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Casper vs. Purple: 13 Mattresses Objectively Compared

Derek Hales

Updated

Casper

Casper Dream Max Hybrid 2
8.49 Average Score

Purple

Purple Restore Plus 3
8.31 Average Score
Tested With Scoring System 1.3
FactorCasperPurple
Best OverallCasper Dream MaxPurple
Performance – High8.738.88
Performance – Low7.887.58
Price – High$2,995$3,699
Price – Low$799$999
Firmness – SoftestSoft (4.5)Medium (5)
Firmness – FirmestMedium-Firm (6)Medium-Firm (6.5)
Trial Period100 nights100 nights
Warranty10 years10 years
Shipping$0$0
Returns$0$150
Country of OriginUSAUSA
Mattress Types AvailableMemory Foam
Foam
Hybrid
Memory Foam Hybrid
Specialty

Our Verdict

Casper and Purple are two of the most well-known mattress brands to have come out of the direct-to-consumer market over 10 years ago. At this point, they have expanded their product lines and have mattresses in countless brick-and-morter stores across the US and beyond. Today, we are comparing the models available on both of their websites.

Casper started with their all-foam Casper Original model, but their lineup now includes foam, memory foam, hybrids, and memory foam hybrids. Purple, on the other hand, is known for their patented hyper elastic purple grid layer. We consider this a specialty mattress type, and they come in all-foam (plus grid) and coil unit (plus grid) configurations.

The vast majority of both Casper and Purple mattresses have a medium (5) to medium-firm feel (6). Casper has one softer mattress that is a 4.5, and this is the softest among the two brands. Purple has one with a 6.5 firmness rating, which is the firmest model from either brand.

From our performance tests and analysis, Casper mattresses earned an average score of 8.49, and Purple mattresses averaged a score of 8.31. For reference, the average mattress score based on 390+ models tested to date is 8.53.

From a pricing perspective, both brands are more expensive than average. Casper’s average queen-size model costs $1,771, and Purple’s average is $2,199. For reference, the average queen-size price from the 390+ reviewed to date is $1,489.

Ultimately, we found that both brands have mattresses with fantastic performance in key areas, but the value to consumers is lessened by the higher price tag. Though both Purple, with their Purple Original Mattress ($1,499), and Casper, with the Casper Cloud One ($999), have affordable models with above-average performance.

In This Comparison
Which Mattress Should You Buy? | Compare the Mattresses | Performance Tests

Which Mattress Should You Buy?

The mattresses earning the title for “best overall” from each brand have the highest overall performance. Overall performance is determined by scores from 8 different categories, including cooling, motion transfer, response time, edge support, sex performance, pressure relief, off-gassing, and company.

Sinkage and bounce are also taken into consideration, but they are not direct scoring factors.

Between Casper and Purple, the two top recommendations are Casper Dream Max and Purple.

Best Casper

Casper Dream Max

Casper Dream Max Hybrid Material Layers
8.73 Overall Score
9.0 Cooling
8.1 Motion Transfer
9.7 Response Time
8.4 Edge Support
9.7 Sex
9.0 Pressure Relief
4.7 Off-Gassing
9.0 Company

Type: Hybrid
Firmness:
 Soft (4.5)

The Casper Dream Max is a 13.5″ hybrid mattress with 3 distinct layers of poly foam, pocketed coils, and a support foam base. It has a soft feel with deep sinkage and very high bounce. Its 8.73 performance score ranks it in the top 43% of all 390+ mattresses tested to date. Its price is $2,470, which is 66% ($978) more expensive than the average mattress. It excels in sex performance and overall ease of movement (response time and high bounce). It is a great option for sleepers of all sleeping positions and most body weights.

Read Review

Best Purple

Purple

Purple Original Material Layers
8.88 Overall Score
10 Cooling
10 Motion Transfer
10 Response Time
5.1 Edge Support
8.8 Sex
9.0 Pressure Relief
8.9 Off-Gassing
7.4 Company

Type: Specialty
Firmness:
 Medium (5)

The Purple is a 9.5″ specialty mattress with three layers that include a mix of poly foam and the hyper-elastic Purple grid. It has a medium feel with moderate sinkage and very high bounce. This mattress performs in the top 28% of all mattresses to date, with perfect scores for cooling, motion transfer, and fast material response time. Purple also costs 7% less than the average mattress, passing a little over $100 of savings onto sleepers. For a high-quality medium mattress with high bounce, Purple may be the best bed of the bunch.

