Is the Casper Cloud One good for side sleepers?

Yes. The medium-soft top and memory foam layer cushion shoulders and hips, which suits side sleepers. Stomach sleepers and heavier buyers often find it too soft.

Does the Cloud One sleep hot?

It uses open-cell breathable comfort foam, and most owners say it sleeps cooler than typical memory foam. A mattress protector and a cool room still help.

What sizes does it come in?

Twin, Twin XL, Full, Queen, King and California King. The Queen is 80 inches long and 38 inches wide.

Is it fiberglass-free?

Yes. Casper lists the Cloud One as fiberglass-free and assembled in the USA.

Does it need a box spring?

No. The all-foam mattress works on a platform bed, slatted frame or adjustable base. A box spring is optional.

How does the Cloud One compare with the Casper Original?

The Cloud One is the softer all-foam option, with Core+ pillars and a cradling memory foam top. The Original has a firmer, more supportive feel and adds coils in its hybrid version.

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Home · Mattress Warehouse

Soft landing, smaller footprint

Name: Casper Cloud One Mattress
Brand: Casper
Availability: InStock

Casper Cloud One Mattress

Casper Cloud One mattress for anyone who wants that plush hotel-bed feeling at home.

Deal score 4.5 · Good deal

$919.00$1,324.00 Mattress Warehouse's regular price

You save $405.00 at Mattress Warehouse

Deal.ai's agents found this deal on November 9. The store may have changed its price since.

Why it's a great deal

Elsewhere right now: Casper $919.00, Best Buy Furniture $1,249.00 (typical $1,084.00 across 2 stores)
Mattress Warehouse lists its regular price at $1,324.00: 31% off by its own figures
Rated 4.6 out of 5 by 108 buyers

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thesleeploft.comNew
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$1,581.96Observed at 11:08 AM
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eBayNew
Availability unknownSold by retail_king (99% positive, 78,300 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$751.18Free shippingObserved at 3:38 PM
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eBayPre-owned
Availability unknownSold by giltmodern (100% positive, 34 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
$775.00Free shippingObserved at 6:38 AM
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$919.00Observed Nov 7, 2026, 8:18 AM
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Availability unknown
$1,324.00Observed Nov 5, 2026, 6:37 AM
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From Mattress Overstock Kentucky

Medium-soft all-foam mattress, 11 inches tall
Patent-pending Casper Core+ foam pillars add plushness while keeping support
Open-cell breathable comfort foam built to prevent overheating
Cradling memory foam with pockets of relief for shoulders and hips
All-foam motion isolation keeps a partner's movement on their side
Fiberglass-free, designed and assembled in the USA

Sizes: Twin, Twin XL, Full, Queen, King, Cal King
Materials: Breathe Flex Foam + Align Memory Foam + Casper Core+ support core; fiberglass-free
Fit: Medium-soft; side sleepers are the headline fit, lighter-weight sleepers settle in without bottoming out; heavier sleepers or those who want a firm feel may pre
Guarantee: Casper 10-year limited warranty against manufacturing defects, honored as an authorized Casper dealer; 100-night trial at Mattress Overstock
Returns: No cash refunds: an exchange is for store credit toward a bed of equal or greater value, paying any difference
Shipping: Free local delivery, setup and old-mattress haul-away on qualifying purchases across the Kentucky service area; online shipping charges, if any, show at checkou

Specs

Size: Queen, Twin, King, Full, California King, Twin XL
Type: Innerspring
Thickness: 11 in
Length: 80 in long
Width: 38 in wide

About the Casper Cloud One Mattress

The Cloud One is Casper's medium-soft all-foam mattress, 11 inches tall, built on patent-pending Core+ foam pillars with breathable open-cell comfort foam and a cradling memory foam top. It is fiberglass-free and assembled in the USA, and its all-foam build keeps a partner's movement from crossing the bed. It sits below Casper's hybrid and premium lines, trading coil support and edge firmness for a softer, cradling feel.

Best forSide and combo sleepers who want a soft, cradling feelCouples who want motion isolationShoppers who want a fiberglass-free foam bedGuest rooms and lighter sleepers

Pros

Medium-soft feel with Core+ pillars for support under the plush top
Memory foam layer cushions shoulders and hips
All-foam design isolates a partner's movement
Open-cell foam is built to reduce heat buildup
Fiberglass-free and assembled in the USA
Ships as a bed-in-a-box and expands on setup

Cons

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