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✦ Koala review · Australia · 5 models

Koala Mattress Review 2026: Is a Koala Actually Good?

We pulled together CHOICE’s owner survey, Bedbuyer’s panel scores, Tom’s Guide, Finder and Better Homes and Gardens, plus thousands of Trustpilot and ProductReview ratings — so you can pick the right Koala, or skip it.

By Kevin, writer & researcher15 min read🔬 Research-based, not sponsored

The short verdict

Is the Koala mattress good? Yes — the standard Koala Mattress is a solid, fairly firm all-foam bed that is very good at stopping a partner’s movement, and it costs A$1,249 for a queen before the near-permanent sale. It is not the best mattress in Australia, and it is not the right Koala for everyone. Our overall Australian pick is still the Sleeping Duck Mach II, which you can see ranked against Koala on our best mattress Australia guide. But for couples on a mid-range budget, the Koala is one of the easiest, lowest-risk beds you can order.

The headline numbers: Bedbuyer’s review panel scored the Koala Mattress 4 out of 5 and rated its two sides at 7.5 and 8.5 out of 10 for firmness — firmer than most people expect from a brand with a cuddly mascot. CHOICE’s member survey gives Koala as a brand an 86% reliability score and 84% satisfaction, mid-table among ten big Australian brands and statistically level with Sleeping Duck and Emma. Owner ratings are split: 4.8 stars from 1,564 reviews on ProductReview.com.au, but only 3.2 from 63 brand-wide reviews on Trustpilot.

4.0/5

Bedbuyer score

Koala Mattress, updated Oct 2026

86%

CHOICE brand reliability

86 Koala owners surveyed

120

Night trial

Warranty “up to 10 years” (Koala)

Our opinionated take, in one line per model. Buy the Koala Mattress if you sleep on your back or stomach, share a bed with a fidget, and want to spend under A$1,300. Buy the Koala Plus if you are a side or combination sleeper — it measured noticeably softer, and adds a seasonal topper. Buy the Polar+ only if heat is your main complaint. Buy the Luxe if you want the softest, most premium Koala and don’t mind paying Sleeping Duck money. Buy the OG (the A$950 entry model, formerly sold as the SE) for a kids’ room or a spare bed. And if you weigh more than about 100kg, or you need firm edges, look past Koala altogether. Our editorial verdict for the standard Koala Mattress is 7.5 out of 10.

#2 · Best for couples

Koala Mattress

All-foam · 25cm, flippable comfort layer

3.2★★★★★★★★★★Trustpilot · 63 reviews

Firmness: Medium-firm or firm (flip)

This is the same evidence card we use on our Australia hub, where the Koala ranks second overall behind the Sleeping Duck Mach II. This page goes deeper: the whole 2026 range, how firm each one really is, and what owners report after years of use.

What owners & testers like

  • Flippable firmness
  • 120-night trial; free delivery Australia-wide, same-day metro if ordered by 3pm weekdays
  • Has been listed on Amazon AU (availability varies)

Watch out for

  • Weak edges
  • Cover not washable
  • Small, mixed Trustpilot sample

Best for

👍 Couples who want low motion transfer

Not best for

✋ Edge sitters, bounce lovers

What expert reviewers concluded

  • Tom’s Guide

    Adjustable comfort on a budget; cover isn’t machine-washable, no handles.

  • CHOICE owner survey

    Koala brand: 86% reliability, 84% satisfaction — mid-table among 10 AU brands.

In owners’ words

Positive
“first one for the caravan, and the Luxe for home, and couldn't be happier”
— Trustpilot reviewer
Negative
“Worst company I ever had to deal with.”
— Trustpilot reviewer

The 2026 Koala lineup: five adult mattresses

If your idea of Koala is one blue box and one mattress, it is out of date. Koala launched in Sydney in 2015 with a single foam bed, replaced it in 2021 with three models (the OG, Calm As and Soul Mate), and has since reshuffled the range again. Better Homes and Gardens’ March 2026 buying guide and Bedbuyer’s October 2026 review updates list five adult mattresses: the Koala SE, the standard Koala Mattress, the Koala Plus, the cooling Polar+ and the top-end Koala Luxe. Koala’s own site on 27 October 2026 showed four in its main lineup: the Koala OG at A$950 (labelled the best seller, 4.6 from 27,948 brand-site reviews), the Koala Mattress at A$1,249, the Koala Plus at A$1,650 (4.8 from 1,493) and the Koala Luxe at A$2,390 (4.8 from 888). The A$950 OG — medium, with 5cm of Kloudcell over three support zones — sits at the same price and spec as the model Bedbuyer and CHOICE reviewed as the SE, so we treat the SE reviews as covering the tier now sold as the OG. The Polar+ appeared only in a footnote that day, not in the main lineup, so check availability before you set your heart on it. Brand-site ratings are Koala’s own, not independent. There is also the Joey, a spring-and-foam bed for kids aged three to twelve, which we don’t cover here.

