Casper

Helix

| Factor | Casper | Helix |
|---|---|---|
| Best Overall | Casper Dream Max | Helix Midnight Luxe |
| Performance – High | 8.73 | 9.43 |
| Performance – Low | 7.88 | 8.25 |
| Price – High | $2,995 | $2,999 |
| Price – Low | $649 | $999 |
| Firmness – Softest | Soft (4.5) | Soft (4) |
| Firmness – Firmest | Medium-Firm (6) | Firm (8) |
| Trial Period | 100 nights | 120 nights |
| Warranty | 10 years | Lifetime |
| Shipping | $0 | $0 |
| Returns | $0 | $0 |
| Country of Origin | USA | USA |
| Mattress Types Available | Memory Foam Foam Hybrid Memory Foam Hybrid | Hybrid Kids Plus-Sized |
Our Verdict
Between Casper and Helix, both brands are well-known in the mattress market and launched in 2014 and 2015, respectively.
Over time, the Helix lineup has expanded greatly while Casper’s collection remains smaller. Both companies offer hybrid mattresses. Casper also has memory foam hybrids and foam mattresses. Helix focuses on hybrids, plus-sized hybrids and thinner kids’ hybrids as well.
Regarding firmness, Casper has a range of 4.5 (soft) to 6 (medium-firm), while Helix’s range is quite a bit wider—4 (soft) to 8 (firm). If you want something soft or medium-firm, either brand could be well-suited, but for a firmer mattress, Helix is the better option.
Both brands have a similar average price, but Casper technically offers the lower sticker price. The average Casper mattress is $1,771 and the average Helix mattress is $1,893, a difference of only $122 between the two brands. Casper has pricing that’s more varied by model, while Helix mattresses are divided into three price tiers (Standard—$999, Luxe—$1,899, and Elite—$2,999).
Casper has an average performance score of 8.49 and Helix has an average score of 9.02. Helix earned a notably better average score across our battery of objective and data-driven tests.
When we consider Helix’s broad firmness range and 3 price tiers, it’s easy to see what makes Helix attractive to sleepers of all price points, sleeping positions, and firmness preferences. While Casper has a few wins, overall, the collection isn’t as all-encompassing as Helix.
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 Helix, the two top recommendations are Casper Dream Max and Helix Midnight Luxe.
Best Casper
Casper Dream Max

Type: Hybrid
Firmness: Soft (4.5)
The Casper Dream Max is a 13.5″ hybrid mattress with poly foam, pocketed coils, and a support foam base. It has a soft feel with deep sinkage and very high bounce. The performance is above-average compared to all mattresses tested to date and the price is 62% more expensive than the average hybrid mattress. While the price is steep, if you’re looking for a high-quality hybrid with a soft feel, the Dream Max is a great option. It has above-average cooling, response time, sex performance, pressure relief, and company score.
Best Helix
Helix Midnight Luxe

