Casper vs. Amerisleep Mattress Comparison

Casper Sleep launched in 2013, and began selling mattresses the following year. Casper currently offers three mattress models. The Casper and The Essential are constructed with memory foam comfort systems, while The Wave has layers of memory foam and blended latex in the comfort system.

Amerisleep was established in 2007. The company currently offers five memory foam mattress models, each of which has undergone a recent name change: the AS1 (formerly the Americana), the AS2 (formerly the Revere), the AS3 (formerly the Liberty), the AS4 (formerly the Colonial), and the AS5 (formerly the Independence). Although individual specifications vary, all five models feature memory foam comfort systems and polyfoam support cores.

Both Casper and Amerisleep have earned average to above-average customer satisfaction ratings. This page will compare both brands in terms of pricing, construction, and mattress performance, as well as company policies regarding shipping and delivery, returns, and warranty coverage.

Brand Summary

Pros of Casper mattresses include:

  • Multiple design and firmness options
  • Very good motion isolation
  • No noise
  • Free shipping and 100-night sleep trial

Pros of Amerisleep mattresses include:

  • Multiple design and firmness options
  • Very good motion isolation
  • No noise
  • Free shipping and 100-night sleep trial

You might not be suited for a Casper mattress if:

  • You are sensitive to off-gassing odors
  • Edge support is a top priority
  • You prefer to sleep on a higher-profile bed

You might not be suited for an Amerisleep mattress if:

  • Edge support is a top priority
  • You tend to sleep hot or warm
  • You have a limited mattress shopping budget

Sizes and Pricing

The table below lists current prices for all Casper and Amerisleep mattresses in each available size.

BrandMattress ModelTwinTwin XLFullQueenKingCalifornia King
CasperThe Essential$350$400$500$600$725$725
The Casper$595$645$895$995$1,195$1,195
The Wave$1,000$1,150$1,650$1,850$2,250$2,250

Mattress Construction

The next table features information about firmness, thickness, and material specifications for each Casper and Amerisleep mattress.

BrandMattress NameFirmness ThicknessSupport Core ComponentsComfort Layer ComponentsCover Components
CasperEssential7.5 (Firm)8 1/2″63 lbsHD PolyfoamUnspecified Knit Fabric
Casper5 (Medium)10″71 lbs5″ 1.8 PCF PolyfoamPolyester Blend
The Wave4.5 (Medium Soft)11 1/2″109 lbs5 1/2″ HD PolyfoamCotton Blend
AmerisleepAS17.5 (Firm)10″8″ 1.65 PCF Polyfoam2″ 4 PCF Memory Foam77% Polyester
21% Celliant
2% Spandex
AS26.5 (Medium Firm)12″3″ 1.65 PCF Polyfoam
7″ 1.8 PCF Polyfoam
2″ 4 PCF Memory Foam77% Polyester
21% Celliant
2% Spandex
AS35.5 (Medium)12″2″ 1.65 PCF Polyfoam
7″ 1.8 PCF Polyfoam
3″ 4 PCF Memory Foam77% Polyester
21% Celliant
2% Spandex
AS44.5 (Medium Soft)12″1″ 1.65 PCF Polyfoam
7″ 1.8 PCF Polyfoam
4″ 4 PCF Memory Foam77% Polyester
21% Celliant
2% Spandex
AS53.5 (Soft)14″2″ 1.65 PCF Polyfoam
7″ 1.8 PCF Polyfoam
3″ 4 PCF Memory Foam
2″ 3 PCF Polyfoam
77% Polyester
21% Celliant
2% Spandex
AS17.5 (Firm)10″8″ 1.65 PCF Polyfoam2″ 4 PCF Memory Foam77% Polyester
21% Celliant
2% Spandex

Shipping Information, Trial Period & Warranty

The next four tables compare Casper and Amerisleep based on different company services and policies. The first looks at the shipping and delivery policies of both companies.

