Koala Calm As Mattress (Double) vs OTTY Pure Plus Hybrid 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

OTTY Pure Plus Hybrid Mattress (Double)

8.9/10 Great

4.5★ (6,400 owners)

Responsive latex, pocketed springs, natural wool, 100-night, 10-year. UK made hybrid.

Full Review

At a Glance

	Koala Calm As Mattress (Double)	OTTY Pure Plus Hybrid Mattress (Double)
247Verdict Score	9.0/10	8.9/10
Owner Rating	4.5★ (4,800)	4.5★ (6,400)
Verdict	Excellent	Great
Trial	120 nights (longest)	100 nights
Warranty	10 years	10 years

Quick Verdict

This is a genuine draw — both score within 0.15 points of each other. Koala Calm As Mattress (Double): Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified. OTTY Pure Plus Hybrid Mattress (Double): Responsive latex, pocketed springs, natural wool, 100-night, 10-year. UK made hybrid. Choose based on your specific needs. 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

OTTY Pure Plus Hybrid Mattress (Double)

Natural latex comfort layer provides more responsive bounce than memory foam — feels 'alive' rather than 'sinking'
British wool outer layer naturally temperature-regulates and biodegrades
UK manufactured — OTTY factory in the UK supports domestic production
100-night trial with free UK collection if unsatisfied
10-year warranty from a UK brand with accessible customer service

Natural latex scent when new — dissipates within 2-4 weeks of airing
Medium-firm only — no softness options unlike Simba's firmness range
Less brand recognition than Emma, Eve or Simba for first-time buyers

FAQ

Which is better, Koala Calm As or OTTY Pure Plus Hybrid?

Is the Koala Calm As worth the extra cost?

Yes — Koala Calm As Mattress (Double) scores higher at 9.0/10 vs 8.9/10.

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 OTTY Pure Plus Hybrid best suited to?

Responsive latex, pocketed springs, natural wool, 100-night, 10-year. UK made hybrid.

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. OTTY Pure Plus Hybrid Mattress (Double): Natural latex scent when new — dissipates within 2-4 weeks of airing; Medium-firm only — no softness options unlike Simba's firmness range.

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 OTTY Pure Plus Hybrid Mattress (Double) at 4.5★ from 6,400.

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