Read Review

Both the Casper Dream Max and Purple represent the best-performing mattresses from each brand, but they are quite different. Most notably, their price is roughly $1,000 apart. The Purple is $1,499 for a queen, while the Casper Dream Max is $2,470.

The Casper Dream Max (8.73) also has a slightly lower performance score compared to Purple (8.88). It has less favorable scores in Cooling, Motion Transfer, Response Time, and Off-Gassing. But one area where the Dream Max has a tremendous advantage over Purple is in edge support. It’s also better for sex.

Beyond objective performance, the feel of the two mattresses couldn’t be more different. Purple uses its patented Purple Grid comfort layer, giving the mattress a bit of a floating feel and a medium feel (5 out of 10). The Dream Max is a touch softer (4.5 out of 10 firmness) and offers much deeper sinkage that creates an enveloping sensation.

Finally, the Dream Max has four extra inches of material than the Purple mattress. Heavier-weighted sleepers would most likely benefit from the 13.5″ design from the Dream Max over Purple’s 9.5″ design.

Overall, the two mattresses offer similar levels of pressure relief and offer high levels of bounce and responsiveness. Choosing between these two will come down to the other areas of performance, in which Purple mostly excels over Casper, and one’s preference for poly foam over the patented elastic grid.

Best Mattress by Category

Before we get into the gritty details, let’s honor some specific mattresses first. The mattresses featured below performed exceptionally well when considering each individual category listed.

Best ForCasperPurple
OverallCasper Dream MaxPurple
Side SleepersCasper Dream MaxPurple
Stomach or Back SleepersCasper DreamPurple Restore Plus
Heavy PeopleCasper DreamPurple Restore Plus
CoolingCasper SnowPurple
AffordableCasper OnePurple Flex
Back PainCasper DreamPurple Restore Plus
SexCasper Dream MaxPurple Restore Plus
Soft MattressCasper Dream MaxN/A
Medium-Firm MattressCasper DreamPurple Plus
Firm MattressN/AN/A

Compare the Mattresses

The table below shows the overall performance score of every mattress we’ve tested from each brand. In total, 13 mattresses were tested for this comparison.

13

Mattresses Tested
In Comparison

43

Data Points Tested
On Each Mattress

6

In-Depth Mattress Analyses

After comparing 6 Casper mattresses, the brand average score is 8.49. After comparing 7 Purple mattresses, the brand average is 8.31.

Between the two, Casper has a higher performance and has a lower average price. The average price for a Casper mattress is $1,771, and the average price for a Purple mattress is $2,199.

All Casper Mattresses Tested

Casper MattressesScoreMattress TypeRead ReviewCheck Price
Casper One7.88FoamRead ReviewCheck Price
Casper Cloud One8.70Memory FoamRead ReviewCheck Price
Casper Dream8.68HybridRead ReviewCheck Price
Casper Dream Max8.73HybridRead ReviewCheck Price
Casper Snow8.56Memory Foam HybridRead ReviewCheck Price
Casper Snow Max8.38Memory Foam HybridRead ReviewCheck Price

All Purple Mattresses Tested

Purple MattressesScoreMattress TypeRead ReviewCheck Price
Purple8.88SpecialtyRead ReviewCheck Price
Purple Flex7.58SpecialtyRead ReviewCheck Price
Purple Plus8.38SpecialtyRead ReviewCheck Price
Purple Renew8.14SpecialtyRead ReviewCheck Price
Purple Restore8.16SpecialtyRead ReviewCheck Price
Purple Restore Plus8.73SpecialtyRead ReviewCheck Price
Purple Restore Premier8.32SpecialtyRead ReviewCheck Price

Moving on, let’s talk about specific performance categories. Depending on what factors are most important to you, individual mattresses may rise above others. The table below looks at 10 testing categories and highlights the top-performing mattresses in those particular tests.