Type: Hybrid
Firmness: Medium-Firm (6)
The Helix Midnight Luxe is a 14″ hybrid mattress with poly foam, memory foam, pocketed coils, and a base support foam. It has a medium-firm feel with moderate sinkage and low bounce. The performance is well above average, ranking in the top 2% of all mattresses we’ve tested to date. Pricing is also a bit above average. The Midnight Luxe has fantastic cooling, a supportive edge, low motion transfer, and exceptional pressure relief. It has excellent overall performance, making it a great option for sleepers of all sleeping positions and most body weights.
Both the Casper Dream Max and Helix Midnight Luxe are mattresses I would recommend as high-quality hybrids, but they have very different feels. These two mattresses represent the best of the best from both Casper and Helix, but Casper’s does come in at a higher price point.
When we compare the mattresses side by side, there are a few notable differences. The biggest difference is firmness—Casper Dream Max has a soft feel (4.5 out of 10) while the Helix Midnight Luxe has a medium-firm feel (6 out of 10).
The Dream Max has deeper sinkage and significantly higher bounce as well.
Casper’s softer feel and deeper sinkage make it a good choice for exclusive side sleepers, while the Helix Midnight Luxe is a better choice all-around due to the medium-firm feel.
Looking at performance, the Midnight Luxe beats Casper in terms of cooling, motion transfer, edge support, pressure relief, and smell. However, Casper does take the edge for material response time and sex.
For most sleepers, Helix is the better choice. But if you prefer a softer feel the Casper can also be a good pick.
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 For | Casper | Helix |
|---|---|---|
| Overall | Casper Dream Max | Helix Midnight Luxe |
| Side Sleepers | Casper Dream Max | Helix Midnight Elite |
| Stomach or Back Sleepers | Casper Dream | Helix Dusk Luxe |
| Heavy People | Casper Dream | Helix Plus Elite |
| Cooling | Casper Snow | Helix Midnight Luxe |
| Affordable | Casper One | Helix Midnight |
| Back Pain | Casper Dream | Helix Midnight Luxe |
| Sex | Casper Dream Max | Helix Dusk |
| Soft Mattress | Casper Dream Max | Helix Moonlight Elite |
| Medium-Firm Mattress | Casper Dream | Helix Midnight Luxe |
| Firm Mattress | N/A | Helix Twilight Elite |
Compare the Mattresses
The table below shows the overall performance score of every mattress we’ve tested from each brand. In total, 28 mattresses were tested for this comparison.
28
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 22 Helix mattresses, the brand average is 9.02.
Between the two, Helix has a higher performance, but Casper has a lower average price. The average price for a Casper mattress is $1,771 and the average price for a Helix mattress is $1,893 (for a queen).
Overall, Casper offers mattresses at a lower price, but you are also getting a mattress with lower performance.
All Casper Mattresses Tested
| Casper Mattresses | Score | Mattress Type | Read Review | Check Price |
|---|---|---|---|---|
| Casper Cloud One | 8.70 | Memory Foam | Read Review | Check Price |
| Casper Dream | 8.68 | Hybrid | Read Review | Check Price |
| Casper Dream Max | 8.73 | Hybrid | Read Review | Check Price |
| Casper One | 7.88 | Foam | Read Review | Check Price |
| Casper Snow | 8.56 | Memory Foam Hybrid | Read Review | Check Price |
| Casper Snow Max | 8.38 | Memory Foam Hybrid | Read Review | Check Price |
All Helix Mattresses Tested
| Helix Mattresses | Score | Mattress Type | Read Review | Check Price |
|---|---|---|---|---|
| Helix Dawn | 8.66 | Hybrid | Read Review | Check Price |
| Helix Dawn Elite | 9.09 | Hybrid | Read Review | Check Price |
| Helix Dawn Luxe | 8.94 | Hybrid | Read Review | Check Price |
| Helix Dusk | 8.90 | Hybrid | Read Review | Check Price |
| Helix Dusk Elite | 9.18 | Hybrid | Read Review | Check Price |
| Helix Dusk Luxe | 9.32 | Hybrid | Read Review | Check Price |
| Helix Kids | 8.25 | Kids | Read Review | Check Price |
| Helix Midnight | 8.73 | Hybrid | Read Review | Check Price |
| Helix Midnight Elite | 9.21 | Hybrid | Read Review | Check Price |
| Helix Midnight Luxe | 9.43 | Hybrid | Read Review | Check Price |
| Helix Moonlight | 8.87 | Hybrid | Read Review | Check Price |
| Helix Moonlight Elite | 9.15 | Hybrid | Read Review | Check Price |
| Helix Moonlight Luxe | 9.05 | Hybrid | Read Review | Check Price |
| Helix Plus | 8.66 | Plus-Sized | Read Review | Check Price |
| Helix Plus Elite | 9.31 | Plus-Sized | Read Review | Check Price |
| Helix Plus Luxe | 9.14 | Plus-Sized | Read Review | Check Price |
| Helix Sunset | 9.13 | Hybrid | Read Review | Check Price |
| Helix Sunset Elite | 9.05 | Hybrid | Read Review | Check Price |
| Helix Sunset Luxe | 9.07 | Hybrid | Read Review | Check Price |
| Helix Twilight | 9.04 | Hybrid | Read Review | Check Price |
| Helix Twilight Elite | 9.22 | Hybrid | Read Review | Check Price |
| Helix Twilight Luxe | 9.00 | Hybrid | Read Review | Check 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.
| Factor | Winner | Score |
|---|---|---|
| Best Overall | Helix Midnight Luxe | 9.43 |
| Best Cooling | Casper Snow, Casper Snow Max, Helix Dawn Elite, Helix Dusk Elite, Helix Dusk Luxe, Helix Midnight Elite, Helix Midnight Luxe, Helix Moonlight Elite, Helix Plus Elite, Helix Sunset, Helix Sunset Elite, Helix Twilight Elite | 10 |
| Most Sinkage | Casper Snow Max | 3.05″ |
| Least Sinkage | Casper One | 1.77″ |
| Lowest Motion Transfer | Helix Dusk Luxe | 10 |
| Fastest Response Time | Casper Dream, Casper One | 9.9 |
| Most Bounce | Casper Dream Max | 12.73″ |
| Least Bounce | Casper Snow Max | 6.13″ |
| Best Edge Support | Helix Dusk Luxe, Helix Midnight Luxe, Helix Moonlight Luxe, Helix Plus Elite, Helix Plus Luxe, Helix Twilight, Helix Twilight Luxe | 10 |
| Best for Sex | Casper Dream Max | 9.7 |
| Best Pressure Relief | Casper Snow Max, Helix Dawn Elite, Helix Dusk Elite, Helix Midnight Elite, Helix Midnight Luxe, Helix Moonlight Elite, Helix Plus Elite, Helix Sunset, Helix Sunset Elite, Helix Sunset Luxe, Helix Twilight Elite | 10 |
| Least Off-Gassing | Helix Kids | 9.4 |
| Best Company | Helix | 9.4 |
Firmness
Looking at all available mattresses we’ve tested, Casper ranges in firmness from 4.5 to 6 out of 10 and Helix mattresses range from 4 to 8 out of 10.
Both brands offer mattresses with similar feels on the softer end. That said, if you want something more firm, you will need to go with Helix. In addition, both brands have multiple options within the medium to medium-firm range.
Check the table below to see the details of each mattress.
| Firmness | Rating | Feel |
|---|---|---|
| Casper Cloud One | 6 | Medium-Firm |
| Casper Dream | 6 | Medium-Firm |
| Casper Dream Max | 4.5 | Soft |
| Casper One | 6 | Medium-Firm |
| Casper Snow Hybrid | 5 | Medium |
| Casper Snow Max | 5 | Medium |
| Helix Dawn | 8 | Firm |
| Helix Dawn Elite | 7 | Slightly Firm |
| Helix Dawn Luxe | 8 | Firm |
| Helix Dusk | 7 | Slightly Firm |
| Helix Dusk Elite | 5.5 | Medium |
| Helix Dusk Luxe | 7 | Slightly Firm |
| Helix Kids | 7 | Slightly Firm |
| Helix Midnight | 6 | Medium-Firm |
| Helix Midnight Elite | 5.5 | Medium |
| Helix Midnight Luxe | 6 | Medium-Firm |
| Helix Moonlight | 4 | Soft |
| Helix Moonlight Elite | 4 | Soft |
| Helix Moonlight Luxe | 7 | Slightly Firm |
| Helix Plus | 6 | Medium-Firm |
| Helix Plus Elite | 6.5 | Medium-Firm |
| Helix Plus Luxe | 7 | Slightly Firm |
| Helix Sunset | 4 | Soft |
| Helix Sunset Elite | 4 | Soft |
| Helix Sunset Luxe | 4 | Soft |
| Helix Twilight | 8 | Firm |
| Helix Twilight Elite | 8 | Firm |
| Helix Twilight Luxe | 8 | 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.

