Casper Original Foam Mattress (Double) vs Koala Calm As 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.

Casper Original Foam Mattress (Double)

8.9/10 Great

4.3★ (12,400 owners)

Zoned Support, AirScape foam, 100-night, 10-year, the brand that invented DTC mattresses. Original disruptor.

Full Review

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

At a Glance

	Casper Original Foam Mattress (Double)	Koala Calm As Mattress (Double)
247Verdict Score	8.9/10	9.0/10
Owner Rating	4.3★ (12,400)	4.5★ (4,800)
Verdict	Great	Excellent
Foam	AirScape (perforated cooling)	Open-cell
Trial	100 nights	120 nights (longest)
Warranty	10 years	10 years

Quick Verdict

This is a genuine draw — both score within 0.15 points of each other. Casper Original Foam Mattress (Double): Zoned Support, AirScape foam, 100-night, 10-year, the brand that invented DTC mattresses. Original disruptor. Koala Calm As Mattress (Double): Australian design, open-cell foam, copper-infused, 120-night trial, 10-year, B-Corp certified. Choose based on your specific needs. Check the current price on Amazon →

Pros & Cons Side by Side

Casper Original Foam Mattress (Double)

Zoned Support technology is firmer under hips, softer under shoulders — engineered for side sleeping
AirScape foam is perforated for airflow — cooler than standard memory foam
Casper invented the direct-to-consumer mattress category in 2014 — 10 years of market validation
100-night trial with free collection maintains the category standard
12,400 Amazon reviews at 4.3★ across years of UK ownership

All-foam construction — no pocket spring motion isolation for couples
Less technologically sophisticated than Eve Premium Hybrid or Simba at comparable pricing
US brand with UK fulfilment — customer service response varies from US operations

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

FAQ

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

Is the Casper Original Foam worth the extra cost?

The Koala Calm As Mattress (Double) matches or exceeds it at a potentially lower price point.

Who is the Casper Original Foam best suited to?

Zoned Support, AirScape foam, 100-night, 10-year, the brand that invented DTC mattresses. Original disruptor.

Who is the Koala Calm As best suited to?

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

What are the main downsides of each?

Casper Original Foam Mattress (Double): All-foam construction — no pocket spring motion isolation for couples; Less technologically sophisticated than Eve Premium Hybrid or Simba at comparable pricing. 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.

Do owner ratings agree with our verdict?

Largely, yes — Casper Original Foam Mattress (Double) sits at 4.3★ from 12,400 verified Amazon owners, and Koala Calm As Mattress (Double) at 4.5★ from 4,800.

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