FactorWinnerScore
Best OverallPurple8.88
Best CoolingCasper Snow, Casper Snow Max, Purple10
Most SinkageCasper Snow Max3.05″
Least SinkagePurple Flex1.66″
Lowest Motion TransferPurple10
Fastest Response TimePurple, Purple Flex, Purple Plus, Purple Renew, Purple Restore, Purple Restore Plus, Purple Restore Premier10
Most BouncePurple Restore14.42″
Least BounceCasper Snow Max6.13″
Best Edge SupportPurple Restore Plus10
Best for SexPurple Restore Plus9.9
Best Pressure ReliefCasper Snow Max10
Least Off-GassingPurple, Purple Flex8.9
Best CompanyCasper9

Firmness

Looking at all available mattresses we’ve tested, Casper ranges in firmness from 4.5 to 6 out of 10 and Purple mattresses range from 5 to 6.5 out of 10.

Both brands have a fairly narrow range of firmness options. Where we often see mattress companies offer at least one especially soft (4 out of 10) option and one especially firm (7 out of 10) option, the Casper and Purple models all range between 4.5 and 6.5.

The softest option between the brands is the Casper Dream Max at a 4.5 out of 10. The firmest option available is the Purple Flex at a 6.5 out of 10.

Check the table below to see the details of each mattress.

FirmnessRatingFeel
Casper One6Medium-Firm
Casper Cloud One6Medium-Firm
Casper Dream6Medium-Firm
Casper Dream Max4.5Soft
Casper Snow5Medium
Casper Snow Max5Medium
Purple5Medium
Purple Flex6.5Medium-Firm
Purple Plus6Medium-Firm
Purple Renew6Medium-Firm
Purple Restore5Medium
Purple Restore Plus5Medium
Purple Restore Premier6Medium-Firm

Not sure which firmness you need? Your ideal mattress firmness depends on two major factors—sleeping position and body weight. With the right firmness, your body and spine will maintain proper alignment when sleeping.

What Firmness Is Right For You2

Lightweight sleepers or those who sleep on their side tend to need a softer mattress. By comparison, heavier sleepers or those who sleep on their back or stomach tend to need more support and a firmer feel.

Performance Tests

Below, we have a deep-dive comparison on 6 popular mattresses — 3 from Casper and 3 from Purple.

Casper Mattresses

  • Casper One
  • Casper Dream
  • Casper Snow

Purple Mattresses

  • Purple
  • Purple Restore Plus
  • Purple Restore Premier

The table below shows overall scores as well as scores from the individual testing categories.

FactorCasper OneCasper DreamCasper SnowPurplePurple Restore PlusPurple Restore Premier
Overall Score7.888.688.568.888.738.32
Cooling8.09.010109.09.0
Motion Transfer8.08.08.7107.26.7
Response9.99.95.0101010
Edge Support8.28.99.45.1109.9
Sex8.39.18.98.89.98.8
Pressure Relief6.08.09.09.09.09.0
Off-Gassing6.77.84.48.97.22.8
Company9.09.09.07.47.07.0

This second table shows the data from each test we analyze. We use this data to compare each mattress to others within the brand as well as to compare with over 380+ mattresses we’ve tested to date.

FactorCasper OneCasper DreamCasper SnowPurplePurple Restore PlusPurple Restore Premier
Price (Queen)$799$1,420$1,945$1,499$2,999$3,699
CoolingGoodExcellentOutstandingOutstandingExcellentExcellent
Sinkage – Depth1.77″1.89″2.36″2.24″1.99″1.82″
Sinkage – FeelMinimalMinimalDeepModerateMinimalMinimal
Motion Transfer – Acceleration9.42 m/s²9.48 m/s²7.95 m/s²2.23 m/s²11.27 m/s²12.36 m/s²
Response Time – Mostly Recovered0.2 sec.0.2 sec.2.8 sec.0.2 sec.0.2 sec.0.2 sec.
Response Time – Fully Recovered0.4 sec.0.4 sec.5.1 sec.0.3 sec.0.3 sec.0.3 sec.
Bounce – Height8.77″10.73″9.54″12.79″12.20″9.46″
Bounce – FeelModerateHighModerateVery HighVery HighModerate
Edge Support – Sitting3.50″4.00″3.25″7.75″2.75″3.25″
Edge Support – LyingFairExcellentExcellentMediocreOutstandingOutstanding
Comfort Layer Thickness3.00″3.00″3.00″5.50″5.00″3.00″
Mattress Thickness10.00″11.50″11.50″9.50″13.00″13.00″
Off-Gassing – SmellStrongStrongStrongStrongStrongStrong
Off-Gassing – Days12 days8 days20 days4 days10 days26 days
Trial100 nights100 nights100 nights100 nights100 nights100 nights
Warranty10 years10 years10 years10 years10 years10 years