All five adult models are foam mattresses-in-a-box. That is the single most important fact about the brand: even the A$2,390 Luxe has no springs. You get the foam strengths — quiet, excellent motion isolation, a hugging feel — and the foam weaknesses: softer edges, less bounce, and more effort when you roll over. If you want coils, Koala simply isn’t the brand.

The ladder shows how the range is really organised. Price climbs with height, and the comfort systems get more elaborate as you go up: the OG (reviewed as the SE) has a fixed quilted top, the Koala Mattress adds the flippable comfort layer, the Plus and Polar+ add a zip-off seasonal topper, and the Luxe swaps flipping for a thick plush quilted top over seven support zones. Counter-intuitively, firmness does not climb with price. The cheapest flippable model, the standard Koala, is the firmest bed in the range, and the most expensive is the softest.

A practical note on pricing: the RRPs above are what you will see crossed out, not what you will pay. Better Homes and Gardens recorded the Koala Mattress queen at A$874.30 and the Plus at A$1,154 during a March 2026 sale, while Bedbuyer lists 10% codes most of the year. Treat any Koala price within 10% of RRP as a bad deal and wait for the next event; our best time to buy a mattress guide explains the sale calendar, which in Australia peaks around EOFY, Black Friday and Boxing Day.

What’s inside the Koala Mattress

The standard Koala Mattress is 25cm tall and built from four parts. On top sits a zip-off cover made from recycled polyester and TENCEL Lyocell. Under it is the heart of the bed, a 7cm layer of Koala’s own Kloudcell polyurethane foam that you can unzip and flip — one face is medium-firm, the other firm. Below that is a three-zone support core of dense foam, firmer under the hips where most of your weight sits, and at the very bottom an anti-slip layer that stops the mattress creeping across a slatted base. Bedbuyer notes the foams are CertiPUR-US certified and the packaging is recyclable.

The flippable comfort layer is the Koala’s party trick, and reviewers disagree on how much it matters. Bedbuyer’s panel found a genuine full point between the two sides on this model (7.5 vs 8.5). Finder’s reviewer, testing the earlier OG and Calm As, called the flip “an unnecessary gimmick” and found the zipper fiddly. Both can be true: on the standard Koala the two sides are distinct, while on the Plus and Polar+ Bedbuyer found the difference much smaller. Koala also sells the Koala Mattress in a “half-and-half” configuration, with one side firm and one medium-firm, which BHG highlights — useful for couples who disagree on feel.

The things the spec sheet does not advertise matter too. There are no side handles on any Koala, which every Bedbuyer review flags; on a 25–31cm foam bed that makes rotating it a two-person wrestle. Larger sizes of the Koala Mattress arrive in two boxes and need two people to set up. And Tom’s Guide notes the cover isn’t machine-washable, so a good mattress protector is worth adding from day one.

Koala mattress firmness: firmer than you think

The most common complaint about Koala, in both expert and owner reviews, is that it feels firmer than expected. The data backs that up. Bedbuyer’s panel rated the standard Koala Mattress at 7.5 out of 10 on its medium-firm side and 8.5 on its firm side — the firm side is genuinely hard. ProductReview’s summary of 1,564 owner reviews lists inconsistent firmness as a top complaint, with some owners finding it very hard and others feeling the firm side didn’t support a heavier body well.

Here is how to read that for your body. Clinical research is useful but broad: the Kovacs randomised trial found medium-firm mattresses improved chronic low-back pain more than firm ones, and Radwan and colleagues’ systematic review concluded that medium-firm and self-adjusted surfaces were best for comfort and spinal alignment. That points most people towards the 5–7 band on the dial, not the 8.5 end.

