sleepers need the shoulder to drop in, back and front sleepers need the hips held level. A memory foam mattress contours further than a spring core at the same stated number.

Weigh the trial and the warranty together, then weigh the mattress. Kings in this guide run from about 44 to 58 kilograms, so rotating one is a two-person job and returning one is bulkier than returning any other size. Confirm who pays return freight before buying, because on a king that cost is the largest of any mattress size and it is commonly the buyer’s.

Frequently Asked Questions

Verdict

Width is what a king buys, and the picks that use it best treat the two halves as separate beds. The Giselle VIVE 4-in-1 Adjustable Mattress does that most cheaply, setting each side to its own firmness inside a 37-centimetre profile, though it carries five years of cover and no trial. Where terms matter as much as the build, the Newentor Hybrid Mattress Pro answers with more than 3,000 springs across four gauges, ten years of warranty and 120 nights to send it back. For a buyer who expects to change their mind about firmness more than once, the 4 Play Mattress is the only pick here made in Australia and the only one whose comfort inserts lift out and swap.