Cooling Test

When it comes to cooling performance, Purple takes the win by a small margin.

The 3 Purple models averaged a cooling performance score of 9.3. The 3 Casper models averaged a score of 9.0.

Check out the table below to see how each mattress compares regarding cooling.

Cooling TestScoreBaselineMax. Temp.Ending Temp.
Casper One8.073.1°89.6°79.7°
Casper Dream9.075.0°90.0°79.7°
Casper Snow1073.8°88.1°78.2°
Purple1079.7°89.2°84.0°
Purple Restore Plus9.081.7°91.7°84.7°
Purple Restore Premier9.083.0°91.3°86.2°
  • Baseline Temperature – the temperature of the mattress before anyone lies on it
  • Maximum Temperature (0 minute) – the temperature of the mattress after lying on it for 15 minutes
  • Ending Temperature (after 5 minutes) – the temperature of the mattress after being lied upon and having no one on it for 5 minutes

Below, you can watch a video of how the heat dissipates on each mattress during our cooling test. For this test, we lie on the mattress for 15 minutes, get off the mattress, and then take periodic surface-level temperature measurements.

Casper One

Purple

Casper Dream

Purple Restore Plus

Casper Snow

Purple Restore Premier

The average cooling score across all mattresses tested to date is 8.6.

By this measure, both brands generally exceed the average performance. However, the Casper One performed below this benchmark at an 8.0. All other models reached an excellent cooling rating marked by a score of 9.0 or higher.

The best mattresses for cooling performance are the Casper Snow and the Purple Original. In the case of the Purple mattress, its open-celled grid and thin overall design (9.5″) are both huge benefits to breathability and lower heat retention.

Purple regular elastic polymer
Purple Original Grid Design

In Casper Snow’s case, its design includes both phase change fibers in its cover and phase change spray material in the middle layers. Furthermore, they included heat-deleting bands that run through the middle of the mattress. Theoretically, these bands pull heat away from the surface and increase cooling.

Both Casper and Purple mattresses have great cooling. However, with more foam material comes more cooling issues, if not mitigated by higher-end materials, as we saw in the Casper Snow. Ultimately, Purple has the advantage with its patented elastic grid layer.

Sinkage Test

Sinkage is a preferential factor that helps inform the type of feel one can expect from a mattress. In the case of Casper and Purple, they both offer similar levels of sinkage.

Both brands lean towards more minimal levels of sinkage and create more of a “floating on top of” as opposed to “lying down in” feeling. Purple’s average sinkage measurement is 2.02″ and Casper’s is 2.01″, among the 6 mattresses in this popular model comparison.

However, they each have one model that offers moderate to deep sinkage.

Check out the table below to see how each mattress compares regarding sinkage.

Sinkage TestSinkage FeelSinkage Depth
Casper OneMinimal1.77″
Casper DreamMinimal1.89″
Casper SnowDeep2.36″
PurpleModerate2.24″
Purple Restore PlusMinimal1.99″
Purple Restore PremierMinimal1.82″

The level of sinkage for each mattress is documented in the images below.

Casper One

Casper One Sinkage Test

Purple

Purple Original Sinkage Test

Casper Dream

Casper Dream Sinkage Test

Purple Restore Plus

Purple Restore Plus Sinkage Test

Casper Snow

Casper Snow Hybrid Sinkage Test

Purple Restore Premier

Purple Restore Premier Sinkage Test

The average sinkage depth across all mattresses tested to date is 2.23″.