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 Helix.
Casper Mattresses
- Casper One
- Casper Dream
- Casper Snow Hybrid
Helix Mattresses
- Helix Midnight
- Helix Midnight Luxe
- Helix Midnight Elite
The table below shows overall scores as well as scores from the individual testing categories.
| Factor | Casper One | Casper Dream | Casper Snow Hybrid | Helix Midnight | Helix Midnight Luxe | Helix Midnight Elite |
|---|---|---|---|---|---|---|
| Overall Score | 7.88 | 8.68 | 8.56 | 8.73 | 9.43 | 9.21 |
| Cooling | 8.0 | 9.0 | 10 | 9.0 | 10 | 10 |
| Motion Transfer | 8.0 | 8.0 | 8.7 | 8.5 | 9.7 | 9.2 |
| Response | 9.9 | 9.9 | 5.0 | 7.3 | 8.4 | 7.6 |
| Edge Support | 8.2 | 8.9 | 9.4 | 9.5 | 10 | 9.1 |
| Sex | 8.3 | 9.1 | 8.9 | 8.3 | 7.9 | 7.7 |
| Pressure Relief | 6.0 | 8.0 | 9.0 | 9.0 | 10 | 10 |
| Off-Gassing | 6.7 | 7.8 | 4.4 | 8.1 | 8.1 | 8.9 |
| Company | 9.0 | 9.0 | 9.0 | 9.4 | 9.4 | 9.4 |
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.
| Factor | Casper One | Casper Dream | Casper Snow Hybrid | Helix Midnight | Helix Midnight Luxe | Helix Midnight Elite |
|---|---|---|---|---|---|---|
| Price (Queen) | $799 | $1,420 | $1,945 | $999 | $1,899 | $2,999 |
| Cooling | Good | Excellent | Outstanding | Excellent | Outstanding | Outstanding |
| Sinkage – Depth | 1.77″ | 1.89″ | 2.36″ | 2.20″ | 2.03″ | 2.57″ |
| Sinkage – Feel | Minimal | Minimal | Deep | Moderate | Moderate | Deep |
| Motion Transfer – Acceleration | 9.42 m/s² | 9.48 m/s² | 7.95 m/s² | 8.33 m/s² | 5.76 m/s² | 6.84 m/s² |
| Response Time – Mostly Recovered | 0.2 sec. | 0.2 sec. | 2.8 sec. | 0.6 sec. | 0.4 sec. | 0.5 sec. |
| Response Time – Fully Recovered | 0.4 sec. | 0.4 sec. | 5.1 sec. | 1.4 sec. | 1.2 sec. | 1.5 sec. |
| Bounce – Height | 8.77″ | 10.73″ | 9.54″ | 8.21″ | 6.74″ | 6.86″ |
| Bounce – Feel | Moderate | High | Moderate | Moderate | Low | Low |
| Edge Support – Sitting | 3.50″ | 4.00″ | 3.25″ | 3.00″ | 2.75″ | 3.75″ |
| Edge Support – Lying | Fair | Excellent | Excellent | Excellent | Outstanding | Excellent |
| Comfort Layer Thickness | 3.00″ | 3.0″ | 3.0″ | 4.0″ | 5.0″ | 6.0″ |
| Mattress Thickness | 10.00″ | 11.50″ | 11.50″ | 12.00″ | 14.00″ | 15.50″ |
| Off-Gassing – Smell | Strong | Strong | Strong | Strong | Moderate | Strong |
| Off-Gassing – Days | 12 days | 8 days | 20 days | 7 days | 7 days | 4 days |
| Trial | 100 nights | 100 nights | 100 nights | 120 nights | 120 nights | 120 nights |
| Warranty | 10 years | 10 years | 10 years | Lifetime | Lifetime | Lifetime |
Cooling Test
Cooling performance for both brands is great; however, Helix has the higher average score (9.7). Casper’s average of 9.0 was brought down by the good, but not great, performance of the Casper One.
Check out the table below to see how each mattress compares regarding cooling.
| Cooling Test | Score | Baseline | Max. Temp. | Ending Temp. |
|---|---|---|---|---|
| Casper One | 8.0 | 73.1° | 89.6° | 79.7° |
| Casper Dream | 9.0 | 75.0° | 90.0° | 79.7° |
| Casper Snow Hybrid | 10 | 73.8° | 88.1° | 78.2° |
| Helix Midnight | 9.0 | 75.4° | 89.9° | 78.2° |
| Helix Midnight Luxe | 10 | 76.1° | 89.3° | 80.0° |
| Helix Midnight Elite | 10 | 76.4° | 89.0° | 79.1° |
- 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
Helix Midnight
Casper Dream
Helix Midnight Luxe
Casper Snow Hybrid
Helix Midnight Elite
The average cooling score across all mattresses tested to date is 9.0.
The Casper Snow, Helix Midnight Luxe, and Midnight Elite are all mattresses that earned a 10/10 score for cooling performance. They are each hybrid mattresses with pocketed coils and a foam comfort layer.
All three mattresses use a phase change cover, which offers a cool-to-the-touch feel. The phase change cover is an optional upgrade on the Helix Midnight Luxe, and the version we tested included the cover.