  • Back sleepers of average weight: the standard Koala on its medium-firm side (7.5), or the Plus on firm (7).
  • Stomach sleepers: the standard Koala, flipped to firm if your hips sink. This is where the 8.5 side earns its place.
  • Side sleepers: skip the standard Koala. The Plus or Polar+ medium-firm side (6.5) or the Luxe (5) will be kinder to shoulders and hips.
  • Lighter sleepers: every Koala will feel firmer to you than the numbers suggest, because you don’t sink far enough to reach the softer layers. The Luxe is the safe choice.
  • Heavier sleepers (over about 100kg): Bedbuyer suggests an innerspring for you instead of the standard Koala. We agree; see best mattress for heavy people.

If you are unsure where you land, our mattress firmness guide walks through the scale, and the 120-night trial gives you time to flip the comfort layer and try both sides properly. Give each side at least two weeks: your body takes a while to adjust to any new mattress, and a firm-feeling foam bed usually softens slightly over the first month.

What Australian reviewers say

Koala gets less independent lab testing than the big American brands — RTINGS, for instance, doesn’t test it — so the Australian evidence comes from review panels and survey data. Here is where each one lands.

  • CHOICE has lab-tested several Koalas, including the SE, the Plus and the discontinued Calm As, on support for larger and petite sleepers, sagging resistance, stability and breathability. The scores are members-only, so we can’t quote them. Its separate owner survey is public, and we chart it below.
  • Bedbuyer reviews every model with a panel and publishes scores: SE (now sold as the OG) 3.9, Koala Mattress 4.0, Plus 4.2, Polar+ 4.2 and Luxe 4.3 out of 5. Its verdict on the standard model: “respectable comfort and support within a clean and modern all-foam design.”
  • Tom’s Guide sums up the Koala Mattress as adjustable comfort on a budget, and flags the non-washable cover and missing handles.
  • Better Homes and Gardens ranks the range by role rather than score: the Plus as best all-rounder, the Luxe for cloud-like luxury, the Polar+ for hot sleepers, the Koala Mattress for simplicity and the SE for value.
  • Finder found the beds well priced with good support, but weak at the edges and wasteful on packaging, and called the flippable layer a gimmick.

The CHOICE survey is the most useful number here because it measures what matters after the trial ends: does the mattress hold up? Koala scored 86% for reliability and 84% for satisfaction from 86 owners, ranking sixth of ten on reliability and fifth on satisfaction. That puts it clearly above the traditional showroom brands — Sealy at 78%, Sleepmaker at 72%, A.H. Beard/King Koil at 70% — and level with the other bed-in-a-box names. CHOICE notes that gaps under seven points aren’t statistically significant, so Koala, Sleeping Duck (88%) and Emma (88%) are effectively tied, with Ecosa (92%) and Tempur (93%) a step ahead.

Put together, the expert view is consistent: Koala makes competent, well-built foam mattresses with excellent motion isolation, merely average edge support, and no spring-style bounce. Nobody calls any Koala the best mattress in Australia, and nobody calls it bad. It is a dependable middle-of-the-market choice with unusually good adjustability for the money.

Koala mattress reviews from owners

Owner reviews of Koala tell two very different stories depending on where you look, and it is worth understanding why before you trust either.

On ProductReview.com.au, the Koala Mattress listing averages 4.8 from 1,564 reviews, 97% positive. Owners most often praise relief from back, hip and neck pain, low motion transfer between partners, the flippable layer, and fast delivery with easy setup. That is a big, product-specific sample. The caution is that Koala is a verified brand on the site, and on the Koala Plus listing we checked, many reviews carry ProductReview’s “Fair Incentive” tag, meaning the reviewer received something for writing it. Incentivised reviews aren’t fake, but they skew positive.

On Trustpilot Australia, Koala scores just 3.2 from 63 reviews, and the distribution is starkly polarised: 46% five-star, 35% one-star, and almost nothing in the middle. Trustpilot’s page is brand-wide, so it mixes mattress buyers with sofa and furniture orders, and its themes lean towards service: delivery errors, slow support and sagging products on the negative side, comfort and quick delivery on the positive. Trustpilot also reports that Koala has replied to only 28% of negative reviews. One recent reviewer wrote: “Worst company I ever had to deal with. If I could give 0 stars, I would.”

The long-term complaints are the ones to weigh most. ProductReview’s summary lists sagging or loss of support after roughly four to seven years, a chemical smell that lingers for days or longer after unboxing, and mixed experiences with warranty claims. One owner put it bluntly: “Mattress is rubbish after 4 years.” Four to seven years is not unusual for a foam mattress at this price, but it is shorter than the ten-year warranty implies — warranties cover defined defects, not gradual softening. Our mattress lifespan guide explains what lasts longest.