Back and stomach sleepers usually prefer less sinkage, which better maintains proper alignment of their spine. The Casper One (1.77″), Casper Dream (1.89″), Purple Restore Plus (1.99″), and Purple Restore Premier (1.82″) all have less sinkage than average and would be best suited for back and stomach positions.

Generally, side sleepers enjoy a deeper level of sinkage, as that typically translates to better pressure relief and contour. For deeper sinkage, opt for the Casper Snow (2.36″) or the Purple (2.24″).

Motion Transfer Test

When it comes to motion transfer, a measure of the potential for one sleeper to wake another by moving on the mattress, we see that Casper is better on average, yet Purple has the better individual model.

On average, the Casper models earned a motion transfer score of 8.2, while Purple earned an average score of 8.0.

Check out the table below to see how each mattress compares regarding motion transfer.

Motion Transfer TestScoreAcc. Range
Casper One8.09.42 m/s²
Casper Dream8.09.48 m/s²
Casper Snow8.77.95 m/s²
Purple102.23 m/s²
Purple Restore Plus7.211.27 m/s²
Purple Restore Premier6.712.36 m/s²

The level of motion transfer on each mattress is also documented in the videos below.

Casper One

Purple

Casper Dream

Purple Restore Plus

Casper Snow

Purple Restore Premier

The average motion transfer score across all mattresses tested to date is 8.2. This score corresponds with an average acceleration range of 8.79 m/s².

Therefore, as a brand, Casper is right about average. However, Purple mattress has the best overall mattress with a 10 out of 10 score and an astonishingly low motion transfer measurement of 2.23 m/s²! The elastic grid, combined with the foam layers below, makes for exceptional motion isolation.

Purple Restore Plus Pressing Top Layers
Purple Restore Plus Pressing Top Layers

However, the other two Purple models are among the worst in this comparison. The inclusion of a coil unit creates an interaction with the elastic grid that is detrimental to isolating motion.

Casper’s best mattress scored an 8.7 with a lower-than-average acceleration range of 7.95 m/s². While it also includes a coil unit, the 3″ of dense memory foam does a good job dispersing energy before it can shoot through the coils.

In the end, the Purple hybrids perform worse than average when it comes to motion transfer, and couples may want to think twice if they are easily disturbed by movements while they sleep. Casper mattresses are generally no better but no worse than average.

Response Test

When it comes to response time, a measure of the speed at which the top layers recover from compression, Purple mattresses are unquestionably faster than Casper, on average.

Purple averaged a response time score of 10/10. Casper is absolutely no slouch, as is clear when we look at the individual performance scores.

Check out the table below to see how each mattress compares regarding response.

Response TestScoreMostly RecoveredCompletely Recovered
Casper One9.90.2 seconds0.4 seconds
Casper Dream9.90.2 seconds0.4 seconds
Casper Snow5.02.8 seconds5.1 seconds
Purple100.2 seconds0.3 seconds
Purple Restore Plus100.2 seconds0.3 seconds
Purple Restore Premier100.2 seconds0.3 seconds

The level of responsiveness for each mattress is documented in the videos below.

Casper One

Purple

Casper Dream

Purple Restore Plus

Casper Snow

Purple Restore Premier

The average response score across all mattresses tested to date is 8.8.

The Purple, Purple Restore Plus, and Purple Restore Premier are all tied with the maximum score for response time, as they recovered as quickly as is possible for us to measure. This is effectively instant.

The Casper One and Casper Dream are also lightning quick to recover back to shape, but they have just a little extra time to fully reform back to neutral. However, the Casper Snow’s memory foam layer is fundamentally a different class of foam, and it is among the slowest response time measurements we’ve ever seen.

In the end, Purple is ultra-responsive across the board, while Casper models vary, based on the type of foam used in the comfort layer (possibly correlated with the higher tiers).

Bounce Test

When it comes to bounce, Purple takes the win once again. This is a preferential factor, but bounce plays a large role in how lively or dead a mattress can feel while moving around.

The 3 Purple models averaged a bounce height of 11.5″, which can be described as high.

Casper models were more in the moderate range, but they still achieved an average height of 9.7″.

Check out the table below to see how each mattress compares regarding bounce.

