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Casper

100 nights at Casper; returns after 30 nights; free eligible return10 years warrantyCertiPUR-US

Why we recommend it

+Three-layer foam build with Casper Core support
+Strong motion isolation for an all-foam bed

See all Casper mattresses →

Memory Foam

Casper The One

Name: Casper The One
Brand: Casper
Price: 899 USD
Availability: InStock

By Casper

Casper's entry foam mattress with three layers of responsive foam, a soft knit cover, and a medium-firm feel.

$899Save $250$1,149Queen

Trial: 100 nights at Casper; returns after 30 nights; free eligible return

10 years warranty

Height: 11"

Firmness: Medium-Firm · 6.5/10 feel reference

On the feel scale, 1 is softest and 10 is firmest; feel can vary by body type and sleep position.

CertiPUR-US

Limited time: save $250 at Casper

Buy with confidence

100-night Casper comfort guarantee at Casper

Casper gives direct mattress buyers 100 nights from delivery to decide. After the first 30 nights, Casper arranges free courier pickup for an eligible mattress return and provides a full refund.

Read Casper eligibility and return terms →

How the construction changes the sleep experience

The useful question is what the materials and feel change for the sleeper. Here is the practical case for this exact model, along with the trade-offs to weigh.

What it is built to do

Casper's entry foam mattress with three layers of responsive foam, a soft knit cover, and a medium-firm feel.

✓Three-layer foam build with Casper Core support
✓Strong motion isolation for an all-foam bed
✓Split King available

Who benefits most

Back sleepers

Balanced contouring and surface support matter more than an especially deep or plush sink.

Combination sleepers

Responsiveness matters because it can make position changes feel easier.

Couples

Motion control and usable edge support matter most when two people share the bed.

Value shoppers

Compare the core comfort and support features against the price instead of paying for upgrades you may not need.

What to weigh before buying

•No coil edge feel

Pricing by Size

Size	Reference	Price	Action
Twin	—	$874	Exact size link under verification
Twin XL	—	$779	Exact size link under verification
Full	—	$859	Exact size link under verification
Queen	$1,149	$899Save $250	Exact size link under verification

7.1/10

SleepRanked
Score

SleepRanked Score

The Casper The One score brings together cooling, motion isolation, pressure relief, edge support, durability, price and purchase terms for an at-a-glance comparison. Softer or firmer feel does not raise or lower this general score.

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CoolingAverage

Motion IsolationExcellent

Pressure ReliefGood

Edge SupportFair

DurabilityGood

Price & PoliciesVery good

This score weighs performance, price and purchase terms. Softer or firmer feel does not raise or lower it; the uses your sleep position and feel preferences to help find a suitable match. .