Delivery feeFree shipping to the U.S. and CanadaFree shipping to the contiguous U.S.
Additional fees for Alaska, Hawaii, and international destinations
Where do they deliver?All 50 states and CanadaAll 50 states and Canada, Mexico, and other select international destinations
How is the mattress shipped?Compressed, vacuum-sealed, and shipped in a boxCompressed, vacuum-sealed, and shipped in a box
Estimated delivery time (from original order)2 to 5 business days3 to 5 business days
Online (The Casper only) (select models) customer ratingThe Casper has a current rating of 4.1; the other two Casper mattresses are not currently sold on Amazon.comThe following Amerisleep mattresses are listed on with customer ratings:
AS1/Americana (5.0)
AS2/Revere (5.0)
AS3/Liberty (4.3)
Brick-and-mortar availabilityCasper operates brick-and-mortar stores in:
San Francisco, CA
Costa Mesa, CA
Torrance, CA
Denver, CO
Aventura, FL
West Palm Beach, FL
Atlanta, GA
Chicago, IL
Oakbrook, IL
Chestnut Hill, MA
Bloomington, MN
Short Hills, NJ
New York, NY
White Plains, NY
Huntington Station, NY
King of Prussia, PA
Austin, TX
Amerisleep operates brick-and-mortar showrooms in four Arizona cities: Gilbert, Glendale, Scottsdale, and Tucson
Courier used for deliveryUPS GroundFedEx
White Glove delivery?
For an extra fee, some mattress sellers provide in-home assembly and packaging waste disposal
Casper offers White Glove delivery anywhere in the U.S.; this service includes in-home mattress assembly and packaging waste disposalAmerisleep does not offer White Glove delivery at this time
Old mattress removal?
For an extra fee, some mattress sellers will remove a customer’s old mattress during the delivery and transport it to a recycling facility or donation center
Casper offers old mattress removal with White Glove delivery for an additional chargeAmerisleep does not offer old mattress removal at this time

The next table includes information about the sleep trials and return policies of Casper and Amerisleep.

Sleep trial length
Most sleep trials last at least 60 nights
100 nights100 nights
Mandatory break-in period?
Some mattress sellers require mattress buyers to test out their mattress for a certain length of time before they can return or exchange it
None30 nights
Return charges
Some mattress companies require mattress owners to pay transportation and handling fees associated with their mattress return
Casper will cover all shipping and handling charges for the mattress returnAmerisleep will cover all shipping and handling charges for the mattress return
Exchanges offered?
Some mattress sellers allow customers to exchange their mattress for a different model or firmness during the sleep trial
Exchanges are not available at this timeMattress exchanges are available after 30 nights have elapsed
Full sleep trial available for customers?
In some cases, customers and others who do not buy their mattress directly from the brand will not qualify for the company’s sleep trial
Yes; customers are eligible for Casper’s 100-night sleep trialNo; customers who purchase their Amerisleep mattress from will qualify for that site’s standard 30-night sleep trial

The third table compares the product warranties of Casper and Amerisleep mattresses.


Warranty length10 years20 years
Nonprorated coverage
During nonprorated periods, mattress owners can have their defective mattress replaced without paying a percentage of the original product price
10 years10 years
Prorated charges
In most cases, prorated costs of replacing a mattress are calculated by multiplying a percentage of the original product price by the number of years of ownership
None; this warranty is entirely nonprorated50% of the original product price; this rate remains flat for the last 10 years
Transportation/handling charges
Some mattress companies hold owners responsible for paying shipping and handling fees associated with repairing or replacing a defective mattress
Owners cover shipping and handling costs for receiving a repaired or replacement mattress; Casper will cover shipping and handling costs for sending the mattress to the company facilityAmerisleep will cover shipping and handling costs during the nonprorated period, but customers must pay these charges during the prorated period
Foundational requirements
In many cases, a mattress seller will void an owner’s warranty if an adequate foundation is not used to support the mattress
Proper foundations include: a foundation and modern box spring with wooden slats that are no more than 4″ apart; a flat platform bed; and a slatted base made of wood with slats that are no more than 4″ apartProper foundations include a solid wood, non-spring, completely flat foundation or bed platform. A box spring is only allowed to be used with at least a three-quarter inch (0.75”) sheet of moisture-resistant plywood placed over the entire box spring. If you are using a slatted base, the slats must be no greater than three inches (3”) apart.’
Indentation depth
Most mattress sellers will only repair or replace indented mattresses if the sagging reaches a certain depth

The final table compares Casper and Amerisleep in terms of customer service and overall brand reputation.

Customer service rating (1-10)
This number is based on Tuck data
Better Business Bureau RatingA+A+
Company websitehttps://casper.com
Online customer chat?YesYes
Phone number1-888-498-0003 (Calls and texting available)1-888-811-5053
Company email addressOnline formOnline form
Social mediaFacebook

Mattress Performance Comparison

This next table compares Casper and Amerisleep mattresses based on performance factors like durability, motion isolation, edge support, and noise potential. All ratings are generated from authentic customer and owner experiences.