Bounce TestBounce FeelBounce Height
Casper OneModerate8.77″
Casper DreamHigh10.73″
Casper SnowModerate9.54″
PurpleVery High12.79″
Purple Restore PlusVery High12.20″
Purple Restore PremierModerate9.46″

The level of bounce for each mattress is documented in the videos below.

Casper One

Purple

Casper Dream

Purple Restore Plus

Casper Snow

Purple Restore Premier

The average bounce across all mattresses tested to date is 8.77″.

Mattresses with more bounce than average include the Casper Dream (10.73″), Casper Snow (9.54″), Purple (12.79″), Purple Restore Plus (12.2″), and Purple Restore Premier (9.46″).

Mattresses with less or equal bounce than average include the Casper One (8.77″). The memory foam used in this lower-level model doesn’t quite reach the same heights as the others; however, it is far from creating issues for general movement.

Casper One Squeezing Materials
Casper One Squeezing Foam Layers

My ideal bounce range is between 8-12″, but I do like to see somewhere between 10″ or higher when it comes to sex performance.

Mattresses with more bounce are better for ease of movement and increased sex performance. However, higher bounce also typically creates a higher level of motion transfer. So there are pros and cons when it comes to bounce.

Edge Support Test

For edge support, we see a noticeable difference between Casper and Purple. Here, Casper takes the win, but only on average.

On average, the 3 popular Casper models earned a combined edge support score of 8.8, whereas the Purple models only earned an 8.3.

When we look at individual performance, we see that two of the Purple models outperformed all the rest.

Check out the table below to see how each mattress compares regarding edge support.

Edge Support TestScoreSitting SinkageLying Support
Casper One8.23.50″Fair
Casper Dream8.94.00″Excellent
Casper Snow9.43.25″Excellent
Purple5.17.75″Mediocre
Purple Restore Plus102.75″Outstanding
Purple Restore Premier9.93.25″Outstanding

The level of edge support is documented in the images below.

Casper One

Casper One Edge Support Test

Purple

Purple Original Edge Support Test

Casper Dream

Casper Dream Edge Support Test

Purple Restore Plus

Purple Restore Plus Edge Support Test

Casper Snow

Casper Snow Hybrid Edge Support Test

Purple Restore Premier

Purple Restore Premier Edge Support Test

The average edge support score across all mattresses tested to date is 8.7.

The Purple Restore Plus and Purple Restore Premium both earned near-perfect edge support scores (10 and 9.9). This is another instance where we see extreme variation in performance between the hybrid purple models and the all-foam version. The models that use coil units are also reinforced by firm support foam that surrounds the perimeter. This reinforced edge is incredibly robust.

Purple Restore Plus Material Corner
Purple Restore Plus Material Corner

The Purple models also use a separate perimeter foam around their elastic grid. Despite this, the Purple Original saw a near-total collapse at the edge and earned one of the lowest scores we’ve seen to date.

For Casper, the Casper Snow model uses a similar reinforced perimeter foam. We see slightly more compression, likely due to its use of memory foam over the support foam in the perimeter of the Purple mattresses.

Ultimately, both brands do a fantastic job with edge support, but we see variation from each based on pricing tier. If you want top-tier edge support, you’ll have to pay for the higher tiers.

Sex Test

When it comes to sex performance, we use a weighted formula that includes 5 different factors – some we’ve already discussed.

Bounce and edge support are among the heaviest weighted factors. Both brands generally performed well in these areas, so we see fairly close sex scores between them. However, Purple takes the win for having the higher average score.

The 3 Purple models earned an average sex performance score of 9.2, with a range between 8.8 to 9.9.

The Casper models earned an average sex score of 8.8, with a range from 8.3 to 9.1.

Check out the table below to see how each mattress compares regarding sex.

Sex TestSex ScoreBounceEdge SupportNoisePressure ReliefCooling
Casper One8.38.09.4106.08.0
Casper Dream9.19.28.8108.09.0
Casper Snow8.98.59.7109.010
Purple8.8104.1109.010
Purple Restore Plus9.91010109.09.0
Purple Restore Premier8.88.49.7109.09.0

The average sex score across all mattresses tested to date is 8.2. By this measure, all 6 mattresses among Casper and Purple perform above-average for sex.

