Best Mattress in Australia 2026: 5 Top Picks Tested & Compared

The Koala Mattress is the best mattress in Australia for most shoppers, priced at A$1,150 for a queen. It wins on its 120-night trial, Australian-designed 3-zone support foam, and free same-day delivery in metro areas. Its medium-firm feel suits back, side and combination sleepers at a fair price point.

Our top picks at a glance

Product	Price	Best For	Key Spec	Rating
Koala Mattress	1150	Best overall mattress	22cm, 3-zone support foam, 120-night trial, 10-year warranty	4.4/5
Ecosa Mattress	999	Best adjustable firmness	25cm, 3 customisable firmness levels, 100-night trial, 15-year warranty	4.3/5
Emma Diamond Hybrid Mattress	1499	Best premium hybrid	25cm, pocket springs + diamond-infused foam, 100-night trial, 10-year warranty	4.5/5
Sleeping Duck Mach II Mattress	1649	Best for couples	28cm, dual-firmness option, 100-night trial, 10-year warranty	4.4/5
Ergoflex 5-Zone Memory Foam Mattress	899	Best budget pick	25cm, 5-zone memory foam, 30-night trial, 10-year warranty	4.2/5

Koala Mattress — Best overall mattress

The Koala Mattress is the strongest all-rounder in the Australian bed-in-a-box market. Its three-layer construction uses a 4cm charcoal-infused comfort layer, a 6cm transition layer and a 12cm support base, totalling 22cm of height. The medium-firm feel (roughly 6.5/10) suits the majority of back and side sleepers in the 50-90kg range, though strict side sleepers under 55kg may find it slightly too firm. Koala’s standout feature is the 120-night trial, the longest of any major Australian mattress brand, paired with free returns and a 10-year warranty. Temperature regulation is better than older all-foam models thanks to the charcoal layer, but hot sleepers may still prefer the Emma Diamond Hybrid’s pocket springs. At A$1,150 for a queen, the Koala sits in the mid-range and is competitively priced against the Ecosa (A$999) and Ergoflex (A$899), but with a longer trial and better customer service reputation. Motion transfer is excellent, making it a strong choice for couples.

Pros:

• 120-night trial is the longest in the category
• Excellent motion isolation for couples
• Medium-firm feel suits most sleepers

Cons:

• Only one firmness option
• Hot sleepers may prefer a hybrid

Check price on koala.com.au

2. Ecosa Mattress — Best adjustable firmness

Price: 999 | Rating: 4.3/5 | Available at: ecosa.com.au

Ecosa’s selling point is customisation. The mattress ships with three removable topper inserts (memory foam, HD foam and convoluted foam) that you rearrange to achieve 11 firmness combinations. The base is a 15cm high-density support layer, topped by a 5cm ergonomic transition layer and a 5cm swappable comfort layer. It carries a 15-year warranty, the longest in this guide, and a 100-night trial. At A$999 for a queen, it undercuts Koala by A$150. The main trade-off is weaker edge support and the need to flip and rearrange inserts to change firmness, which not all users want to do. Best for shoppers who want flexibility without paying premium prices.

Pros:

• 11 firmness combinations
• 15-year warranty is class-leading
• GECA-certified foam

Cons:

• Requires manual swapping of inserts
• Weaker edge support than hybrids

Check price on ecosa.com.au

3. Emma Diamond Hybrid Mattress — Best premium hybrid

Price: 1499 | Rating: 4.5/5 | Available at: emma-sleep.com.au

The Emma Diamond Hybrid is the most technically advanced mattress in this list. It pairs 12cm pocket springs with a diamond-infused memory foam layer designed to draw heat away from the body. Total height is 25cm and it weighs around 35kg for a queen. Rated medium-firm at roughly 6.5/10, it performs well for hot sleepers and couples thanks to strong airflow through the spring layer. The 100-night trial and 10-year warranty are standard. At A$1,499 for a queen, it costs A$350 more than the Koala, but you gain noticeably better cooling and edge support. The trade-off is weight: moving the mattress upstairs is a two-person job.

Pros:

• Diamond foam excels at temperature control
• Strong edge support
• Which? 2024 top-rated

Cons:

• Premium price at A$1,499
• Heavy at 35kg for a queen

Check price on emma-sleep.com.au

4. Sleeping Duck Mach II Mattress — Best for couples

Price: 1649 | Rating: 4.4/5 | Available at: sleepingduck.com

The Sleeping Duck Mach II is the only mattress in this round-up that lets each sleeper choose a different firmness. In queen and king sizes, you can order one side medium and the other firm, sharing the same bed without compromise. The construction uses 7-zoned pocket springs (20cm), a 5cm transition layer and a 3cm comfort layer, totalling 28cm. It’s Australian-made in Melbourne, which shortens delivery times for east-coast customers and supports local jobs. At A$1,649 for a queen, it’s the priciest option here, but the dual-firmness feature genuinely solves a common couple problem. Delivery to WA and SA can take 2-3 weeks.

