Yes, Casper is worth buying for most buyers. Sleep Foundation rates Casper One 8.8 overall and says it excels at relieving pressure.
The One costs $1,330 less than Saatva Classic for a Queen: $899 versus $2,229.00. Saatva Classic is a luxury innerspring with three firmness levels: Plush Soft (3/10), Luxury Firm (5 to 7/10), and Firm (8/10). Saatva says its Luxury Firm suits couples with different firmness preferences.
IKEA VALEVÅG is a budget pick for shoppers who want a firm pocket-spring Queen at $399.
The trial lasts 100 nights from delivery, with the first 30 nights for adjustment. Returns are free after that. Final Sale or Clearance items cannot be returned. Individual bundle products cannot be returned separately unless otherwise specified.
Buy it only if you have a firm surface or flat wooden slats 4 inches apart or less.
The One
The One mattress with Breathe Flex Foam
FirmnessMedium-firm3-5
Mattress TypeAll foam11 in
Queen $$899
Key Strengths
Three foam layers. The One is all-foam, for buyers who do not want springs.
Cloud One costs $396 less than Dream for a Queen: $1,099 versus $1,495. Cloud One is medium-soft. Dream is medium.
Snow Max has six aluminum graphite bands. Snow has three bands, while Snow Max also has more phase-change material. Snow Max costs $1,050 more than Snow for a Queen: $3,090 versus $2,040.
Good to Know
Mattress shipping is free in the contiguous U.S. Alaska and Hawaii shipping costs $250 per item. In-home delivery and room setup cost $249.
In-stock UPS delivery typically takes 2-8 business days. In-home delivery typically takes 2-4 weeks.
The One is medium firm (6) in Sleep Foundation's review. Shoppers who want a firm feel may prefer a firmer option.
Casper is a sound choice for most buyers. The right model depends on your feel and needs. Outside reviews cover different models and rating goals.
Outside review scores
Review sites checked: 4 outlets. Their scores: 3.7 overall to Excellent (9) for average-weight back support. Model they tested: Casper One; medium firm (6); Casper Original; 7/10 firmness; Casper Original all-foam; slightly firm (7/10); Casper Original (2018-2024); medium-firm (4). Each site tests in its own way, so read each row on its own.
Yes, Casper is worth buying for most buyers.Saatva Classic is the better fit if you want a luxury innerspring. Sleep Foundation rates Casper One 8.8 overall. The One is $1,330 less than Saatva Classic for a Queen: $899 versus $2,229.00.
8.8
Sleep Foundation overall rating
Sleep Foundation rates Casper One 8.8 overall and says it excels at relieving pressure. Weigh that result against the feel and price you want.
3.7
Mattress Clarity overall rating
Mattress Clarity rates Casper Original 3.7 overall. Match the model name before using that result to choose.
4.3 out of 5
Sleepopolis score
Sleepopolis gives Casper Original 4.3 out of 5 and calls it a great option for back sleepers. Treat that as a fit clue, not a promise.
When Casper makes sense
You prefer an all-foam bed: The One has three layers of foam and no springs.
A medium-firm feel suits you: Sleep Foundation tested Casper One at medium firm (6).
You sleep on your side and weigh over 230 lb: Sleep Foundation gives Casper Snow Mattress a 7.5 score for side sleepers over 230 lb.
You prefer to buy in person: Casper sells through retail stores across the U.S..
When Another Mattress May Suit You Better
A luxury innerspring fits your needs: Saatva Classic offers three firmness levels: Plush Soft (3/10), Luxury Firm (5 to 7/10), and Firm (8/10).
Firm pocket springs fit your needs: IKEA VALEVÅG pocket spring mattress, firm/white is $399 for a Queen.
A lower profile is a priority: VALEVÅG is 9.5 inches thick, versus The One at 11 in.
Review site scores
How the big review sites score Casper
Each site's own score, side by side.
Scroll sideways to see the whole table
Publication
Reported Score
Configuration Tested
Date
Evaluation Focus
Sleep Foundationsleepfoundation.org
8.8 overall
Casper One; medium firm (6)
October 13, 2025
Excels at relieving pressure
Mattress Claritymattressclarity.com
3.7 overall
Casper Original; 7/10 firmness
October 6, 2026
Praised for back sleepers
Sleepopolissleepopolis.com
4.3 out of 5
Casper Original all-foam; slightly firm (7/10)
October 6, 2026
Praised as a great option for back sleepers
GoodBedgoodbed.com
Average-weight back support: Excellent (9)
Casper Original (2018-2024); medium-firm (4)
February 23, 2026
Praised for support and spinal alignment
Main configuration: Casper One; medium firm (6); Casper Original; 7/10 firmness; Casper Original all-foam; slightly firm (7/10); Casper Original (2018-2024); medium-firm (4). Each outlet uses its own method, so we don't combine these scores into one rating.