The very best mattress for sex is the Purple Restore Plus. The hyper-elastic grid combined with the pocketed coils makes for an extremely lively, bouncy surface that is also safe for use at the edge.

Casper Dream Sitting
Casper Dream Sitting

From Casper, the Casper Dream received the best score for sex for much of the same reasons. It just didn’t quite reach the same heights as the Restore Plus.

In the end, we can say that both Casper and Purple are fantastic mattresses for amorous activities, AKA the dance without pants.

Pressure Relief Test

When it comes to pressure relief, we look for a measure of comfort, support, and the potential for pressure point buildup. Here, we see Purple has a massive win over Casper, generally speaking.

Among the mattresses in this 3v3 comparison, the Purple models averaged a pressure relief score of 9.0, where the Caspers earned a 7.7

Check out the table below to see how each mattress compares regarding pressure relief.

Pressure Relief TestScoreComfort LayerSupport Layer
Casper One6.03.00″7.00″
Casper Dream8.03.00″8.50″
Casper Snow9.03.00″8.50″
Purple9.05.50″4.00″
Purple Restore Plus9.05.00″8.00″
Purple Restore Premier9.03.00″10.00″

The average pressure relief score across all mattresses tested to date is 8.6.

While none of the Purple models managed to reach an outstanding rating, the Purple, Purple Restore Plus, and Purple Restore Premier have consistently above-average pressure relief.

The Casper Snow managed to reach this same score of 9.0, and it is the best among the 3 analyzed in this deep dive. The Snow uses a solid 3″ of dense memory foam that is demonstrably of better quality than less expensive Casper models, like the Casper One.

The materials included in each mattress are documented in the images below.

Casper One

Casper One Material Layers

Purple

Purple Original Material Layers

Casper Dream

Casper Dream Material Layers

Purple Restore Plus

Purple Restore Plus Material Layers E1709836056878

Casper Snow

Casper Snow Hybrid Material Layers

Purple Restore Premier

Purple Restore Premier Material Layers

Typically, more material, especially in the comfort layer, is better for pressure relief. However, the Purple mattress is an exception to this. At only 9.5″ of total thickness, it achieves an excellent level of performance.

It should be noted that heavier-weighted sleepers may not have the same high-level experience, as they’re more likely to push through the special Purple grid and make contact with the support foam below.

Purple regular side sleeping
Purple Original Side Sleeping

The Casper models aren’t the thickest designs either. However, the quality of the foam does seem to increase at every pricing tier (of which these 3 models represent distinct levels, low, medium, and high). The top end of their lineup manages to reach fantastic pressure relief.

In conclusion, the Purple mattresses, with the hyper-elastic grid, achieve better performance than average. However, we find they hit a limit before reaching the highest possible pressure relief. Heavier sleepers should also opt for the Restore Plus or Restore Premier to ensure ideal relief.

Off-Gassing Test

Off-gassing is our objective measurement for how long an unboxed/delivered mattress takes to dissipate any lingering smells. Here, Casper and Purple are equally mediocre.

Check out the table below to see how each mattress compares regarding off-gassing.

Off-Gassing TestScoreInitial SmellSmell Duration
Casper One6.7Strong12 days
Casper Dream7.8Strong8 days
Casper Snow4.4Strong20 days
Purple8.9Strong4 days
Purple Restore Plus7.2Strong10 days
Purple Restore Premier2.8Strong26 days

The average smell duration across all mattresses tested to date is 6.8 days.

On average, both brands earned an off-gassing score of 6.3. The 3 Casper models had an average smell duration of 13.3 days, with a range of 8 to 20 days.

The Purple mattresses had the same average smell duration, with a range from 4 to 26 days.

Suffice it to say, a sleeper can expect to wait about a week for their mattress to stop smelling, but the majority of Casper and Purple mattresses will take more than that. In some cases, they will take 20 days or more.

The only model that managed to dissipate odors quicker than average was the Purple Original, with a smell duration of only 4 days.