Each of these mattresses offers additional cooling benefits, like phase change spray in the case of the Casper Snow, or optional cooling ribbons in the case of the Helix Midnight Luxe and Elite (Casper Snow also has cooling ribbons).
All that said, these three mattresses all offer exceptional cooling.
Among all 6 mattresses compared, the Casper One offered the worst cooling performance. Due to its all-foam design and lack of cooling upgrades, lower performance for cooling isn’t a big surprise. All-foam mattresses tend to retain more heat and dissipate it more slowly.
Sinkage Test
For sinkage, Casper offers less sinkage on average (2.0″ of sinkage) compared to Helix’s deeper sinkage of 2.3″. Casper sinkage levels are either minimal or deep and Helix sinkage levels are moderate or deep.
If you are looking for deep sinkage, both brands have options available. That said, if you prefer minimal sinkage, Casper is the better choice. For moderate sinkage levels, Helix will better match that feel.
Check out the table below to see how each mattress compares regarding sinkage.
| Sinkage Test | Sinkage Feel | Sinkage Depth |
|---|---|---|
| Casper One | Minimal | 1.77″ |
| Casper Dream | Minimal | 1.89″ |
| Casper Snow Hybrid | Deep | 2.36″ |
| Helix Midnight | Moderate | 2.20″ |
| Helix Midnight Luxe | Moderate | 2.03″ |
| Helix Midnight Elite | Deep | 2.57″ |
The level of sinkage for each mattress is documented in the images below.
Casper One

