Koala vs Emma vs Eva vs Ecosa: Which Online Mattress Wins in Australia 2026?

Ecosa wins on warranty (15 years) and firmness flexibility (three swappable foam layers), Emma wins on cooling and consistent CHOICE comfort scores, Koala wins on edge support and metro delivery speed (4 hour Sydney/Melbourne/Brisbane/Adelaide/Perth), and Eva wins on baseline price plus hybrid spring feel. Pick Ecosa if you want the longest safety net, Emma if you sleep hot, Koala if you want it tonight, Eva if you want the most for the money.

Quick 4-way spec table

Brand	Queen RRP (Sep 2026)	King RRP	Trial	Warranty	Free metro delivery	Construction
Koala Mattress	$1,249	$1,499	120 nights	10 years	Yes (4hr metro option)	2-in-1 flippable foam (medium + firm)
Emma Original	$1,299	$1,549	100 nights	10 years	Yes	3-layer memory foam with Airgocell top
Eva Comfort Classic	$1,199	$1,449	120 nights (21 min)	10 years	Yes	Hybrid foam + 5-zone pocket spring
Ecosa Mattress	$1,240	$1,490	100 nights	15 years	Yes	3 rearrangeable foam layers (adjustable firmness)

Table shows current advertised RRPs as of September 2026 across the four brand sites; each brand runs promo campaigns most months that discount 20 to 50 percent off these figures.

Meet ShopBack: the layer on top of any brand promo

ShopBack is a free cashback app used by more than 4 million Australians. When you click through to Koala, Ecosa or Eva via ShopBack (browser or app) and complete the purchase, cashback is credited to your ShopBack wallet on top of whatever discount code you use. On a queen mattress that means a real dollar layer above the sale price, credited automatically. New members can sign up here in about 30 seconds.

How we tested and scored

• Sample. Four bed-in-a-box brands with more than $30 million ARR in Australia. We pulled queen and king pricing from each brand's checkout twice weekly between 2026-06-01 and 2026-09-18, capturing 32 price points per brand.
• Trial windows. Verified against each brand's current returns policy page as of 2026-09-22.
• Comfort and reliability signals. Sourced from CHOICE's reliability rankings and comparison reviews.
• Exclusions. We excluded premium ranges (Koala SoulMate, Ecosa Pure, Emma Diamond, Eva Deep Sleep) to keep the comparison at the equivalent flagship tier.
• Limitations. We did not conduct our own lab-based support or bounce testing. Comfort remains preference-driven and no ranked list replaces a personal 30-night trial.
• Disclosures. ShopBack has affiliate partnerships with Koala, Ecosa and Eva. Emma is not currently a ShopBack partner. Author and editorial team have no financial interest in any of the four brands.

1. Koala Mattress, best if you want it in your bedroom tonight

Koala's flagship is a 2-in-1 flippable slab: medium comfort on one side, firm on the other, so a couple with mismatched preferences can literally rotate the mattress. It uses Koala's proprietary Kloudcell foam, which is more responsive than traditional memory foam. Queen sits at $1,249 RRP, and Koala offers 4-hour metro delivery in Sydney, Melbourne, Brisbane, Adelaide and Perth if you order before the daily cut-off, verified against the Koala checkout on 2026-09-18. Our editorial team tested this in August 2026 with a Sydney metro delivery slot, and the mattress arrived within the 4-hour window quoted at checkout.

Koala listed on the ASX on 31 March 2026 with a $68 million IPO (Wikipedia, Koala company), and founder Dany Milham returned as CEO in 2024. Roughly 96% of Koala mattresses stay with the customer past the 120-night trial (per Koala's most recent public disclosure), which lines up with CHOICE placing Koala in the top tier of reliable brands.

• Best for. Couples with different firmness preferences, metro shoppers who cannot wait for delivery.
• Watch out for. Slightly hotter sleep surface than Emma or Ecosa (Kloudcell retains more heat than gel-infused alternatives).
• Shop: Koala on ShopBack

2. Emma Original, best cooling and best CHOICE comfort scores

Emma is Australia's globally most-decorated mattress brand, with an Airgocell top layer specifically engineered to dissipate heat. Queen RRP is $1,299, and Emma runs sitewide 40 to 50 percent promotions roughly every six to eight weeks, pushing the checkout price to $700 to $780 during those windows. Emma is owned by German holding company Bettzeit, and its 3-zone pressure relief consistently earns top comfort scores in CHOICE mattress reviews for side sleepers.

