Is the Casper One good for side sleepers?

Casper lists it for back and stomach sleepers, and the medium-firm foam may feel too firm for some side sleepers. Side sleepers usually want a softer top layer at the shoulder and hip.

Does the Casper One come with a foundation or base?

No. The mattress ships without a foundation, and Casper lists adjustable bases as compatible. Budget for a base or frame separately.

Does the Casper One contain fiberglass?

No. Casper states the One is fiberglass-free, which matters if you are avoiding fiberglass in mattress covers.

Can I wash the cover?

Yes. The soft knit cover is removable and has a zipper. Follow the care instructions on the label rather than machine washing on a guess.

Is $749 a good price for the Casper One?

It is the only new price listed, $749 at The Home of Foam Mattress Superstore as of November 4, 2026, so there is no second new price to compare it with. Check the size that price covers before judging the deal.

Is the Casper One safe for kids?

Casper does not list it for kids. The listing says "For Kids: No," so look at a mattress explicitly rated for children if that is the use.

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Home · The Home of Foam Mattress Superstore

Casper's foam mattress for the sleeper who wants to sink in

Name: Casper One Foam Mattress
Brand: Casper
Price: 749.00 USD
Availability: InStock
Rating: 4.8 (5 reviews)

Casper One Foam Mattress

The Casper One foam mattress for anyone ready to upgrade their bedroom to a name they trust.

Deal score 4.9 · Good deal

$749.00$1,074.00 The Home of Foam Mattress Superstore's regular price

You save $325.00 at The Home of Foam Mattress Superstore

Checking it's still available…

Why it's a great deal

The Home of Foam Mattress Superstore lists its regular price at $1,074.00: 30% off by its own figures

Visit The Home of Foam Mattress Superstore

Every store we checked

The Home of Foam Mattress SuperstoreNew
In stock
$749.00Observed at 5:51 AM
Visit store
eBayPre-owned
Availability unknown
$550.00Observed at 5:51 AM
Visit store

Price history and every store's price →

From The Home of Foam Mattress Superstore

Medium-firm all-foam mattress
Three supportive, pressure-relieving foam layers
Breathable design with every foam layer made for all-night breathability
Uniquely supportive with a bit of bounce
Designed for deep sleep at an affordable price

Sizes: Twin, Twin XL, Full, Queen, King, California King

Specs

Firmness Level: Medium Firm
Mattress Type: Memory Foam
Type: Mattress
Length: 84" (California King)
Width: 76" (King)
Certifications: CertiPUR-US certified
Core Material: Foam
Cover Material: Soft Knit
Material: Foam
Foundation Type: Adjustable Base

Ask our shopping agent

About the Casper One Foam Mattress

The Casper One is Casper's all-foam mattress, built with memory foam in a medium-firm feel and a soft knit cover that zips off for washing. It is fiberglass-free, CertiPUR-US certified and made in the USA, and it is aimed at back and stomach sleepers who want a simple foam bed. The only new price listed is $749 at The Home of Foam Mattress Superstore as of November 4, 2026, with no other new-price data to compare against.

Best forBack and stomach sleepersShoppers who want a simple all-foam bedHouseholds avoiding fiberglass in mattressesBuyers who want a washable, removable cover

Pros

Medium-firm memory foam suits back and stomach sleepers
Fiberglass-free construction
Removable, zippered soft knit cover
CertiPUR-US certified foam
Designed and assembled in the USA

Cons

No foundation or adjustable base included

More deals like this

More from Casper

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This hour's deals

−30%

Home · The Home of Foam Mattress Superstore

Casper's foam mattress for the sleeper who wants to sink in

Casper One Foam Mattress

The Casper One foam mattress for anyone ready to upgrade their bedroom to a name they trust.

Deal score 4.9 · Good deal

$749.00$1,074.00 The Home of Foam Mattress Superstore's regular price

You save $325.00 at The Home of Foam Mattress Superstore

Checking it's still available…

Why it's a great deal

The Home of Foam Mattress Superstore lists its regular price at $1,074.00: 30% off by its own figures

Visit The Home of Foam Mattress Superstore

Every store we checked

The Home of Foam Mattress SuperstoreNew
In stock
$749.00Observed at 5:51 AM
Visit store
eBayPre-owned
Availability unknown
$550.00Observed at 5:51 AM
Visit store

Price history and every store's price →

From The Home of Foam Mattress Superstore

Medium-firm all-foam mattress
Three supportive, pressure-relieving foam layers
Breathable design with every foam layer made for all-night breathability
Uniquely supportive with a bit of bounce
Designed for deep sleep at an affordable price

Sizes: Twin, Twin XL, Full, Queen, King, California King

Specs

Firmness Level: Medium Firm
Mattress Type: Memory Foam
Type: Mattress
Length: 84" (California King)
Width: 76" (King)
Certifications: CertiPUR-US certified
Core Material: Foam
Cover Material: Soft Knit
Material: Foam
Foundation Type: Adjustable Base

Ask our shopping agent

About the Casper One Foam Mattress

Best forBack and stomach sleepersShoppers who want a simple all-foam bedHouseholds avoiding fiberglass in mattressesBuyers who want a washable, removable cover

Pros

Medium-firm memory foam suits back and stomach sleepers
Fiberglass-free construction
Removable, zippered soft knit cover
CertiPUR-US certified foam
Designed and assembled in the USA

Cons

No foundation or adjustable base included

More deals like this

What reviewers say

Only a handful of ratings are on record, averaging 4.8 out of 5, so the sample is too small to draw firm conclusions.

Pros

Overall satisfaction is high in the ratings posted

Cons

Too few reviews to identify consistent complaints

Questions and answers

Is the Casper One good for side sleepers?: Casper lists it for back and stomach sleepers, and the medium-firm foam may feel too firm for some side sleepers. Side sleepers usually want a softer top layer at the shoulder and hip.
Does the Casper One come with a foundation or base?: No. The mattress ships without a foundation, and Casper lists adjustable bases as compatible. Budget for a base or frame separately.
Does the Casper One contain fiberglass?: No. Casper states the One is fiberglass-free, which matters if you are avoiding fiberglass in mattress covers.
Can I wash the cover?: Yes. The soft knit cover is removable and has a zipper. Follow the care instructions on the label rather than machine washing on a guess.
Is $749 a good price for the Casper One?: It is the only new price listed, $749 at The Home of Foam Mattress Superstore as of November 4, 2026, so there is no second new price to compare it with. Check the size that price covers before judging the deal.
Is the Casper One safe for kids?: Casper does not list it for kids. The listing says "For Kids: No," so look at a mattress explicitly rated for children if that is the use.