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Top3 Mattress compares mattresses sold in Australia, and we make our money when a reader buys through one of our links. Brands pay us advertising and referral fees, and those arrangements affect which mattresses we cover and how high they sit in our rankings. Some mattresses here have no arrangement with us at all.

Every mattress is scored against the same ten published criteria, and each of the ten scores is shown alongside the total. What those criteria measure, and how the total is set, are laid out on our How we rate page. The work behind the scores is desk work: we read published specifications, warranty documents and trial terms, and cross-check them against each manufacturer's own pages. We do not buy these mattresses and sleep on them, and no score here comes from in-home testing.

We do not cover every mattress sold in Australia, and the ones we can earn a commission on are more likely to be among the ones we do cover. Prices, trial lengths and warranty terms change without notice, so check the brand's own page before you buy. A ranking here is not a guarantee about a product and not an endorsement of it. Our full terms are set out in the Terms of use.

Head to head

Emma vs Sleeping Duck

Both are spring hybrids. Sleeping Duck is the more configurable mattress by a wide margin: medium, firm, or a different firmness on each side, changed by swapping foam pads at home for free. Emma cannot be adjusted at all, but it gives you 150 nights to Sleeping Duck's 100 and does not restrict which bed base you put it on.

Direct Verdict & Recommendation Answer-First Comparison

The Short Answer: Which mattress should you choose?

Both are spring hybrids. Sleeping Duck is the more configurable mattress by a wide margin: medium, firm, or a different firmness on each side, changed by swapping foam pads at home for free. Emma cannot be adjusted at all, but it gives you 150 nights to Sleeping Duck's 100 and does not restrict which bed base you put it on.

  • Price Advantage: Sleeping Duck starts lower at From $999.
  • Cooling & Airflow: Emma leads cooling with a score of 8.9/10.
  • Trial Guarantee: Emma gives 150 nights vs Sleeping Duck with 100 nights.

Key differences at a glance

Build & Feel

Construction & Alignment

Emma: Hybrid (Pocket Spring + Memory Foam) (Medium-Soft)

Sleeping Duck: Hybrid (Pocket Spring + Foam) (Adjustable — Medium / Firm / Half-half)

Comfort Scores

Cooling & Motion Transfer

Emma: Cooling 8.9/10, Motion 8.8/10

Sleeping Duck: Cooling 8.4/10, Motion 8.7/10

Purchase Terms

Trial, Price & Warranty

Emma: From $1,759 · 150 nights trial · 10 years warranty

Sleeping Duck: From $999 · 100 nights trial · 10 years warranty

The differences that matter

Emma compared with Sleeping Duck
Specification Emma Sleeping Duck
Entry price From $1,759 From $999 (better of the two)
Sleep trial 150 nights (better of the two) 100 nights
Warranty 10 years 10 years
Overall score 9.1 9.1
Cooling score 8.9/10 (better of the two) 8.4/10
Motion isolation score 8.8/10 (better of the two) 8.7/10
Edge support score 9/10 9/10
Firmness Medium-Soft Adjustable — Medium / Firm / Half-half
Construction Hybrid (Pocket Spring + Memory Foam) Hybrid (Pocket Spring + Foam)
Height / Profile 26 cm 31 cm
Key materials 7-zone pocket springs, Reinforced perimeter foam frame, ThermoSync graphite foam, PolarLuxe cover Twice-tempered steel pocket springs, High-density AirGrown polyurethane foams, BreatheTech knitted bamboo cover
Delivery & returns Free to select metro areas · 1–3 working days Free next business day · most metro, some regional

Scores, pricing, trials and warranties highlight the category leader. Firmness, materials and profile dimensions are listed as individual sleeping preferences rather than absolute winners.

Final recommendation: Which one is right for you?

These two suit different sleepers. Use the criteria below to match your body type, sleeping position and temperature needs to the right choice.

Choose Emma if…

Medium-soft suits you, you want a long trial, or your bed base is sprung or adjustable.

Check Emma price

Choose Sleeping Duck if…

You want to tune the feel — especially if you and your partner want different sides.

Check Sleeping Duck price

Pros and cons, side by side

Emma

Pros

  • A 150-night trial — 30 nights more than Newentor, Origin or Koala, 50 more than Ecosa
  • A foam frame around the springs, so the edge holds when you sit on it
  • Cooling is built into all three layers: graphite foam, a polyethylene-blend cover and an open spring core
  • Seven support zones across the length of the bed

Cons

  • Medium-soft is the only firmness Emma makes, so there is no firmer version to switch to
  • Free delivery and returns cover select metro addresses only; outer and regional areas pay a fee
  • Delivery fees are not refunded if you return it inside the trial
  • No foam or textile certification is published

Sleeping Duck

Pros

  • Each side can be a different firmness, and a half-half queen costs the same as a single-firmness one
  • Firmness is changed by swapping foam pads at home — free and unlimited during the 100 nights, in soft, medium, firm or extra firm
  • The cover and both foam layers lift out and can be replaced individually, so one worn part does not mean a new mattress
  • A perimeter zone of high-strength steel springs, so the edge holds when you sit on it

Cons

  • A queen is $1,649
  • A 100-night guarantee, the same as Ecosa and shorter than Newentor, Koala, Origin, Onebed and Emma; returns are capped at two mattresses per household
  • Putting it on a sprung or adjustable base voids the 10-year warranty, as do slats more than 12 cm apart
  • The warranty sets a 140 kg limit per sleeper and only counts sagging deeper than 30 mm as a defect

Emma vs Sleeping Duck: Frequently Asked Questions

Is Emma or Sleeping Duck better for back support and spinal alignment?

Emma: Hybrid (Pocket Spring + Memory Foam), firmness Medium-Soft. Sleeping Duck: Hybrid (Pocket Spring + Foam), firmness Adjustable — Medium / Firm / Half-half. As a general rule, zoned pocket-spring hybrids push back more under the lower back and hips, while all-foam builds contour more closely around the shoulders and hips. Firmness preference matters as much as construction.

Which mattress sleeps cooler in Australian climates: Emma or Sleeping Duck?

Emma scores higher for cooling: 8.9/10 against 8.4/10 for Sleeping Duck. The cooling score is our assessment of each brand's published materials and construction; we do not run temperature tests.

How do the trial periods and warranties compare between Emma and Sleeping Duck?

Emma: sleep trial 150 nights; warranty 10 years. Sleeping Duck: sleep trial 100 nights; warranty 10 years. Trial conditions such as minimum nights, return fees and delivery areas differ between brands, so read each brand's terms before you buy.

Other match-ups

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