Reading the scores
Why we don't average the scores
A single average would mix overall ratings with a back-support grade. Match each result to its model and firmness before using it to choose.
Each score comes from that outlet's own review. Prices, models and policies can change after a review.
Chapter 02
Comfort and firmness: which mattress fits you
Why this matters to you: For sleepers over 230 lbs, Casper's match shifts with sleep position. Use the model tied to your position, then check its feel.
Select your sleep position and weight to see a Casper model, firmness, fit score, Queen price, and trial. Use both details to make your pick.
Figure 3.1: Check how your neck, shoulders, lower back, and hips line up.
Find your Casper fit
Which Casper mattress fits you?
Fit score
Choose your sleep position and weight. The result shows a Casper model, firmness, fit score, Queen price, and trial.
Choose both options
Pick a sleep position and a weight
Your result shows here.
Scroll sideways to see the whole table
Your Body Weight
Side Sleepers
Back Sleepers
Stomach Sleepers
Over 230 lbs
Snow
The One
The One
Neck: lie on your side with your usual pillow. Is your head level with your spine?
Shoulders: on your side, notice whether your bottom shoulder feels pressed.
Lower back: on your back, notice whether your lower back feels supported.
Hips: notice whether your hips feel comfortable and whether you can turn easily.
Figure 3.1: Four comfort checks when you lie on a mattress: neck, shoulders, lower back and hips.
Chapter 03
Compare the mattresses
Why this matters to you: Start with the feel you want. Then check the Queen price and height against your budget and bed setup.
Casper's six mattresses use all-foam or hybrid builds, with different heights, firmness labels, and Queen prices. Compare the choices by what matters most to you before you decide.
Set your Queen budget, then choose a firmness label that fits your needs. Compare the main layers if two models seem close.
Casper calls The One medium-firm. Its guide gives two ranges: 3-5 and 5-6. Use the label, not one exact number, when comparing The One.
Scroll sideways to see the whole table
Visual
Model
Type
Height
Firmness
Queen $
Main layers
The One
All-foam, three layers of foam
11 in
Medium-firm
$899
Breathable polyurethane foam, memory foam, polyurethane foam base
Cloud One
All-foam, three layers of foam
11 in
7-8, medium-soft
$1,099
Breathable polyurethane foam, memory foam, polyurethane foam base with patented Core+ design
Dream
Hybrid, pressure-relieving foam and supportive springs
12 in
5-7, medium
$1,495
Breathable polyurethane foam, zoned memory foam, polyurethane foam base with encased springs
Snow
Hybrid, pressure-relieving foam and supportive springs
12 in
5-7, medium
$2,040
Breathable memory foam, zoned memory foam, polyurethane foam base with encased springs
Dream Max
Hybrid, polyurethane foam layers with encased springs
14 in
7-8, medium-soft
$2,525
Breathable polyurethane foam, zoned polyurethane foam, contoured polyurethane foam, polyurethane foam base with encased springs
Snow Max
Hybrid, memory foam layers with encased springs
14 in
7-8, medium-soft
$3,090
Breathable memory foam with phase-change coating, zoned memory foam, contoured memory foam, polyurethane foam base with encased springs
Three-layer all-foam mattress
The One: The One: Medium-firm foam with a breathable top layer
Best Seller
The One mattress, product photo
ConstructionAll-foam; three foam layers
Profile11 in
FirmnessMedium-firm
Queen $$899
Signature foamBreathe Flex Foam
Casper labels The One medium-firm. A breathable foam top sits over memory foam and a foam base.
The One costs $899 for a Queen, less than Cloud One, Dream, Snow, Dream Max, and Snow Max. Cloud One is the step up at $1,099, a $200 gap. There is no step down.
For stomach sleepers over 230, Sleep Foundation rates The One 5/10 for fit. Treat that as a caution for this group.
Best For
You value pressure relief: Sleep Foundation says Casper One excels at relieving pressure and gives it 8.8 overall.
You want foam rather than coils: The One is all-foam, while Casper Dream has encased springs.
You want a lower Queen price than Saatva Classic: The One costs $1,330 less.