Helix Midnight

Casper Dream

Helix Midnight Luxe

Casper Snow Hybrid

Helix Midnight Elite

The average sinkage depth across all mattresses tested to date is 2.19″.
Back and stomach sleepers usually prefer less sinkage, which better maintains proper alignment of the spine. The Helix Midnight Luxe (2.03″), Casper Dream (1.89″), and Casper One (1.77″) all have less sinkage than average and are also a good value (a balance of price and performance).
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 Helix Midnight (2.2″), Casper Snow Hybrid (2.36″), or Helix Midnight Elite (2.57″).
Motion Transfer Test
Motion transfer is a closer race, but Helix takes the win over Casper. While they aren’t perfect, Helix has a higher average motion transfer score (9.1) than Casper (8.2).
Check out the table below to see how each mattress compares regarding motion transfer.
| Motion Transfer Test | Score | Acc. Range |
|---|---|---|
| Casper One | 8.0 | 9.42 m/s² |
| Casper Dream | 8.0 | 9.48 m/s² |
| Casper Snow Hybrid | 8.7 | 7.95 m/s² |
| Helix Midnight | 8.5 | 8.33 m/s² |
| Helix Midnight Luxe | 9.7 | 5.76 m/s² |
| Helix Midnight Elite | 9.2 | 6.84 m/s² |
The level of motion transfer on each mattress is also documented in the videos below.
Casper One
Helix Midnight
Casper Dream
Helix Midnight Luxe
Casper Snow Hybrid
Helix Midnight Elite
The average motion transfer score across all mattresses tested to date is 8.2.
The mattress with the lowest motion transfer across all 6 is the Helix Midnight Luxe, with a score of 9.7 out of 10. From there, the Helix Midnight Elite, Casper Snow Hybrid, and Helix Midnight all had lower motion transfer than average.
Both the Casper Dream and Casper One had worse scores than average, though not by much. Both of these mattresses have minimal sinkage, which can create excess motion.
Response Test
Response time is a factor where Casper takes the lead over Helix, though neither brand’s average beats the average across all mattresses tested to date.
For reference, Casper’s average response score is an 8.3, whereas the average response score for Helix is a 7.8.
Check out the table below to see how each mattress compares regarding response.
| Response Test | Score | Mostly Recovered | Completely Recovered |
|---|---|---|---|
| Casper One | 9.9 | 0.2 seconds | 0.4 seconds |
| Casper Dream | 9.9 | 0.2 seconds | 0.4 seconds |
| Casper Snow Hybrid | 5.0 | 2.8 seconds | 5.1 seconds |
| Helix Midnight | 7.3 | 0.6 seconds | 1.4 seconds |
| Helix Midnight Luxe | 8.4 | 0.4 seconds | 1.2 seconds |
| Helix Midnight Elite | 7.6 | 0.5 seconds | 1.5 seconds |
The level of responsiveness for each mattress is documented in the videos below.
Casper One
Helix Midnight
Casper Dream
Helix Midnight Luxe
Casper Snow Hybrid
Helix Midnight Elite
The average response score across all mattresses tested to date is 8.8.
Two mattresses in this comparison boast better-than-average response times. These include the Casper One and Casper Dream, both of which scored a 9.9 out of 10. They both took 0.2 seconds to mostly recover and 0.4 seconds for a full recovery.

While Casper offers the best, it also offers the worst of the 6 in this comparison. The Casper Snow had significantly longer response times than average, taking 2.8 seconds to mostly recover and 5.1 seconds to fully recover.
None of the other mattresses beat our testing average. That said, the best Helix performance came from the Midnight Luxe, with a score of 8.4.
Bounce Test
Bounce, being a preferential factor, can still be important for sleepers and there are differences between Casper and Helix.
Casper mattresses have either moderate or high bounce. On the other hand, Helix mattresses offer low or moderate bounce.
Check out the table below to see how each mattress compares regarding bounce.
| Bounce Test | Bounce Feel | Bounce Height |
|---|---|---|
| Casper One | Moderate | 8.77″ |
| Casper Dream | High | 10.73″ |
| Casper Snow Hybrid | Moderate | 9.54″ |
| Helix Midnight | Moderate | 8.21″ |
| Helix Midnight Luxe | Low | 6.74″ |
| Helix Midnight Elite | Low | 6.86″ |
The level of bounce for each mattress is documented in the videos below.
Casper One
Helix Midnight
Casper Dream
Helix Midnight Luxe
Casper Snow Hybrid
Helix Midnight Elite
The average bounce across all mattresses tested to date is 8.99″.
Mattresses with more bounce than average include the Casper Dream (10.73″) and Casper Snow Hybrid (9.54″).
Mattresses with less bounce than average include the Casper One (8.77″), Helix Midnight (8.21″), Helix Midnight Luxe (6.74″), and Helix Midnight Elite (6.86″).
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
Concerning edge support, Helix mattresses offer better-than-average performance, with an average score of 9.5.
Casper’s brand average also beats our testing average with a score of 8.8. That said, it offers mattresses that perform worse than average as well.
Check out the table below to see how each mattress compares regarding edge support.
| Edge Support Test | Score | Sitting Sinkage | Lying Support |
|---|---|---|---|
| Casper One | 8.2 | 3.50″ | Fair |
| Casper Dream | 8.9 | 4.00″ | Excellent |
| Casper Snow Hybrid | 9.4 | 3.25″ | Excellent |
| Helix Midnight | 9.5 | 3.00″ | Excellent |
| Helix Midnight Luxe | 10 | 2.75″ | Outstanding |
| Helix Midnight Elite | 9.1 | 3.75″ | Excellent |
The level of edge support is documented in the images below.
Casper One

Helix Midnight

Casper Dream

Helix Midnight Luxe

Casper Snow Hybrid

Helix Midnight Elite

The average edge support score across all mattresses tested to date is 8.7.
Across all 6 mattresses compared, the Helix Midnight Luxe is the only mattress with a perfect score. With only 2.75″ of sinkage while sitting and outstanding support while lying, it’s hard to beat the Midnight Luxe.