Trial is 100 nights with a 30-night minimum before returns are accepted. Warranty is 10 years covering visible sags over 25mm. Delivery is free metro Australia within 3 to 5 business days.

• Best for. Hot sleepers, side sleepers, buyers who prioritise independent testing scores.
• Watch out for. Not currently a ShopBack partner, so no cashback layer. Wait for a 40 percent-plus sitewide sale to make it competitive on price.
• Browse: Emma product range at emma-sleep.com.au

3. Eva Comfort Classic, best hybrid feel at the lowest baseline

Eva is the only one of the four to use a hybrid construction at flagship tier: foam comfort layers over 5-zone pocket springs. That gives it a bouncier, more traditional mattress feel than the all-foam competitors, which matters if you are switching from an innerspring bed and do not want the "sinking" foam sensation. Queen RRP sits at $1,199, the lowest of the four, and Eva's standing promo typically pushes it to $999 or below.

Trial is 120 nights but requires 21 nights of use before you can return. Warranty is 10 years. Delivery is free metro Australia in 2 to 6 business days. Our team ordered an Eva queen on 2026-08-15 and the mattress arrived to a Melbourne inner-suburbs address in 4 business days at the quoted price.

• Best for. Innerspring converts who want spring bounce, budget-focused buyers.
• Watch out for. The 21-night minimum trial gate is the strictest of the four, and Eva has been slower than the others to introduce a premium tier.
• Compare: Eva on ShopBack

4. Ecosa Mattress, best warranty and best for uncertain firmness preferences

Ecosa's headline feature is unzippable, rearrangeable foam layers: you literally open the cover and swap the three internal layers to change between medium-soft, medium, and firm without buying a new mattress. Queen RRP is $1,240 and Ecosa is discounted more often than Koala, so in practice it is frequently the cheapest of the two (bedbuyer.com.au). Warranty is 15 years, longest of the four by a clear margin.

The Tencel cover is washable and waterproof, which is why Ecosa is a common pick for households with kids or pets. Trial is 100 nights with no minimum sleep-on requirement, and free metro delivery lands in 3 to 5 business days. CHOICE placed Ecosa in the top tier of reliable mattress brands (CHOICE reliability).

• Best for. Uncertain firmness preferences, families with kids or pets, buyers who want maximum long-term coverage.
• Watch out for. The three-layer swap sounds simple but the top zip is fiddly the first time, budget 20 minutes.
• Bundle: Ecosa on ShopBack

Which mattress wins for which buyer?

If you can only remember one line, remember this: Ecosa for coverage, Emma for cooling, Koala for delivery speed, Eva for price. Every other axis (edge support, motion isolation, off-gassing, cover feel) sits close enough across the four brands that a 30-night personal trial reveals more than any spec sheet.

Timing matters more than picking the "right" brand for most buyers. Black Friday and Boxing Day consistently produce the deepest online mattress discounts of the year (40 to 50 percent off across all four), while EOFY sits at 30 to 35 percent off and Click Frenzy caps at 25 percent. If your current mattress can wait 6 to 8 weeks, wait for the seasonal peak. Layer ShopBack cashback on top of the sale price where the brand is a partner.

Frequently asked questions

Which online mattress is cheapest at queen size in Australia 2026?

At full RRP the four sit close together (roughly $1,200 to $1,299 for a queen), but Eva tends to run the cheapest ongoing discount, typically landing around $999 to $1,050 after their standing sitewide promo. Emma sits next at about $1,050 to $1,150 during their frequent 40 to 50 percent sitewide campaigns. Ecosa and Koala usually cap their promos around 30 percent, so their queens land closer to $1,100 to $1,200. Use ShopBack to compare current mattress deals across all four before you check out, because a promo month can flip the ranking entirely.

Which brand gives the longest sleep trial?

Koala offers the longest at 120 nights. Ecosa gives 100 nights. Eva gives 120 nights but requires you to sleep on it for at least 21 nights before returning. Emma offers 100 nights with a 30 night minimum. If you are a hot sleeper or a side sleeper switching from firm to plush, the 120 night runway from Koala or Eva gives you two full menstrual and sleep cycles to judge, which sleep researchers cite as the point where the body stops adapting and starts revealing genuine long term comfort issues.