CategoryCriteriaCasper RatingAmerisleep RatingWhat Users Say
Customer SatisfactionBased on data collection, this is an overall customer sentiment regarding the X and Y mattresses.74% (The Wave)
72% (The Casper)
69% (The Essential)
82% (AS3)
75% (AS5)
73% (AS4)
71% (AS1)
69% (AS2)
Customer satisfaction with both Casper and Amerisleep mattresses varies by model, but the AS3 and AS5 have earned higher ratings than any of Casper’s current models.
Durability The average mattress will perform for at least seven years before it needs to be replacedFair (all models)Fair (All models)Amerisleep mattresses have durability that is on par with the average memory foam model, or roughly six years. Durability is questionable for Casper mattresses due to limited brand history, but it appears to be fair or better.
Motion IsolationFoam-based mattresses are designed to minimize motion and isolate it from other areas of the sleep surface, which can cut down on nighttime disruptions.Very Good (all models)Very Good (All models)Motion isolation is a strong point for both mattress brands, with many owners saying their bed absorbs and minimizes motion transfer to a significant extent.
Sex Foam-based mattresses are less responsive by design, and may not be as suitable for sex as innerspring or hybrid models.Fair (The Essential)
Good (The Casper and The Wave)
Fair (AS3, AS4, AS5)
Good (AS1, AS2)
Neither Casper nor Amerisleep mattresses are particularly responsive nor bouncy, but some may be more suitable for sex than others.
ConformingFoam-based mattresses conform closely to sleeper’s bodies, which can help align the spine, target pressure points, and alleviate back painFair (The Essential)
Very Good (The Casper and The Wave)
Good (AS1, AS2)
Very Good (AS3, AS4, AS5)


Apart from The Essential, AS1 and AS2, all current mattresses from Casper and Amerisleep offer exceptionally close conforming and above-average pressure relief.  
Temperature NeutralityFoam retains more body heat than other materials, and foam mattress owners often ‘sleep hot’ as a result.Good (The Essential)
Very Good (The Casper and The Wave)
Fair (All models)Amerisleep mattresses tend to sleep somewhat hot, and all three Casper models sleep cooler by comparison.
Off-gassingSome mattresses emit particles when they are unpackaged, accompanied by unpleasant ‘off-gassing’ smells that can last for days.Fair (The Casper and The Essential)
Good (The Wave)
Good (All models)Odor potential is somewhat high for The Casper and The Essential, but The Wave and all five Amerisleep mattresses very little off-gassing.
Edge SupportBecause of their construction, foam-based mattresses often provide little to no edge support and may sink prematurely in areas of the bed where people tend to sit.Fair (The Casper and The Wave)
Poor (The Essential)
Poor (All models)Edge support is a chief complaint among Amerisleep owners, as well as The Essential owners. The Casper and The Wave are somewhat sturdier around the edges.
NoiseFoam-based mattresses create little to no noise, due to their lack of springs, coils, and other metal componentsExcellent (all models)Excellent (All models)According to owners, all Casper and Amerisleep mattresses are virtually silent when bearing weight.
Ease of Moving and RotatingAll mattresses are relatively heavy when it comes to moving and rotating, but some are heavier and more unwieldy than others.  Very Good (The Casper and The Essential)
Fair (The Wave)
Fair (All models)The Casper and The Essential are exceptionally lightweight and fairly easy to move; The Wave and all five Amerisleep mattresses are much heavier by comparison.

Body weight and sleep position are two important factors to keep in mind when selecting a new mattress. The next table compares Casper and Amerisleep mattresses based on feedback from sleepers in different weight and sleep position groups.

Mattress BrandMattress Model/SeriesSleep PositionLightweight Sleeper Rating (Less than 130 lbs)Average Weight Sleeper Rating (130 to 230 lbs)Heavyweight Sleeper Rating (More than 230 lbs)
CasperThe EssentialSideFairGoodGood
The CasperSideVery GoodVery GoodGood
BackGoodVery GoodGood
The WaveSideVery GoodVery GoodGood
BackVery GoodGoodGood


Casper offers three mattresses that have earned customer satisfaction ratings: The Essential (69%) and The Casper (72%), which have memory foam comfort layers and polyfoam support cores; and The Wave (74%), which features memory foam and blended latex in the comfort system and a polyfoam support core. For more information about Casper, please visit our Casper Mattress Review page.

Amerisleep offers five memory foam mattresses that have earned customer satisfaction ratings: the AS1 (71%), AS2 (69%), AS3 (82%), AS4 (73%), and AS5 (75%). To learn more about Amerisleep, please visit our Amerisleep Mattress Reviews page.

Choosing the right mattress for you can be a difficult decision. strives to help mattress shoppers evaluate different models and decide which product best meets their needs and preferences. To learn more about how we compare products, please visit our Mattress Methodology page.