Koala Plus Review 2026: Worth $840 for Hot Sleepers?

The Koala Plus sits at the top of Koala’s mattress range as the brand’s cooling and adjustable option, and it arrives with a headline claim worth taking seriously: it sleeps 13% cooler than leading online brands. Priced at $840 on sale from a regular $1,050, it also carries a 4.8 star rating across 1,470 public reviews, a 120 day trial and a warranty of up to 10 years. This page looks at what the specifications actually say, who the mattress is built for, and where the trade-offs sit.

We also weigh this mattress against its rivals in our best cooling mattresses.

Our pick

Saatva Classicthe innerspring alternative if you want a longer trial and a lifetime warranty

• 365-night home trial
• Free white-glove delivery and old-mattress removal
• Lifetime warranty
• Three comfort levels and two mattress heights

Check today’s Saatva price →

Who is the Koala Plus for?

The Koala Plus is built for sleepers who run warm and want a mattress that can change with the seasons. Its two-sided comfort layer and two different ticking fabrics mean you unzip and flip to switch between a soft organic cotton winter side and a crisp CoolThread summer side. That adaptability, combined with the cooling foam stack, makes it a natural fit for Australian bedrooms where summer and winter demands are very different.

It also suits shoppers who want a medium-firm to firm feel without buying two mattresses. The dual-comfort Kloudcell layer is described as offering medium-firm or firm depending on which way up it sits, so one purchase covers two firmness preferences. At 28 cm tall and 21 kg for the Single, it is a substantial foam mattress that still ships in a box, which keeps delivery simple in metro areas.

Buyers who should look elsewhere include those who want an innerspring feel, a trial longer than 120 nights, or a warranty that runs for the life of the mattress rather than up to 10 years. Those points are covered further down this page.

What does the Koala Plus actually contain?

The construction story is foam-led and clearly specified. The comfort layer uses Kloudcell foam, and Koala states the Plus carries 60% more of it than the SE Mattress, which is where the cushioned feel comes from. Cooling is handled by CoolThread fabric wicking moisture alongside the Kloudcell foam balancing temperature. The base is polyurethane foam, and the foams are CertiPUR-US certified, meaning they are made without formaldehyde, ozone depleters, heavy metals and flame retardants, and promote indoor air quality through low volatile organic compounds.

How does the cooling claim hold up?

The headline is that the Koala Plus sleeps 13% cooler than leading online brands, and it is an Innovation Award Winner on that basis. The mechanism Koala describes is straightforward: CoolThread wicks moisture on the summer side while Kloudcell foam works on temperature balance underneath. For hot sleepers, the practical advantage is that the cooling is not a single treatment on one surface. It runs through both the fabric and the foam layer, and the summer side is the one you flip to when the weather turns.

The seasonal flip matters more than it sounds. Many cooling mattresses stay the same all year, which can leave them feeling cold in winter. The Koala Plus gives you an organic cotton side for chilly nights and a CoolThread side for warm weather, so the cooling feature is something you control rather than something you live with. That is a genuine design difference from a fixed-cover mattress.

How does the dual-comfort layer change the feel?

The Koala Plus uses a double-sided Kloudcell foam layer that offers medium-firm or firm, depending on orientation. Unzip the cover, flip the layer, and the mattress shifts between the two settings. This is the feature that makes the Plus genuinely adjustable rather than just rebranded: you are not choosing a firmness at checkout and living with it, you are choosing it every season or whenever your preference changes.

Combined with the 60% extra Kloudcell foam over the SE, the result is a cushioned surface with real depth to it. Shoppers who know they like a medium-firm mattress but worry about committing will find this the safest way to buy, because the firmness question has two answers built into one product.

What do you pay, and what comes with it?

The Koala Plus is listed at a sale price of $840, down from a regular price of $1,050, a saving of $210. That price is for the Single, and the range runs up through King Single, Double, Queen, King and Super King. Payment options include AfterPay in four interest-free payments, ZipPay, and PayPal Pay in 4 on eligible transactions under $2,000 AUD.

What is bundled in: a 120 day trial, fast and free delivery on mattresses, and a warranty of up to 10 years. Koala offers same day delivery on furniture and mattress orders in Sydney, Melbourne, Brisbane, Perth and Adelaide for in-stock products, with premium delivery including assembly and rubbish removal available to Sydney, Melbourne and Brisbane metro customers on select items at additional cost. The Single arrives boxed at W100 x D43 x H43 cm with a boxed weight of 23.2 kg.

Who should not buy the Koala Plus?

