⚡ Quick Verdict
Ecosa wins for solo sleepers and budget-conscious buyers — excellent value with adjustable firmness and a 15-year warranty. Sleeping Duck wins for couples who need split firmness, hot sleepers, and those who want hybrid cooling.
At a glance
Full spec comparison
| Feature | Ecosa | Sleeping Duck |
|---|---|---|
| Construction | All-foam | Hybrid (foam + pocket springs) |
| Firmness adjustment | 3 settings — whole mattress only | Per side independently — couples benefit most |
| Cooling | Adequate — graphite-infused foam | Better — hybrid pocket spring airflow |
| Motion isolation | Very good | Good — hybrids transfer slightly more |
| Edge support | Good for foam | Better — spring perimeter holds firm |
| Trial period | 100 nights | 100 nights |
| Warranty | 15 years — longest in Australia | 10 years |
| Price (Queen) | ~$799 AUD | ~$1,399 AUD |
| Best for | Solo sleepers, budget buyers | Couples, hot sleepers |
Comfort & feel
Both mattresses let you dial in firmness, but they do it differently. Ecosa\'s comfort layer flips and rearranges into soft, medium, or firm — a manual, whole-mattress adjustment that takes about 10 minutes to change. The Sleeping Duck Mach II is set per side at order time, from Soft through to Extra Firm, with pocket springs underneath adding a more traditional, responsive bounce that Ecosa\'s all-foam build doesn\'t have.
For a single sleeper who\'s happy to experiment, Ecosa\'s adjustability is more than enough. For a couple who\'ve always disagreed on firmness, Sleeping Duck\'s independent per-side settings solve the problem without anyone needing to compromise or manually swap layers.
Cooling & temperature — the Australian context
Sleeping Duck wins clearly on cooling. Its pocket spring base creates passive airflow through the mattress that no all-foam construction can fully replicate. Ecosa\'s graphite-infused top layer is a genuine improvement over standard memory foam and performs comparably to other quality all-foam options — but it still can\'t match a hybrid in sustained heat.
In Melbourne, Sydney or Adelaide conditions, Ecosa manages heat well enough across most of the year. In Queensland, the NT, or coastal northern NSW, hot sleepers will notice the Sleeping Duck\'s hybrid advantage far more.
Warranty & long-term value
Ecosa\'s 15-year warranty is the longest in Australia by five years over Sleeping Duck\'s 10-year cover. Combined with a $600 lower starting price, Ecosa is the stronger long-term value play for buyers who don\'t specifically need the hybrid or split-firmness features. Sleeping Duck\'s shorter warranty is still competitive by market standards — it just doesn\'t match Ecosa\'s headline number.
Who should buy each one
✓ Buy Ecosa if...
You\'re a solo sleeper or budget-conscious buyer, want the longest warranty in Australia (15 years), and don\'t need per-side firmness or hybrid cooling.
Check Ecosa price →✓ Buy Sleeping Duck if...
You share a bed with a partner who needs a different firmness, sleep hot year-round, or want a hybrid feel with stronger edge support.
Check Sleeping Duck price →Verdict
At $600 less, Ecosa wins easily for solo sleepers. The adjustable firmness, 15-year warranty, and under-$1,000 price make it difficult to beat as a standalone purchase. Sleeping Duck Mach II is worth every extra dollar for couples — the per-side split firmness is a feature you can\'t replicate with any other Australian mattress — and the hybrid construction is genuinely cooler in summer.
You\'re a solo sleeper and budget-conscious buyer who wants excellent value with adjustable firmness and a 15-year warranty.
Check Ecosa Price → Read Ecosa Review →You\'re a couple who needs split firmness, a hot sleeper, or want hybrid cooling and stronger edge support.
Check Sleeping Duck Price → Read Sleeping Duck Review →