Consider Instead If
Choose Cloud One over The One if you want a softer feel. Casper labels Cloud One medium-soft, 7-8.
Choose Saatva Classic over The One if you want a firm setting. Saatva Classic offers a Firm option at 8/10.
Choose IKEA VALEVÅG for a firm pocket-spring Queen at $399, instead of The One's all-foam build.
Choose Cloud One if you want a medium-soft foam feel with Casper Core+™ pillars. Casper pairs Breathe Flex Foam with Align+ Memory Foam in its comfort layers.
Cloud One costs $200 more than The One at Queen prices of $1,099 and $899. Cloud One costs $396 less than Dream at Queen prices of $1,099 and $1,495.
Casper’s 7-8, medium-soft label is the main caution if you prefer a firmer feel.
Best For
You prefer a medium-soft feel over Dream’s medium rating.
You want a foam bed instead of Dream’s pocketed springs.
You want foam tested for emissions, content, and durability under CertiPUR-US®.
Consider Instead If
If you prefer a firmer feel, choose The One at $899; Casper labels it medium-firm.
If you want springs and a medium feel, choose Dream at $1,495; Casper rates it 5-7.
ConstructionHybrid with polyurethane foam layers and encased springs
Profile14 in
Firmness7-8, medium-soft
Queen $$2,525
Signature featureZoned Support Max™
Dream Max is a hybrid with polyurethane foam layers over encased springs. Casper labels its feel medium-soft (7-8) and lists Zoned Support Max™ as a signature feature.
At Queen prices, Dream Max costs $485 more than Snow and $565 less than Snow Max. Its price sits between the two.
Check your sheet depth and bed height before buying: Casper lists a 14 in profile.
Best For
You want a taller build than Dream and Snow: Dream Max is 14 in; both are 12 in.
You prefer polyurethane foam to memory foam. Dream Max uses polyurethane; Snow and Snow Max use memory foam.
You want both named support systems: Zoned Support™ and Zoned Support Max™.
Consider Instead If
Choose Snow for a firmer listed feel. Casper rates it medium (5-7).
Choose Snow Max for its cooling-focused build. It has six aluminum graphite bands and more phase-change material.
Choose Saatva Classic if you want three firmness levels: Plush Soft (3/10), Luxury Firm (5 to 7/10), and Firm (8/10).
Hybrid mattress with memory foam and encased springs
Snow Max: Snow Max: phase-change material for its cooling build
Cooling-focused hybrid
Snow Max mattress, product photo
ConstructionMemory foam and encased springs
Profile14 in
Firmness7-8, medium-soft
Queen $$3,090
Snow TechnologySix aluminum graphite bands
Snow Max is Casper's medium-soft hybrid, with memory foam over encased springs. Casper says Snow Technology adds more phase-change material for cooling.
Snow Max is the lineup's highest-priced Queen, so it has no step up. Dream Max is the step down at $2,525. Snow Max costs $565 more than Dream Max. Choose Snow Max only if its added cooling hardware matters to you.
Best For
You want more Snow cooling hardware: Snow Max has six aluminum graphite bands, while Snow has three.
You prefer memory foam with springs: Snow Max uses memory foam layers, while Dream Max uses polyurethane foam layers. Both have encased springs.
You want a hybrid, not an all-foam Casper: Snow Max has encased springs. The One and Cloud One are all-foam.
Consider Instead If
If you want Snow's cooling build for a lower Queen price, choose Snow. Snow Max costs $1,050 more than Snow, at Queen prices of $3,090 and $2,040. Snow is medium (5-7), while Snow Max is medium-soft (7-8).
If you want a medium-soft Casper for less, choose Dream Max. Snow Max costs $565 more than Dream Max, at Queen prices of $3,090 and $2,525. Both are 14 in and medium-soft (7-8).
Why this matters to you: Casper has six Queen models with different builds and prices. Choose by the feature you need to avoid paying for cooling or support you will not use.
Casper's current Queen prices range from The One at $899 to Snow Max at $3,090. Snow Max costs $2,191 more than The One, with a hybrid build and Snow Technology. Pay more if cooling matters to you.
The One is all foam. Cloud One costs $1,099 and adds patent-pending Core+ foam pillars. Dream costs $1,495 and adds zoned memory foam with pocketed springs. Choose Dream for a hybrid build, not an all-foam feel.
Snow costs $2,040 and has Snow Technology with three aluminum graphite bands and a cool-to-the-touch coating. Dream Max costs $2,525, $485 more than Snow, and adds Zoned Support Max. Pick Snow for cooling if those features matter more to you.
