Koala Calm As Mattress (Double) vs Leesa Original Foam Mattress (Double) (2026)

✍️ By the 247Verdict Editorial Team📅 Updated 05 October 2026

Which is better? We compared both on score, owner ratings, pros and cons.

Koala Calm As Mattress (Double)

9.0/10 Excellent

4.5★ (4,800 owners)

Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified.

Full Review

Leesa Original Foam Mattress (Double)

8.8/10 Great

4.3★ (6,400 owners)

LSA200 foam, medium feel, 100-night trial, 10-year warranty, B-Corp. The ethical mattress.

Full Review

At a Glance

	Koala Calm As Mattress (Double)	Leesa Original Foam Mattress (Double)
247Verdict Score	9.0/10	8.8/10
Owner Rating	4.5★ (4,800)	4.3★ (6,400)
Verdict	Excellent	Great
Trial	120 nights (longest)	100 nights
Foam	Open-cell	LSA200 proprietary
Warranty	10 years	10 years

Quick Verdict

Both are strong choices, but the Koala Calm As Mattress (Double) edges ahead with a 9.0/10 vs 8.8/10. Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified. That said, the Leesa Original Foam Mattress (Double) is worth considering if LSA200 foam, medium feel, 100-night trial, 10-year warranty, B-Corp. The ethical mattress. Check the current price on Amazon →

Pros & Cons Side by Side

Koala Calm As Mattress (Double)

120-night trial — the longest single-period trial alongside DreamCloud reviewed
B-Corp certified — Koala's environmental and social standards verified by third-party assessment
Copper-infused open-cell foam provides antimicrobial properties alongside cooling
Australian design heritage applied to UK market — different design philosophy from UK brands
10-year warranty with B-Corp accountability for long-term quality commitment

Less brand recognition in UK vs Emma, Eve or Simba
Copper infusion adds cost without the temperature improvement of true airflow hybrids
Australian brand with UK fulfilment — customer service response from Australian headquarters

Leesa Original Foam Mattress (Double)

B-Corp certified — Leesa's social mission donates 1 mattress per 10 sold to shelters
LSA200 foam provides pressure relief with more responsive bounce than traditional memory foam
100-night trial with free collection maintains the category standard
10-year warranty from a B-Corp business prioritising customer trust
More environmentally considered manufacturing than most competitors

Medium feel only — no firmness customisation unlike Saatva or Simba options
LSA200 foam less established than Tempur or Simba's multi-layer systems
US brand with UK fulfilment — customer service response times vary

FAQ

Which is better, Koala Calm As or Leesa Original Foam?

Is the Koala Calm As worth the extra cost?

Yes — Koala Calm As Mattress (Double) scores higher at 9.0/10 vs 8.8/10.

Who is the Koala Calm As best suited to?

Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified.

Who is the Leesa Original Foam best suited to?

LSA200 foam, medium feel, 100-night trial, 10-year warranty, B-Corp. The ethical mattress.

What are the main downsides of each?

Koala Calm As Mattress (Double): Less brand recognition in UK vs Emma, Eve or Simba; Copper infusion adds cost without the temperature improvement of true airflow hybrids. Leesa Original Foam Mattress (Double): Medium feel only — no firmness customisation unlike Saatva or Simba options; LSA200 foam less established than Tempur or Simba's multi-layer systems.

Do owner ratings agree with our verdict?

Largely, yes — Koala Calm As Mattress (Double) sits at 4.5★ from 4,800 verified Amazon owners, and Leesa Original Foam Mattress (Double) at 4.3★ from 6,400.

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