Koala OG, Plus, Polar+ and Luxe: which upgrade is worth it?

Koala OG, formerly sold as the SE (A$950 queen). Koala now sells its A$950 entry tier as the OG — medium, 5cm of Kloudcell, three support zones — and calls it its best seller. The independent reviews below were written under the SE name. The entry model is 24cm tall with a fixed quilted top, a comfort layer of bamboo-charcoal foam and Kloudcell, and a three-zone support core. Bedbuyer rated it 6.5 for firmness and 3.9 out of 5 overall, calling it “a good value mattress that has plenty of appeal,” and it is light at about 30.7kg for a queen. CHOICE lists the queen at 22.5cm and 26kg in its own measurements, so expect a slim profile. The catches: soft edges, a strong new-product smell, and no flipping. It’s our pick for a teenager’s king single or a guest room, and BHG names it the value choice. Bedbuyer doesn’t recommend it for adjustable bases.

Koala Plus (A$1,650 queen RRP). Koala describes the Plus as medium, flippable to firm, with an adjustable 8cm Cooling Kloudcell layer and five zones. The Plus is 28cm tall and adds a 2cm zip-off seasonal topper on top of a flippable Kloudcell layer and a five-zone base. Bedbuyer scored it 4.2 and measured it softer than the standard Koala, at 6.5 and 7 — though its panel felt both sides were close. BHG calls it the best all-rounder in the range. For side and combination sleepers it is the Koala we’d buy: it keeps the motion isolation, is softer at the shoulder, and the topper lets you tune for summer and winter. Its ProductReview King Single listing averages 4.9, though that sample is small and incentive-heavy.

Koala Polar+ (A$1,990 queen RRP). Same 28cm height and 6.5–7 firmness as the Plus, with cooling gel and what Koala calls PolarBands in an 8cm flippable comfort layer, plus a reversible topper with a cool CoolThread side and a warm cotton side. Bedbuyer scored it 4.2 and called it “a decent, relatively firm mattress that should suit a wide range of sleepers.” It is only sold in queen and king, and on 27 October 2026 it appeared only in a footnote on Koala’s site rather than in the main lineup — check it is still offered before planning around it. The A$340 premium over the Plus only makes sense if you sleep hot; all-foam beds trap more heat than hybrids, and if heat is your biggest problem a spring mattress may be the better fix. See best mattress for hot sleepers.

Koala Luxe (A$2,390 queen RRP). Koala lists it as plush, with seven zones, a 9cm Copper Kloudcell layer and a cashmere-blend top. The flagship is 31cm tall with an extra-plush quilted topper, a 9cm Kloudcell layer and a seven-zone high-density core, all foam. Bedbuyer gives it the highest score in the range at 4.3, rated it a medium 5 out of 10, and called its build quality excellent. It is the softest and most luxurious Koala, and the best one for lighter side sleepers. Two warnings: Bedbuyer doesn’t recommend it on an adjustable base, and at its RRP it costs more than a Sleeping Duck Mach II — so buy it on sale or not at all.

Koala Calm As and Soul Mate: what happened to them?

Many people still search for the Koala Calm As and Koala Soul Mate, so here is the history. In 2021, Koala retired its original 2015 mattress and split the range into three: the New (or OG) Koala, the Calm As and the Soul Mate, according to Finder. Finder also reports that the new models moved production from Australia to China, which Wikipedia notes was controversial at the time.

The Calm As has since been discontinued. CHOICE now marks it as a discontinued model, ProductReview lists it as discontinued, and Bedbuyer says it was replaced by the Koala Plus — the closest current equivalent, with a similar flippable layer and seasonal topper. The Soul Mate, which Finder found firm at first before softening after about two months, no longer appears in the current lineup in BHG’s 2026 guide or Bedbuyer’s Koala reviews. Its premium slot is now filled by the Koala Luxe.

If you are buying second-hand or reading an older review, check the model year carefully. A 2021–2023 Calm As or Soul Mate review describes a different mattress from anything Koala sells today, even when the names sound similar.

Koala trial and return, warranty and delivery

Every current Koala mattress comes with a 120-day trial with a full refund on returns, and a warranty of up to 10 years covering manufacturing and material defects, per Koala’s site on 27 October 2026, Bedbuyer’s reviews and CHOICE’s listings. That trial is longer than Sleeping Duck’s and Ecosa’s 100 nights, though shorter than Emma’s 150. Delivery is free Australia-wide, and Koala offers same-day delivery in metro areas if you order by 3pm on a weekday. Returned mattresses go to Koala Second Home, to charity, or are recycled into carpet underlay, the brand says.

