⚡ Quick Verdict
Koala wins for most Australians — better value, longer trial, simpler purchase.
Sleeping Duck is better for couples with different firmness needs, and hot sleepers wanting hybrid cooling.
Overview
Koala and Sleeping Duck are Australia's two most popular mattress brands. Both offer excellent quality and genuine Australian support. The choice comes down to one question: do you share a bed with someone who wants a different firmness?
At a Glance
Key Differences
| Feature | Koala | Sleeping Duck |
|---|---|---|
| Firmness | Single Medium — no adjustment | Adjustable per side — Soft to Firm |
| Construction | All-foam (Kloudcell open-cell) | Hybrid (foam + pocket springs) |
| Cooling | Good — open-cell foam | Better — hybrid pocket spring airflow |
| Motion isolation | Excellent | Good — hybrid transfers slightly more |
| Trial period | 120 nights — longest in AU | 100 nights |
| Price (Queen) | ~$1,050 AUD | ~$1,399 AUD |
Comfort & Feel
Both mattresses deliver strong comfort for most sleepers, but approach it differently. The Koala uses Foam construction with a Medium feel. The Sleeping Duck offers Hybrid construction with a Adjustable feel. For most Australian sleepers, both provide adequate pressure relief — where they differ is in feel and adaptability.
Cooling & Temperature
Between these two, Sleeping Duck wins on cooling. The pocket spring base creates natural airflow channels that all-foam mattresses simply cannot replicate. In Australia's summer heat, this is a real advantage.
For very hot sleepers, pairing either mattress with breathable linen or bamboo bedding makes a significant difference regardless of the mattress itself.
Price & Value in Australia
The Koala Original Mattress is priced at $1,050 AUD for a Queen. The Sleeping Duck Mach II comes in at $1,399 AUD. Both brands run major promotional events — EOFY, Black Friday, and Click Frenzy typically offer 15–40% off. Check our deals page before buying either.
Our Verdict
For solo sleepers or couples with similar preferences, Koala wins — it's $350 cheaper, offers 20 more trial nights, and its Kloudcell open-cell foam is excellent for Australian conditions. Sleeping Duck Mach II is worth the premium only if you need split-firmness per side — that feature is genuinely transformative for mismatched couples.
You want most Australians — better value, longer trial, simpler purchase.
Check Koala Price → Read Koala Review →You want couples with different firmness needs, and hot sleepers wanting hybrid cooling.
Check Sleeping Duck Price → Read Sleeping Duck Review →