The highest-scoring mattress for Casper is the Snow Hybrid with a score of 9.4. It offers excellent support whether sitting or lying. This level of performance is comparable to the Helix Midnight (9.5), but falls short of the Midnight Luxe.
The Casper Dream is the worst-performing mattress when it comes to sitting edge sinkage. At 4.00″ of sinkage, it has the most in this comparison. That said, the Casper One lacks support while lying at the edge, giving it the lowest score in this comparison, an 8.2.
Sex Test
Sex performance is another category where Casper takes the win. Casper’s average sex score is 8.8 and Helix’s average sex score is 8.0.
This score is generated by analyzing 5 different factors—bounce, edge support, cooling, pressure relief, and noise.
Check out the table below to see how each mattress compares regarding sex.
| Sex Test | Sex Score | Bounce | Edge Support | Noise | Pressure Relief | Cooling |
|---|---|---|---|---|---|---|
| Casper One | 8.3 | 8.0 | 9.4 | 10 | 6.0 | 8.0 |
| Casper Dream | 9.1 | 9.2 | 8.8 | 10 | 8.0 | 9.0 |
| Casper Snow Hybrid | 8.9 | 8.5 | 9.7 | 10 | 9.0 | 10 |
| Helix Midnight | 8.3 | 7.6 | 10 | 10 | 9.0 | 9.0 |
| Helix Midnight Luxe | 7.9 | 6.7 | 10 | 10 | 10 | 10 |
| Helix Midnight Elite | 7.7 | 6.8 | 9.1 | 10 | 10 | 10 |
The average sex score across all mattresses tested to date is 8.2.
Most mattresses have better-than-average performance. The Casper Dream, Casper Snow, Casper One, and Helix Midnight all have scores that beat the average.
The Casper Dream has a score of 9.1 and is the top performer of this comparison. It has high bounce and solid edge support, both of which are critically important for sex.
The Helix Midnight Luxe and Midnight Elite both had lower-than-average scores, largely due to the lack of bounce. While low bounce often facilitates lower motion transfer, it does no favors for sex performance.
Pressure Relief Test
Pressure relief can be one of the most important factors to consider, especially for side sleepers. The clear winner for this category is Helix.
Helix mattresses have an average pressure relief score of 9.7, with two mattresses having perfect scores. Casper had an average pressure relief score of 7.7.
Check out the table below to see how each mattress compares regarding pressure relief.
| Pressure Relief Test | Score | Comfort Layer | Support Layer |
|---|---|---|---|
| Casper One | 6.0 | 3.00″ | 7.00″ |
| Casper Dream | 8.0 | 3.00″ | 8.50″ |
| Casper Snow Hybrid | 9.0 | 3.00″ | 8.50″ |
| Helix Midnight | 9.0 | 4.00″ | 8.00″ |
| Helix Midnight Luxe | 10 | 5.00″ | 9.00″ |
| Helix Midnight Elite | 10 | 6.00″ | 9.50″ |
The average pressure relief score across all mattresses tested to date is 9.0.
The materials included in each mattress are documented in the images below.
Casper Dream

Helix Midnight

Casper One

Helix Midnight Luxe

Casper Snow

Helix Midnight Elite

The mattresses with the best pressure relief are the Helix Midnight Luxe and Midnight Elite, both earning 10/10 scores.
While it isn’t always true, pressure relief has a strong correlation to the thickness of the comfort layer. A mattress with a thicker comfort layer and sufficient support layer is one of the most effective ways to see improved pressure relief.

We can see this in effect with the Helix Midnight Luxe and Midnight Elite, both of which have comfort layers at 5.0″ or more.
On the other side, the Casper One has only 3.0″ of comfort material and a 7.0″ support layer. With less total material than every other mattress in this comparison, your body creates more significant contact with the support foam, which is quite hard.
Off-Gassing Test
The off-gassing experience is notably different between brands. Helix earned an average off-gassing score of 8.4, with smells lasting between 4-7 days.
Casper, on the other hand, had a score of 6.3 with the smell lasting anywhere from 8-20 days, significantly longer than Helix.
If you are sensitive to strong odors, Helix will be the better option as the off-gassing process is faster.
Check out the table below to see how each mattress compares regarding off-gassing.
| Off-Gassing Test | Score | Initial Smell | Smell Duration |
|---|---|---|---|
| Casper One | 6.7 | Strong | 12 days |
| Casper Dream | 7.8 | Strong | 8 days |
| Casper Snow Hybrid | 4.4 | Strong | 20 days |
| Helix Midnight | 8.1 | Strong | 7 days |
| Helix Midnight Luxe | 8.1 | Moderate | 7 days |
| Helix Midnight Elite | 8.9 | Strong | 4 days |
The average smell duration across all mattresses tested to date is 6.7 days.
The only mattress with a shorter-than-average off-gassing period was the Helix Midnight Elite. That said, the Helix Midnight Luxe, Helix Midnight, and Casper Dream weren’t far from the average.