A few practical points before you lean on that trial. First, buy direct if the trial matters to you. Koala has been listed on Amazon.com.au — BHG found the Koala Mattress queen listed there at A$1,290, slightly above Koala’s own A$1,249 RRP, though we found no Koala queen listing there on 27 October 2026 — and trial and warranty terms are usually only guaranteed through the brand’s own store, so check the listing’s seller and terms. Second, read Koala’s current return conditions on its site before ordering; we couldn’t verify whether there is a minimum number of nights before you can return. Third, keep a mattress protector on it from night one: warranties commonly exclude stained mattresses, and Koala’s covers aren’t machine-washable.

On the warranty itself, remember what owners report. A ten-year defect warranty doesn’t cover the gradual softening that ProductReview owners describe after four to seven years, and some owners describe mixed warranty-claim experiences. Plan for the comfort to fade well before the warranty runs out, and treat any year past the owner-reported four-to-seven-year mark as a bonus.

Koala vs Sleeping Duck vs Ecosa

These are the three Australian mattress-in-a-box brands most shoppers shortlist, and they are genuinely different beds. Our Australian buying guide ranks all five local picks; here is the head-to-head that matters for Koala.

Koala vs Sleeping Duck: the Sleeping Duck Mach II is the better mattress and the better company on paper — a hybrid with springs, configurable comfort layers on each side of the bed, stronger edges, and the best Trustpilot record in Australia (4.5 from 759 reviews). Tom’s Guide AU names it best overall. The Koala wins on price (A$400 less at RRP), on motion isolation thanks to its all-foam build, and on trial length (120 nights vs 100). If your budget stretches and you sleep hot or sit on the edge of the bed, buy the Sleeping Duck. If you share with a restless sleeper and want to spend less, the Koala is the smarter buy.

Koala vs Ecosa: the Ecosa Pure is a flippable latex-and-spring hybrid with a 15-year warranty and the best CHOICE reliability score of the three (92%). It will feel bouncier and sleep cooler than any Koala, and latex tends to outlast polyurethane foam. Its weaknesses are weight, a firm feel at first, and a weak 2.8 Trustpilot score. Choose Ecosa if durability and bounce matter most; choose Koala if you want the quiet, still feel of foam and a lighter mattress to move.

For a deeper explainer on why these beds feel so different, read our memory foam vs hybrid guide.

Who should buy which Koala

The matrix below turns everything above into a quick decision. Green means it’s the Koala we’d pick for you; yellow means it works; pink means look elsewhere in the range.

The pattern is simple. Back and stomach sleepers should buy the standard Koala Mattress — it is the cheapest flippable model and the firmest, which is what those positions need. Side sleepers should step up to the Plus, or the Luxe if they are light or love a plush feel. Hot sleepers get the Polar+, with the caveat that a hybrid may help more. Couples are well served by any Koala, because motion isolation is the brand’s one universal strength; our best mattress for couples guide shows how Koala compares with global brands. And parents furnishing a child’s or teenager’s room should look at the OG (the former SE) in king single.

Who should skip Koala

Koala is a good brand with clear limits. We’d steer you elsewhere if:

  • You weigh over about 100kg. Bedbuyer suggests an innerspring instead of the standard Koala, and owners report the firm side losing support under heavier bodies. A zoned hybrid like the Origin Hybrid or Sleeping Duck Mach II is a safer bet.
  • You sit on the edge of the bed a lot. Every reviewer flags soft edges, especially on the base models.
  • You like bounce. Foam is slow to respond, so changing position takes more effort. Ecosa’s latex and springs feel far livelier.
  • You want a mattress to last a decade. Owner reports of sagging after four to seven years suggest you won’t get one from any polyurethane-foam bed at this price.
  • You are sensitive to smells. Off-gassing is a recurring complaint for both the entry model (reviewed as the SE, now the OG) and the standard Koala; plan to air the room for a few days.

Everyone else — especially couples, back sleepers and anyone who wants to adjust firmness after delivery — will find a Koala that fits. Start with the standard Koala Mattress on sale, and step up to the Plus only if you sleep on your side. And if you want to see Koala against the full Australian field, head back to our best mattress Australia rankings.

Koala mattress FAQ

Is the Koala mattress good?