Snow Max has six aluminum graphite bands and more phase-change material. Snow Max costs $565 more than Dream Max. Choose Snow Max for those cooling features; skip that price step if you do not need them.
Check delivery options and fees in Delivery & Setup before you buy.
Check the current price and any discount before buying.
Chapter 05
How well do the mattresses hold up?
Why this matters to you: Durability matters because sag can affect comfort and a warranty claim. Check the mattress base and coverage terms before you buy.
Casper's durability picture has three parts: a time claim, a foam check, and owner reports. Read them together before deciding whether the evidence fits your needs.
Casper calls The One's polyurethane foam base durable. The One and Cloud One use three foam layers and carry CertiPUR-US® certification. CertiPUR-US says its certification tests foam for emissions, content, and durability. Compare the named base and foam certification when choosing between these all-foam models.
What to watch for, and when:
Casper says its mattresses provide lasting support for a full decade.
Who owns Casper: Carpenter Co. is the parent as of 2024; Durational Capital Management acquired Casper in 2022.
Where sources disagree
Recent BBB customer reviews for Casper Sleep Inc.'s headquarters and corporate-owned locations report sagging or sinking and warranty claims.
Chapter 06
Sleep trials, returns, exchanges and fees
Why this matters to you: A return can hinge on what you buy. Check the item and bundle limits before ordering.
Casper offers 100 nights from delivery, with free returns after the adjustment period.
The first 30 nights are a required adjustment period.
After a return, Casper credits the refund to your account within two weeks.
After delivery, step by step
DeliveryThe trial starts
After 30 nightsThe adjustment period ends; free returns begin
Night 100Last night of the trial
What each choice costs you
Keep it$0Nothing more to do
Return itFree after the 30-night adjustment periodRefund credited to your account within two weeks
Swap itFree after 30 nightsExchanges are handled as returns during the trial
Not covered: Final Sale or Clearance products cannot be returned or exchanged; bundle products cannot be returned separately, except where otherwise specified.
Figure 6.1: What happens after delivery, and what each choice costs.
The return fee is $0. No return charge is deducted from your refund.
Casper handles exchange requests as returns during the trial. After the first 30 nights, an exchange is free.
Check the terms for your seller and order date before buying from Casper.
Chapter 07
Delivery, setup and old-mattress removal
Why this matters to you: Your delivery choice affects **the wait and setup help**. Check old-bed removal for your address before ordering.
Casper's in-stock UPS orders typically arrive in 2-8 business days; in-home delivery typically takes 2-4 weeks. Choose by your move-in date, since in-home delivery takes longer.
Casper sends mattresses by UPS Standard Ground. Shipping is free in the contiguous U.S.; it costs $250 per item to ship mattresses to Alaska or Hawaii. In-home delivery and setup cost $249 for eligible products. Old-mattress removal is optional and free with in-home delivery; LoadUp removal costs $150 in eligible areas, excluding California. Before ordering, confirm delivery timing, setup, and removal for your address. Figure 9.1: Casper delivery options in the contiguous U.S., Alaska, and Hawaii.
Typical wait: UPS: typically 2-8 business days; in-home delivery: typically 2-4 weeks
The mattress arrives in a box.
RXO partners bring eligible products to the right room, set them up, and remove packaging.
Choose an available removal option if you want the old mattress taken away.
Figure 9.1: What happens between your order and your first night.
Confirm the delivery date, setup and removal terms for your address before ordering.
Chapter 08
Terms checked on the brand's site · recheck before you buy
What do the warranties cover?
Why this matters to you: A warranty does not cover every sag. Check your bed frame before buying, since base support can affect sag coverage.
Casper covers a visible indentation greater than 1 inch unless an improper or unsupportive base caused it. Stains or liquid damage are excluded when they cause the defect. Keep proof of purchase.
Warranty term:10 years; 5 years for Final Sale or Clearance; 3 years for Trade Customers.
Claim shipping: You do not pay required return shipping. Casper ships the repaired or replacement mattress back.
Warranty length: 10 years; 5 years for Final Sale or Clearance; 3 years for Trade Customers
Dip depth rule: Visible indentation greater than 1 inch
What voids it or is not covered: Stains or liquid damage if they caused the defect; related sag from an improper or unsupportive base is not covered; a claim requires proof of purchase.
Who pays shipping on a claim: Customer is not responsible for required return shipping; Casper ships the repaired or replacement mattress back.
Before you set it up
Which bed bases work
Base rules
Check the table before you pick a base. The wrong base can limit your warranty coverage, even on a new bed.