Casper Dream Open Cover
Casper Dream Open Cover

No matter how long it takes, once it’s gone, it will never be an issue again. However, it can be bothersome for those trying to enjoy their new mattress purchase to wait excessive amounts of time.

If you’re someone especially sensitive to synthetic odors, the Purple Original or the Casper Dream will be your best bets.

Company

Finally, we’ve come to comparing the various company policies in terms of favorability for the consumer.

Casper offers a 100-night trial period, a 10-year warranty, free shipping, and free returns. The trial and warranty periods could be a little longer, based on other brands we’ve seen, but this earned them a solid 9.0 score.

Purple offers a 100-night trial period, a 10-year warranty, and free shipping, but not free returns. In fact, their return fee depends on the line of mattress, with the Restore line being $250 (it can actually get up to $350 for the Rejuvenation line, but we’ve left it off the chart since we haven’t reviewed one of those yet).

The fee of $250 is among the highest we’ve seen to date.

Check out the table below to see how each mattress compares regarding company policies.

CompanyCasperPurple
Score9.07.2
Trial Period100 nights100 nights
Warranty10 years10 years
Shipping$0$0
Returns$0$150-$350
Country of OriginUSAUSA

To date, we have tested 391+ mattresses from 103 different brands. The average trial length is 175 nights and the average warranty is 14 years, excluding 42% of mattresses that offer lifetime warranties.

On the whole, both Casper and Purple offer fairly generous company policies to the consumer, with the exception of Purple tanking their score with a high return fee. For this reason, Casper takes the win for company score.

Casper vs. Purple Testing Data

Mattress NameOverall ScoreCooling ScoreMotion Transfer ScoreResponse Time ScoreEdge Support ScoreSex ScorePressure Relief ScoreOff-Gassing ScoreCompany ScoreTypeThicknessFirmnessSinkageBounceTrial (days)Ships ToPrice (Queen)Read Review
Purple8.881010105.18.89.08.97.4Specialty9.50"Medium2.24"12.79"100 nightsUSA, Canada$1,499Review
Casper Dream Max8.739.08.19.78.49.79.04.79.0Hybrid13.50"Soft2.41"12.73"100 nightsUSA$2,470Review
Purple Restore Plus8.739.07.210109.99.07.27.0Specialty13.00"Medium1.99"12.20"100 nightsUSA, Canada$2,999Review
Casper Cloud One8.79.09.09.68.27.89.05.89.0Memory Foam10.50"Medium-Firm2.46"7.62"100 nightsUSA$999Review
Casper Dream8.689.08.09.98.99.18.07.89.0Hybrid11.50"Medium-Firm1.89"10.73"100 nightsUSA$1,420Review
Casper Snow8.56108.75.09.48.99.04.49.0Memory Foam Hybrid11.50"Medium2.36"9.54"100 nightsUSA$1,945Review
Casper Snow Max8.38107.45.58.67.4104.49.0Memory Foam Hybrid13.50"Medium3.05"6.13"100 nightsUSA$2,995Review
Purple Plus8.389.07.0107.39.19.06.97.4Specialty11.00"Medium-Firm2.03"11.28"100 nightsUSA, Canada$1,899Review
Purple Restore Premier8.329.06.7109.98.89.02.87.0Specialty13.00"Medium-Firm1.82"9.46"100 nightsUSA, Canada$3,699Review
Purple Restore8.169.06.0108.99.68.06.17.0Specialty11.00"Medium1.90"14.42"100 nightsUSA, Canada$2,399Review
Purple Renew8.149.08.5107.07.97.08.67.4Specialty11.00"Medium-Firm1.98"8.87"100 nightsUSA$1,899Review
Casper One7.888.08.09.98.28.36.06.79.0Foam10.00"Medium-Firm1.77"8.77"100 nightsUSA$799Review
Purple Flex7.588.06.5107.19.16.08.97.4Specialty8.00"Medium-Firm1.66"11.29"100 nightsUSA, Canada$999Review

Disclosure – Derek Hales has a history with Casper that some may view as relevant to his reviews of Casper products. In 2016, Casper Sleep sued Derek Hales in federal court over his reviews of its products. In 2017, the lawsuit ended with a settlement. That was a long time ago and Casper is under different management now.  

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