Yes, for the right sleeper. The standard Koala Mattress scored 4 out of 5 at Bedbuyer, Koala scores 86% for reliability in CHOICE’s owner survey, and it isolates motion very well. It is firmer than many expect (7.5 and 8.5 out of 10 at Bedbuyer), has soft edges and no bounce, so side sleepers and people over about 100kg should look at the Koala Plus, Luxe or a hybrid instead.

How firm is the Koala mattress?

Bedbuyer’s panel rated the standard Koala Mattress at 7.5 out of 10 on its medium-firm side and 8.5 on its firm side. The Koala Plus and Polar+ measured 6.5 and 7, the entry model (tested as the SE, now sold as the OG) 6.5 and the Luxe a medium 5. You can flip the comfort layer on the Koala, Plus and Polar+ to switch sides.

What is the difference between the Koala Mattress and Koala Plus?

The Plus is taller (28cm vs 25cm), softer (6.5–7 vs 7.5–8.5 at Bedbuyer), adds a 2cm zip-off seasonal topper and a five-zone base instead of three zones, and costs A$1,650 vs A$1,249 for a queen at RRP. Back and stomach sleepers should buy the Koala; side sleepers the Plus.

Is the Koala Calm As still available?

No. CHOICE and ProductReview list the Koala Calm As as discontinued, and Bedbuyer says it was replaced by the Koala Plus. The Soul Mate also no longer appears in Koala’s 2026 lineup; the Koala Luxe now fills the premium slot.

How long is the Koala trial and warranty?

Every current Koala mattress has a 120-day trial with a full refund on returns and a warranty of up to 10 years covering manufacturing and material defects. Buy direct from Koala to be sure the trial applies, and check the current return conditions before ordering.

Koala vs Sleeping Duck: which is better?

The Sleeping Duck Mach II is our overall Australian pick: it is a hybrid with adjustable layers per side, better edges and a 4.5 Trustpilot score. The Koala costs about A$400 less at RRP, isolates motion better and has a longer 120-night trial. Pick Sleeping Duck for cooling and edges, Koala for value and a still, quiet bed.

How long does a Koala mattress last?

ProductReview owners commonly report sagging or loss of support after four to seven years, which is typical of polyurethane foam at this price. The 10-year warranty covers defects, not gradual softening.

Can you buy a Koala mattress on Amazon Australia?

Sometimes. Koala has been listed on Amazon.com.au, but availability varies: we found no Koala queen listing there on 27 October 2026. BHG found the Koala Mattress queen there at A$1,290, slightly above Koala’s own A$1,249 RRP. Buying direct is usually cheaper during sales and guarantees the 120-night trial.

Sources

Every number on this page traces back to one of these. Prices and ratings checked October 2026. See how we rate.

  1. 1.Koala AU – lineup, prices, trial, delivery & warranty (checked 27 Oct 2026)Brand
  2. 2.Tom’s Guide – KoalaExpert review
  3. 3.CHOICE – Most reliable mattress brands (owner survey)Data
  4. 4.Bedbuyer – KoalaExpert review
  5. 5.Better Homes and Gardens – Best Koala mattress (Mar 2026 sale prices, Amazon AU listing)Expert review
  6. 6.TrustpilotOwner reviews
  7. 7.Bedbuyer – Koala SE reviewExpert review
  8. 8.Bedbuyer – Koala Plus reviewExpert review
  9. 9.Bedbuyer – Koala Polar+ reviewExpert review
  10. 10.Bedbuyer – Koala Luxe reviewExpert review
  11. 11.CHOICE – Koala SE (lab-tested listing)Lab test
  12. 12.CHOICE – Koala Plus (lab-tested listing)Lab test
  13. 13.CHOICE – Koala Calm As (discontinued)Lab test
  14. 14.Finder – Koala mattress review (OG vs Calm As vs Soul Mate)Expert review
  15. 15.ProductReview.com.au – Koala MattressOwner reviews
  16. 16.ProductReview.com.au – Koala Plus (King Single)Owner reviews
  17. 17.Wikipedia – Koala (company)Data
  18. 18.Tom’s Guide AU – Best mattressExpert review
  19. 19.Ecosa AU – range, RRP & member prices, 100-night trial (checked 27 Oct 2026)Brand
  20. 20.Kovacs FM et al. Mattress firmness & chronic low-back pain, randomised trial. Lancet 2003;362:1599-604Study
  21. 21.Radwan A et al. Mattress designs, sleep quality, pain & spinal alignment: systematic review. Sleep Health 2015Study

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