Koala Calm As Mattress (Double) vs Tempur Cloud Medium 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

Tempur Cloud Medium Mattress (Double)

9.3/10 Excellent

4.5★ (3,200 owners)

TEMPUR material, medium soft feel, 25-year warranty, SmartCool cover. The pressure relief benchmark.

Full Review

At a Glance

	Koala Calm As Mattress (Double)	Tempur Cloud Medium Mattress (Double)
247Verdict Score	9.0/10	9.3/10
Owner Rating	4.5★ (4,800)	4.5★ (3,200)
Verdict	Excellent	Excellent
Warranty	10 years	25 years

Quick Verdict

Both are strong choices, but the Tempur Cloud Medium Mattress (Double) edges ahead with a 9.3/10 vs 9.0/10. TEMPUR material, medium soft feel, 25-year warranty, SmartCool cover. The pressure relief benchmark. That said, the Koala Calm As Mattress (Double) is worth considering if Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified. 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

Tempur Cloud Medium Mattress (Double)

TEMPUR material was NASA-developed and provides the most precise body-conforming pressure relief available
25-year warranty is the longest of any reviewed mattress — Tempur stands behind their material for a generation
SmartCool cover actively manages surface temperature — addresses TEMPUR material's heat retention
Medium soft feel provides shoulder and hip relief for side sleepers
Tempur's 30+ year clinical validation across hospitals, care homes and elite athlete facilities

£2,000+ is a significant luxury investment — affordable alternatives achieve similar comfort for less
TEMPUR material sleeps warmer than latex or spring alternatives despite SmartCool cover
Extremely heavy at 55kg for a double — requires professional setup and rare repositioning

FAQ

Which is better, Koala Calm As or Tempur Cloud Medium?

Is the Koala Calm As worth the extra cost?

The Tempur Cloud Medium Mattress (Double) matches or exceeds it at a potentially lower price point.

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 Tempur Cloud Medium best suited to?

TEMPUR material, medium soft feel, 25-year warranty, SmartCool cover. The pressure relief benchmark.

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. Tempur Cloud Medium Mattress (Double): £2,000+ is a significant luxury investment — affordable alternatives achieve similar comfort for less; TEMPUR material sleeps warmer than latex or spring alternatives despite SmartCool cover.

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 Tempur Cloud Medium Mattress (Double) at 4.5★ from 3,200.

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