The Helix Midnight Luxe is a notable exception for having a moderate smell upon initial unboxing, compared to the strong smell from every other mattress.
The Casper Snow had the longest off-gassing period, being 3 times longer than the average and 5 times longer than the Helix Midnight Elite.
Company
Both brands offer company policies that favor consumers, although Helix’s policies are slightly better.
Check out the table below to see how each mattress compares regarding company policies.
| Company | Casper | Helix |
|---|---|---|
| Score | 9.0 | 9.4 |
| Trial Period | 100 nights | 120 nights |
| Warranty | 10 years | Lifetime |
| Shipping | $0 | $0 |
| Returns | $0 | $0 |
| Country of Origin | USA | USA |
To date, we have tested 380+ mattresses from 102 different brands. The average trial length is 176 nights and the average warranty is 14 years, excluding 42% of mattresses that offer lifetime warranties.
Casper and Helix both offer free shipping and free returns. Casper offers a 100-night trial period and Helix’s is slightly longer at 120 nights.

Where Helix takes a notable lead is in warranty. They offer a lifetime warranty, whereas Casper provides a 10-year warranty. Receiving warranty support for the life of the mattress helps reassure customers in their choice of mattress.
Casper vs. Helix Testing Data
| Mattress Name | Overall Score | Cooling Score | Motion Transfer Score | Response Time Score | Edge Support Score | Sex Score | Pressure Relief Score | Off-Gassing Score | Company Score | Type | Thickness | Firmness | Sinkage | Bounce | Trial (days) | Ships To | Price (Queen) | Read Review |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Helix Midnight Luxe | 9.43 | 10 | 9.7 | 8.4 | 10 | 7.9 | 10 | 8.1 | 9.4 | Hybrid | 14.00" | Medium-Firm | 2.03" | 6.74" | 120 nights | USA, Canada | $1,899 | Review |
| Helix Dusk Luxe | 9.32 | 10 | 10 | 7.9 | 10 | 8.6 | 9.0 | 8.6 | 9.4 | Hybrid | 13.50" | Slightly Firm | 2.08" | 8.74" | 120 nights | USA, Canada | $1,799 | Review |
| Helix Plus Elite | 9.31 | 10 | 8.7 | 8.6 | 10 | 7.9 | 10 | 8.3 | 9.4 | Plus-Sized | 15.50" | Medium-Firm | 2.64" | 6.98" | 100 nights | USA, Canada | $2,999 | Review |
| Helix Twilight Elite | 9.22 | 10 | 9.1 | 7.6 | 9.6 | 7.9 | 10 | 8.1 | 9.4 | Hybrid | 15.50" | Firm | 2.63" | 7.17" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Midnight Elite | 9.21 | 10 | 9.2 | 7.6 | 9.1 | 7.7 | 10 | 8.9 | 9.4 | Hybrid | 15.50" | Medium | 2.57" | 6.86" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Dusk Elite | 9.18 | 10 | 9.1 | 7.7 | 9.1 | 7.9 | 10 | 8.1 | 9.4 | Hybrid | 15.50" | Medium | 2.73" | 7.92" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Moonlight Elite | 9.15 | 10 | 8.8 | 8.2 | 8.7 | 7.9 | 10 | 8.1 | 9.4 | Hybrid | 15.50" | Soft | 3.04" | 7.56" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Plus Luxe | 9.14 | 9.0 | 9.5 | 9.0 | 10 | 8.8 | 9.0 | 7.8 | 9.4 | Plus-Sized | 13.50" | Slightly Firm | 2.35" | 9.24" | 100 nights | USA, Canada | $1,893 | Review |
| Helix Sunset | 9.13 | 10 | 8.4 | 8.6 | 8.1 | 8.5 | 10 | 8.1 | 9.4 | Hybrid | 12.50" | Soft | 3.04" | 9.30" | 120 nights | USA, Canada | $999 | Review |