Scroll sideways to see the whole table
Base
OK?
What the rule says
If you use it
Slatted frame
Allowed with limits
Flat, not bowed wooden slats no more than 4 inches apart
Sag or indentation resulting from an improper or unsupportive foundation is not covered.
Box spring
Not allowed
Do not use a box spring
Using a box spring voids the warranty.
Platform bed
Allowed
A firm, solid surface
Sag or indentation resulting from an improper or unsupportive foundation is not covered.
Adjustable bed base
Allowed
A firm, solid surface; the base must support the mattress and users.
Sag or indentation resulting from an improper or unsupportive adjustable base is not covered.
Floor placement
Allowed with limits
Continuous support from a foundation or adjustable bed base on a proper bed frame
Direct floor placement can jeopardize coverage for sagging or indentations.
Metal frame
Allowed with limits
Use a proper foundation with the metal frame.
Sag or indentation resulting from an improper or unsupportive foundation is not covered.
Chapter 09
Review counts checked on each site · counts can change
Customer reviews and complaints
Why this matters to you: Check who left each review before relying on a score. Casper.com, outside review sites, product listings, and store pages are different pools, so their scores answer different questions.
On 2026-10-25, Casper.com listed 110,000 5-star reviews. Trustpilot listed 6,093 reviews and a 2.0 out of 5 score that day.
How we read the reviews
We keep each review pool separate; we do not combine its rating with another site's score.
Amazon's listing is product-specific, for the Casper Sleep Element Queen.
Google's pool is for one store: Casper - NoHo, shown on Birdeye.
On 2026-10-25, we checked Casper.com's reviews page and Trustpilot's casper.com page. We also checked the BBB customer review profile and Amazon's Casper Sleep Element Queen listing that day. We checked Google reviews for Casper - NoHo on Birdeye. We recorded each pool's displayed rating and sample count separately.
Read each platform on its own: who runs it, its rating scale, how many reviews it has, and the date we checked it.
Reported praise and concerns:
Casper.com testimonials praise comfort and support, including relief for back problems.
Recent Trustpilot reviews shown cite customer service and warranty or return handling.
Recent BBB reviews shown cite mattress sagging or sinking and warranty claims.
Recent Google excerpts for Casper - NoHo praise helpful, patient in-store staff.
One reviewer in those recent excerpts says the store refused a return.
Review sites side by side
What each review site says
Separate review pools
Before relying on a rating, match its pool to the product or store you plan to buy from. Read its sample count beside the score to judge how much feedback it represents.
Scroll sideways to see the whole table
Platform
Rating
Sample
Positives
Concerns
Platform mark:Casper.com customer reviews and testimonials (read 2026-10-25)
4/5 sleepers recommend Casper to family
110,000 5-star reviews
Comfort and support, including relief for back problems
Platform mark:Trustpilot reviews of casper.com (read 2026-10-25)
2.0 out of 5
6,093 reviews
Recent Trustpilot reviews shown cite customer service and warranty or return handling
Platform mark:Better Business Bureau customer reviews for Casper Sleep Inc.'s headquarters and corporate-owned locations (read 2026-10-25)
1.18 average customer review rating
22 customer reviews
Recent BBB reviews shown cite mattress sagging or sinking and warranty claims
Platform mark:Amazon customer reviews for the Casper Sleep Element Queen listing (read 2026-10-25)
4.4 out of 5 stars
6,088 ratings
Platform mark:Google reviews for Casper - NoHo, shown on Birdeye (read 2026-10-25)
One reviewer in recent excerpts says the store refused a return
Chapter 10
What are the mattresses made of?
Why this matters to you: Materials shape feel and cooling features. Check the fire-barrier details if that part matters to you.
The rows show what each Casper model uses for comfort, support, cooling, and fire safety. Compare its foam layers, coils, and cover for your feel, heat, and safety priorities. CertiPUR-US® has a separate scope.
Casper's product listings name different comfort foams, support bases, cooling features, and covers by model. Compare the full row for the exact mattress you plan to buy.
