Consider Arctic Frost if…
You want a coil-based mattress and prefer the medium/firm description. Its construction makes it the more relevant starting point when your shortlist centers on hybrids.
Alexa Sleep · Comparison & buying guides
A responsive hybrid or a softer all-foam mattress? Compare Alexa Sleep Arctic Frost with Casper Cloud One by construction, feel and purchase terms.
See the comparisonBy Alexa Sleep · Updated September 8, 2026
This is a comparison of two specific models. Both brands sell other mattresses, so these differences do not apply to every product in either collection.
| What to compare | Alexa Sleep Arctic Frost | Casper Cloud One |
|---|---|---|
| Construction | Foam comfort layers over pocketed coils | All-foam construction; no coils |
| Published profile | Approximately 12 inches | 11 inches |
| Manufacturer’s feel description | Medium/firm | Medium soft |
| Comfort materials | Sofinity foam and a quilted Tencel cover | Breathable foam over memory foam |
| Support core | 7-inch foam-encased pocketed coils | Core+ support foam |
| Trial | Optional trial selection; review the option and terms before checkout | 100 nights; 30-night adjustment period before a return |
| Warranty | 10-year limited warranty | 10-year limited mattress warranty |
Sources: Alexa Sleep Arctic Frost and Casper Cloud One. Policy details are linked at the end of this guide. On a small screen, scroll the table sideways.
You want a coil-based mattress and prefer the medium/firm description. Its construction makes it the more relevant starting point when your shortlist centers on hybrids.
You want an all-foam mattress and a medium-soft description. It is a different construction from Arctic Frost, so trying both styles may be more useful than comparing brand names alone.
Cloud One is an all-foam model; Casper also sells other mattress designs. Arctic Frost combines foam with pocketed coils. That distinction matters more than treating every mattress from either brand as interchangeable. If you specifically want an all-foam Alexa model, compare the Essential Cooling Mattress as well.
The firmness labels here come from each manufacturer, rather than a shared test scale. Your weight, sleep position and preferences may change how either mattress feels. A side sleeper who wants more surface give and a back sleeper who prefers a firmer sensation can reach different conclusions from the same specifications.
A trial and a warranty serve different purposes. Review return eligibility, required adjustment periods, condition requirements and any fees. For Alexa Sleep, confirm the optional trial selected for your order against the return policy before checkout.
There is no universal winner. In this comparison, Arctic Frost is the hybrid option with a medium/firm description; Cloud One is the medium-soft all-foam option. Choose the construction and feel you want, then compare the delivered price and return terms.
The Cloud One model compared here is all foam. Other Casper models use different constructions, so check the full model name before using a comparison table.
Both brands describe features intended to manage heat, but these specifications do not establish a measured cooling winner. Your room, bedding, protector and contact with the mattress also affect temperature comfort.
No. Casper lists a 100-night trial with an initial adjustment period. Alexa Sleep offers optional trial selections. Review the selected option and the full return requirements before ordering.
Review available sizes, current pricing and the options for your order.
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