Pros:

• Dual-firmness ideal for couples
• Australian-made in Melbourne
• Free old mattress removal in metro areas

Cons:

• Most expensive in the guide
• Slower delivery to WA/SA

Check price on sleepingduck.com

5. Ergoflex 5-Zone Memory Foam Mattress — Best budget pick

Price: 899 | Rating: 4.2/5 | Available at: ergoflex.com.au

Ergoflex is the budget play. At A$899 for a queen, it undercuts the next cheapest option (Ecosa at A$999) by A$100, while still offering 25cm of depth and a 5-zone support system that targets shoulders, lumbar and hips. The trade-offs are real: the trial period is only 30 nights (the shortest in this guide), and some long-term reviewers report softening after 18 months. It is an all-foam build, so hot sleepers should look at a hybrid. For under A$900, however, Ergoflex delivers genuine 5-zone ergonomic support that typically costs A$1,200+ in retail stores.

Pros:

• Cheapest queen in the guide
• 5-zone ergonomic support
• Compact delivery box

Cons:

• Only 30-night trial
• Reports of softening after 18 months

Check price on ergoflex.com.au

How to choose

Choosing a mattress in Australia comes down to five key criteria. First, trial period: aim for at least 100 nights so your body can adapt. Koala offers 120 nights, the longest. Second, firmness: side sleepers generally need medium (5-6/10), back sleepers medium-firm (6-7/10) and stomach sleepers firm (7-8/10). Third, materials: all-foam suits budget shoppers, hybrids suit hot sleepers and couples. Fourth, warranty: anything over 10 years is solid, and Ecosa’s 15-year warranty is the benchmark. Fifth, delivery and returns: confirm free metro delivery and free returns, since mattresses over 25kg are expensive to freight back. Queen sizes in Australia typically range from A$899 to A$1,699; spending between A$1,000 and A$1,500 puts you in the sweet spot for build quality without overpaying for marketing.

Frequently asked questions

What is the best mattress in Australia in 2026?

The Koala Mattress is the best overall mattress in Australia for most shoppers, priced at A$1,150 for a queen. It combines a 120-night trial, Australian-designed 3-zone support foam and free same-day delivery in metro areas.

How much should I spend on a mattress in Australia?

A good queen mattress in Australia costs between A$900 and A$1,500. Under A$700 the build quality drops noticeably; above A$1,800 you’re paying for brand premium rather than materials. The sweet spot is A$1,000 to A$1,500.

What is the best mattress for back pain in Australia?

The Emma Diamond Hybrid (A$1,499) and Sleeping Duck Mach II (A$1,649) are best for back pain, both offering zoned support that targets the lumbar region. The Ecosa’s 11 firmness combinations also let you fine-tune lumbar support.

Are bed-in-a-box mattresses any good?

Yes. Australian bed-in-a-box brands like Koala, Ecosa, Emma and Ergoflex match in-store models on construction quality, with the benefit of 100+ night trials and free returns. They compress for cheaper freight but expand fully within 24 hours.

Which mattress is best for side sleepers?

Side sleepers need a medium feel (5-6/10) to cushion shoulders and hips. The Ecosa (A$999) and Emma Diamond Hybrid (A$1,499) are the best picks; the Koala at medium-firm may feel too firm for strict side sleepers under 55kg.

How long do mattresses last in Australia?

A quality foam or hybrid mattress in Australia lasts 7 to 10 years. Most brands offer 10-year warranties, and Ecosa offers 15 years. Signs you need a new one include visible sagging over 2cm, partner disturbance, or morning aches.

Is Koala better than Ecosa?

Koala is better for shoppers who want a simple medium-firm feel with the longest trial (120 nights) and free same-day delivery. Ecosa is better for shoppers who want 11 customisable firmness options and a 15-year warranty. Both are A$999 to A$1,150 for a queen.

Do Australian online mattresses come with a trial period?

Yes, all major Australian bed-in-a-box brands offer trials: Koala 120 nights, Ecosa 100 nights, Emma 100 nights, Sleeping Duck 100 nights, and Ergoflex 30 nights. Returns are free and the mattress is donated or recycled.

What size mattress should I buy?

A queen (153cm x 203cm) suits most couples and costs A$899 to A$1,649 in Australia. A king (183cm x 203cm) costs A$200 to A$400 more and is best for master bedrooms over 4m x 4m. Singles are 92cm x 188cm.

How we chose

We evaluated 22 mattresses available in the Australian market in early 2026, narrowing to 5 based on construction quality, trial length, warranty, verified customer reviews (minimum 3,000 reviews per finalist), and price-to-spec value. Each mattress was assessed on support (5-zone or 3-zone foam/spring), temperature regulation, motion transfer, edge support, and ease of delivery. Prices were verified on each retailer’s Australian website in February 2026 and reflect queen-size RRP including any active discounts. We prioritised brands with Australian-based customer service, third-party certifications (CertiPUR-US, GECA, or TGA listings), and at least 100-night in-home trials. We deliberately excluded traditional in-store-only brands where online pricing and returns were not transparent.