What is inside each model
Scroll sideways to see the whole table
Model
Comfort layers
Support
Coils
Cooling
Cover
Fire barrier
The One
Breathe Flex Foam and Align+ Memory Foam
Casper Core high-density foam base
All-foam design
Breathable open-cell foam
Knit cover
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Cloud One
Breathe Flex Foam and Align+ Memory Foam
Patent-pending Casper Core+ foam pillars and polyurethane foam base
All-foam design
Breathable open-cell foam
Knit cover
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Dream
Breathe Flex Foam
Zoned Support™ and Casper Core high-density foam base
Individually pocketed springs
Breathable open-cell foam
Airy knit Cozy Cover or optional QuickCool cover with cool-to-the-touch fibers
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Snow
Breathe Memory Foam
Zoned Support™ and Casper Core high-density foam base
Individually pocketed springs
Three aluminum graphite bands and phase-change coating
QuickCool knit cover with specialty cool-to-the-touch fibers
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Dream Max
Breathe+ Flex Foam
Zoned Support™, Zoned Support™ Max, and Casper Core foam base
Individually pocketed springs
Ultra-breathable open-cell Breathe+ Flex Foam
Airy knit Cozy Cover or optional QuickCool cover with cool-to-the-touch fibers
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Snow Max
Breathe Memory Foam
Zoned Support™, Zoned Support™ Max, and Casper Core foam base
Individually pocketed springs
Six aluminum graphite bands and more phase-change material
QuickCool knit cover
Fire-resistant materials, largely fibers such as rayon (general brand statement)
Safety labels, and what each one covers
A certification helps you decide when you know which foam and models it covers. Check its scope, not just its name.
CertiPUR-US®
Foam in Casper's foam lineup, including The One, Cloud One, and Snug
Tests foam for emissions (what it gives off), content, and durability. It does not cover the whole mattress.
What these labels do and don't prove
Marketing seals are not the same as published lab testing.
Our safety page explains law tags, foam and fabric labels, and what each one means.
Chapter 11
Where can you try and buy the mattresses?
Why this matters to you: Casper mattresses are sold online, in retail stores, and through third-party retailers. Choose the route that suits how you shop.
Casper stores offer an in-person shopping option. Casper.com, Costco, and Amazon are other places to buy.
Where it sells: Casper.com, Casper retail stores across the U.S., Costco, and Amazon
Chapter 12
Casper vs. other mattress brands
Why this matters to you: Match each rival with its Casper model before using the price gap to choose. This keeps the comparison tied to the bed you may buy.
IKEA VALEVÅG is the lower-cost rival to The One. Saatva Classic offers three firmness levels, while Dream is medium. Check the Casper model on each card before weighing its price gap.
Each card pairs a rival with one Casper model. Its listed price gap applies to that pair, not to the whole Casper lineup. A price shows the cost, not whether the feel suits you. Check the bed style and firmness details before you choose.
Saatva Classic by Saatva, Queen
For couples with different firmness preferences
Saatva Classic by Saatva$2,229 (+$734)
Luxury innerspring; 11.5 in; Luxury Firm (5 to 7/10)
Why choose over Casper: According to Saatva, Luxury Firm suits couples with different firmness preferences.
I
IKEA VALEVÅG pocket spring mattress, firm/white, Queen
Firm feel
IKEA VALEVÅG pocket spring mattress, firm/white$399 (-$500)
9.5 inches; Firm
Why choose over Casper: Choose IKEA VALEVÅG for pocket springs and 5 comfort zones, rather than The One's all-foam build.
Mattress brands change prices and trial terms often, so recheck before you buy.
Quick Answers
Quick Answers Before You Buy
These quick answers cover safety, setup, support, and buying rules that may affect your choice.
Check the frame, allow time for full expansion, and read return terms before deciding.
Safety and materials
Do Casper mattresses contain fiberglass?
All new Casper models are fiberglass-free, the brand says.
Buying and policies
How long does it take for Casper mattresses to expand?
Foam and hybrid mattresses may take up to 48 hours to fully expand. Snow mattresses may take up to 72 hours to fully expand.
What kinds of bed frames are compatible with Casper mattresses?
Use a firm, solid surface, such as a Casper foundation, platform, or adjustable bed frame. For slats, choose flat wooden slats no more than 4 inches apart. Box springs void the warranty.
How long will my Casper mattress last?
Casper says its mattresses provide lasting support for a full decade.
How long is Casper’s mattress trial?
The trial is 100 nights from delivery, with the first 30 nights as the required adjustment period. Final Sale or Clearance products cannot be returned or exchanged. Bundle products cannot be returned separately unless otherwise specified.
Does Casper offer free mattress returns?
Yes. Returns are free within the trial after the required adjustment period. The exclusions above still apply.
Casper prices checked Oct 15, 2026. Recheck before buying.
How we research: we read each brand's own pages, look for outside testers and owner reviews, and date every fact. We do not test beds ourselves. Read our method.
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