| Helix Dawn Elite | 9.09 | 10 | 7.4 | 8.4 | 9.7 | 8.1 | 10 | 8.3 | 9.4 | Hybrid | 15.50" | Slightly Firm | 2.59" | 7.62" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Sunset Luxe | 9.07 | 9.0 | 9.3 | 6.8 | 9.9 | 8.3 | 10 | 8.6 | 9.4 | Hybrid | 13.50" | Soft | 2.44" | 8.22" | 120 nights | USA, Canada | $1,799 | Review |
| Helix Moonlight Luxe | 9.05 | 9.0 | 8.9 | 9.4 | 10 | 8.2 | 9.0 | 8.3 | 9.4 | Hybrid | 13.50" | Slightly Firm | 1.93" | 7.83" | 120 nights | USA, Canada | $1,799 | Review |
| Helix Sunset Elite | 9.05 | 10 | 8.9 | 7.7 | 8.7 | 7.4 | 10 | 7.8 | 9.4 | Hybrid | 15.50" | Soft | 2.60" | 6.39" | 120 nights | USA, Canada | $2,999 | Review |
| Helix Twilight | 9.04 | 9.0 | 8.3 | 9.8 | 10 | 8.6 | 9.0 | 8.3 | 9.4 | Hybrid | 12.00" | Firm | 2.34" | 8.89" | 120 nights | USA, Canada | $999 | Review |
| Helix Twilight Luxe | 9 | 9.0 | 9.5 | 7.9 | 10 | 8.3 | 9.0 | 8.3 | 9.4 | Hybrid | 13.50" | Firm | 2.03" | 7.99" | 120 nights | USA, Canada | $1,799 | Review |
| Helix Dawn Luxe | 8.94 | 9.0 | 8.4 | 8.6 | 9.6 | 8.7 | 9.0 | 8.9 | 9.4 | Hybrid | 13.50" | Firm | 2.54" | 9.53" | 120 nights | USA | $1,799 | Review |
| Helix Dusk | 8.90 | 9.0 | 7.8 | 9.6 | 9.5 | 9.4 | 9.0 | 6.7 | 9.4 | Hybrid | 12.00" | Slightly Firm | 1.83" | 10.81" | 120 nights | USA, Canada | $999 | Review |
| Helix Moonlight | 8.87 | 9.0 | 7.5 | 9.8 | 9.2 | 8.7 | 9.0 | 8.6 | 9.4 | Hybrid | 12.00" | Soft | 2.50" | 9.40" | 120 nights | USA, Canada | $999 | Review |
| Casper Dream Max | 8.73 | 9.0 | 8.1 | 9.7 | 8.4 | 9.7 | 9.0 | 4.7 | 9.0 | Hybrid | 13.50" | Soft | 2.41" | 12.73" | 100 nights | USA | $2,470 | Review |
| Helix Midnight | 8.73 | 9.0 | 8.5 | 7.3 | 9.5 | 8.3 | 9.0 | 8.1 | 9.4 | Hybrid | 12.00" | Medium-Firm | 2.20" | 8.21" | 120 nights | USA, Canada | $999 | Review |
| Casper Cloud One | 8.70 | 9.0 | 9.0 | 9.6 | 8.2 | 7.8 | 9.0 | 5.8 | 9.0 | Memory Foam | 10.50" | Medium-Firm | 2.46″ | 7.62″ | 100 nights | USA | $999 | Review |
| Casper Dream | 8.68 | 9.0 | 8.0 | 9.9 | 8.9 | 9.1 | 8.0 | 7.8 | 9.0 | Hybrid | 11.50" | Medium-Firm | 1.89" | 10.73" | 100 nights | USA | $1,420 | Review |
| Helix Dawn | 8.66 | 9.0 | 7.7 | 8.9 | 9.6 | 9.0 | 8.0 | 8.3 | 9.4 | Hybrid | 11.50" | Firm | 2.05" | 10.23" | 120 nights | USA, Canada | $999 | Review |
| Helix Plus | 8.66 | 9.0 | 8.3 | 8.5 | 9.1 | 9.1 | 8.0 | 8.1 | 9.4 | Plus-Sized | 11.50" | Medium-Firm | 2.15" | 10.97" | 100 nights | USA, Canada | $1,124 | Review |
| Casper Snow Hybrid | 8.56 | 10 | 8.7 | 5.0 | 9.4 | 8.9 | 9.0 | 4.4 | 9.0 | Memory Foam Hybrid | 11.50" | Medium | 2.36" | 9.54" | 100 nights | USA | $1,945 | Review |
| Casper Snow Max | 8.38 | 10 | 7.4 | 5.5 | 8.6 | 7.4 | 10 | 4.4 | 9.0 | Memory Foam Hybrid | 13.50" | Medium | 3.05" | 6.13" | 100 nights | USA | $2,995 | Review |
| Helix Kids | 8.25 | 9.0 | 7.1 | 6.4 | 8.9 | 8.4 | 8.0 | 9.4 | 9.4 | Kids | 8.00" | Slightly Firm | 1.95" | 9.21" | 100 nights | USA, Canada | $749 | Review |
| Casper One | 7.88 | 8.0 | 8.0 | 9.9 | 8.2 | 8.3 | 6.0 | 6.7 | 9.0 | Foam | 10.00" | Medium-Firm | 1.77" | 8.77" | 100 nights | USA | $799 | Review |
