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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.
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Head to head

Koala vs Sealy

Sealy is an innerspring bought in-store with four firmness levels and the only specified edge reinforcement on this list, in the thickest build here — but it costs several times what a Koala does and comes with no sleep trial. Koala ships to you, flips between two firmnesses, includes free returns inside 120 nights, and scores highest here on service. Koala's CHOICE and ProductReview recognition applies to the Koala range rather than to this specific model.

The differences that matter

Koala compared with Sealy
Specification Koala Sealy
Entry price From $712.00 (better of the two) From $2,399
Warranty 10 years 10 years
Overall score 9.2 (better of the two) 8.4
Firmness Flippable — Medium-firm / Firm (7/10) Four levels — Firm / Medium / Plush / Ultra Plush
Construction All-foam Innerspring

Firmness and construction are listed as differences, not as a winner — which one suits you depends on how you sleep, not on which is better made.

Which one is for you

Choose Koala if…

You are buying online and want the right to send it back.

Check Koala price

Choose Sealy if…

You want to test it in a showroom, need a specific firmness out of four, and edge support is a priority.

Check Sealy price

Pros and cons, side by side

Koala

Pros

  • Flippable firmness — change your mind without sending it back
  • The 120-night trial includes free returns
  • CHOICE Recommended and ProductReview.com.au awards 2023–2025 — given to the Koala range, not to this model alone
  • All-foam build with Zero Disturbance makes it strong for couples

Cons

  • All-foam, so it runs warmer than a spring hybrid
  • Only five sizes — no Long Single or Super King
  • Three support zones where several rivals offer seven
  • At $999.20 for a Queen it sits well above budget boxed rivals

Sealy

Pros

  • Four walls of UniCased XT edge reinforcement, specified by the maker rather than left unstated
  • Four firmness levels at the same price, so choosing the feel costs nothing
  • Stocked in Harvey Norman stores, so you can lie on it before you buy
  • Made in Australia, which Sealy states on the product page

Cons

  • A queen is $3,699 — around three times Ecosa and six times Newentor
  • No sleep trial, so the showroom is the only chance to test it
  • Sealy does not sell direct; you buy through Harvey Norman
  • The Rosewood build is a Harvey Norman exclusive, so you cannot price-compare it elsewhere

Other match-ups

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