How long is the warranty on each brand?

Ecosa leads at 15 years. Emma and Eva both offer 10 years. Koala offers 10 years but limits the covered defects more tightly than the others. Warranties typically cover foam sag greater than 25mm and manufacturing defects, but they do not cover normal comfort preference changes. In practice, CHOICE reliability testing found Ecosa, Sleeping Duck, Emma and Koala all rank in the top tier of Australian brands, so warranty claims are rarely needed inside the first five years.

Do any of them include free delivery and old mattress removal?

All four ship free to metro Australian postcodes. Koala uniquely offers a 4 hour delivery window in Sydney, Melbourne, Brisbane, Adelaide and Perth metro if you order before the daily cut-off. Old mattress removal is not standard on any of the four but Koala and Ecosa both offer paid disposal add-ons at checkout, typically $65 to $99 depending on your state. Regional customers should budget an extra 3 to 7 business days on all four brands.

How do returns actually work if I don't like the mattress?

All four collect the mattress from your home at no charge, and all four now donate the returned unit to charity partners rather than repackaging it. Refunds are typically processed within 10 business days of collection. The catch is you must keep the mattress in usable condition (no stains, no pet damage) or the refund can be denied. Ecosa and Emma send a mattress protector in the box specifically to protect the trial period.

Which brand does CHOICE rate best?

CHOICE tests bed-in-a-box brands in the same independent European lab as retail mattresses. Their most recent reliability round placed Ecosa, Sleeping Duck, Emma and Koala all in the top tier of reliable mattress brands. Eva was not included in that specific reliability sweep. For overall comfort scoring across side, back and stomach sleepers, CHOICE consistently rates Ecosa and Emma slightly higher than Koala and Eva on foam contouring, though Koala scores highest on edge support.

Is Koala still Australian owned in 2026?

Yes. Koala was founded by Dany Milham and Mitch Taylor in November 2015, and after a period under private equity ownership the company listed on the ASX on 31 March 2026 with a $68 million IPO. Milham returned as CEO in 2024. Koala is designed and warehoused in Australia with manufacturing across Australia, China and Europe depending on the SKU. Emma is German-owned (Bettzeit), Ecosa is Australian-founded and privately held, and Eva is Australian-owned and privately held.

Which mattress is best for a hot sleeper?

Emma's Airgocell foam sleeps notably cooler than the other three, which is why it wins CHOICE side sleeper cooling scores year after year. Ecosa's Tencel cover is the second coolest thanks to bamboo-derived fibres. Koala's Kloudcell foam is more responsive but retains slightly more heat, and Eva sits in the middle. If cooling is a top-three priority, Emma is the safer default and can be paired with a bamboo mattress protector for another degree or two of surface cooling.

Should I buy during EOFY, Black Friday, or Boxing Day?

Black Friday and Boxing Day consistently produce the deepest online mattress discounts of the year across all four brands, typically 40 to 50 percent off RRP. EOFY (late June) usually sits at 30 to 35 percent off. Mid year and September events (Click Frenzy) tend to cap around 25 percent. If you can wait until late November or late December, that is the buying window. If you cannot wait, activate ShopBack cashback on top of whatever promo is running to add a bit more back.

How can ShopBack help me save more on any of these mattresses?

ShopBack is a free cashback platform. When you click through to Koala, Ecosa or Eva via the ShopBack site or browser extension and buy a mattress, cashback is added to your ShopBack wallet on top of any promo code the retailer is running. Because mattresses are high-ticket items ($800 to $2,500 range for queen and king), the dollar value of cashback is meaningful. Emma is not currently a ShopBack partner but the other three are. Activate ShopBack before you check out to lock in the cashback.

Ready to shop?

Pick the brand that fits your priority (Ecosa for warranty, Emma for cooling, Koala for delivery, Eva for value), wait for a seasonal sale if you can, and layer ShopBack cashback on top. Sign up to ShopBack in under a minute, activate before checkout, and pocket the cashback.

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This article is for general informational purposes only. Prices, promotional offers, warranty terms, trial windows and cashback rates change frequently; verify current details on each retailer's site before purchase. ShopBack earns a commission when readers make eligible purchases through our links, which supports our editorial team. This does not affect editorial rankings or product recommendations. Last reviewed 2026-09-24.