Three groups should think carefully. First, anyone who wants a trial measured in months rather than weeks: 120 days is generous by foam mattress standards, but it is shorter than the 365-night trial Saatva offers on the Classic. Second, shoppers who want a warranty that lasts as long as they own the mattress, since the Koala Plus warranty runs up to 10 years. Third, sleepers who prefer an innerspring feel with coils and a pillow top, because the Koala Plus is a foam mattress through and through.

There is also the price question. At $840 on sale for a Single, the Plus sits at the premium end of the boxed foam market. Buyers who only want basic comfort without the seasonal flip or the cooling stack may find the standard Koala range better aligned with their budget. The Plus earns its price specifically through the cooling claim, the extra Kloudcell foam and the reversible firmness, and those are the features you are paying for.

How does the Koala Plus compare with the Saatva Classic?

These are two very different mattresses aimed at overlapping buyers. The table below sets them side by side on the terms that matter most.

Who should buy the Koala Plus: Australian shoppers who want a boxed foam mattress delivered fast, who sleep hot and want a summer side to flip to, and who value being able to switch between medium-firm and firm without replacing the mattress. It is also the better fit for anyone who wants to pay in four interest-free instalments through AfterPay on an Australian retail price.

Who should buy the Saatva Classic: Shoppers who want a full year to decide rather than 120 nights, a warranty that runs for the life of the mattress rather than up to 10 years, and a traditional innerspring feel with a 3 inch Euro pillow top. The Classic offers three named comfort levels, two heights, and free white-glove delivery that includes in-room setup and removal of your old mattress at no extra cost. It is chiropractor approved with Lumbar Zone technology for spinal alignment, and it carries both CertiPUR-US and GREENGUARD Gold certifications plus endorsement from the American Chiropractic Association.

Verdict: The Koala Plus wins on cooling adaptability and delivery speed in Australia. The Saatva Classic wins on trial length, warranty, and service. If your priority is a mattress that handles Australian summers and arrives in a box this week, take the Koala Plus. If you want the longest possible trial and a lifetime warranty with full setup service, the Classic is the stronger buy.

World Sleep Almanac score: 8.2/10

The World Sleep Almanac editorial score is our own rating, written from the criteria listed below rather than from a physical test. Each criterion is scored on what the brand publishes, and the final number is the editorial weighting of those criteria.

• Materials and construction: 9/10. CertiPUR-US certified foams, a dual-sided Kloudcell layer, and two distinct ticking fabrics for summer and winter give the Plus real build substance.
• Trial and returns: 7/10. A 120 day trial with a full refund of the purchase price is solid, though shorter than the year-long trials some rivals offer.
• Warranty: 7/10. Up to 10 years is respectable for a boxed foam mattress, and falls short of a lifetime warranty.
• Price at equivalent size: 8/10. $840 on sale from $1,050 for a Single, with interest-free payment options, sits fairly against premium boxed foam competitors.
• Public reviews: 9/10. A 4.8 out of 5 rating drawn from 1,470 reviews is a strong public signal.

Still comparing? Our Koala Snoozytime review is the natural next read.

Frequently asked questions

How long can I try the Koala Plus before deciding?

Koala gives you a 120 day trial on the mattress. If it does not suit you, the brand states it will give you a full refund of the purchase price. That is four months to judge the cooling side, the firmness flip, and the overall feel in your own bedroom.

What warranty comes with the Koala Plus?

The warranty runs up to 10 years, described by Koala as a world class warranty. It sits alongside the 120 day trial and free delivery on mattresses as the three core protections on the purchase.

Does the Koala Plus really sleep cooler?

Koala states the mattress sleeps 13% cooler than leading online brands, and it is an Innovation Award Winner on that basis. The cooling comes from CoolThread fabric wicking moisture on the summer side combined with Kloudcell foam balancing temperature underneath, so it works at both the surface and the foam layer.

Can I change the firmness of the Koala Plus?

Yes. The double-sided Kloudcell layer offers medium-firm or firm, and you switch between them by unzipping the cover and flipping the layer. The same unzip-and-flip action also switches you between the organic cotton winter side and the CoolThread summer side.

What sizes does the Koala Plus come in?

Single, King Single, Double, Queen, King and Super King. The Queen measures H28 cm x W153 cm x L203 cm, and the King measures H28 cm x W183 cm x L203 cm. The Single ships boxed at 23.2 kg with box dimensions of W100 x D43 x H43 cm.

Reviewed by the World Sleep Almanac editorial team. Updated 2026.