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Casper vs. Helix Mattress Comparison

The Helix Midnight and Casper Original share the same firmness levels and offer great motion isolation. However, they differ in key ways, namely their construction and who they’re best for. In this mattress comparison article, we share important information about each bed to help you decide which is right for you.

Comparing Helix vs. Casper Mattresses

Casper is a three-layer mixed foam mattress with polyfoam and memory foam comfort layers and a high-density polyfoam base. The Helix Midnight, is a memory foam hybrid with the same firmness level. In this Casper vs. Helix review, we compare the Casper Original and Helix Midnight mattresses. Keep reading to learn about each bed’s highlights, their differences and similarities, how they’re made, and who we recommend each mattress for.


  • Style—The Helix Midnight is a hybrid mattress, and the Casper Original is a mixed memory foam mattress.
  • Noise and Motion Isolation—The Casper Original reduces noise and isolates motion better than the Helix Midnight thanks to its all-foam construction
  • Pressure Relief—While both mattresses offer above-average pressure relief, the Casper is a step ahead of the Helix Midnight in this performance category, making it the better mattress for side sleepers.
  • Support—The Midnight’s pocketed coil layer and dense polyfoam base make it slightly more supportive of the entire body than the Casper.


  • Firmness Level—Both mattresses have a medium firmness level at roughly a 6/10 on the firmness scale.
  • Mattress Height—The Casper measures 12” tall and the Helix Midnight (standard) measures 12” tall as well. The Helix Midnight LUXE is 14” high.
  • Cost—Both beds cost less than $1,500 in all sizes.
  • Trial and Warranty—The Helix Midnight and the Casper both come with 100-night sleep trials and are backed by a 10-year warranty.
  • Shipping—Both mattresses ship free in all 50 states.

Helix Midnight

The Helix Midnight provides tailored support and a medium-firmness feel geared specifically for side sleepers. The hybrid construction promotes airflow to keep you cool, while the foam layers provide cradling and support where you need it.
helix midnight
4.8 / 5.0


Trial period

100 nights

Reason to buy

Made for side sleepers

Who is the Helix Mattress Best For?

Best For…

  • Sleepers who enjoy a balance of contouring and support
  • Couples and co-sleepers
  • Sleepers who experience aches or painful pressure points
  • Lightweight and average weight sleepers
  • Shoppers on a budget
  • Those who sleep hot on other foam beds

May Not be Best For…

  • Shoppers who enjoy a responsive, bouncy mattress
  • Heavyweight sleepers

Read our full Helix mattress review to learn more. 

Casper Original

The original mattress that made the brand famous, the Casper is known for its design that suits all sleep positions. Casper's Zoned Support feature is engineered to support the hips, shoulders and back to keep the spine aligned. At an affordable price point, too, this mattress is hard to beat.
Casper Original Mattress
4.8 / 5.0


Trial period

100 nights

Reason to buy

Affordable mattress made for all sleepers

Who the Casper Mattress is Best For 

Best For…

  • Sleepers who prefer a Medium firmness and close conforming
  • Those who sleep hot
  • Lightweight and average weight sleepers
  • A great affordable mattress choice
  • Shoppers in need of edge support

May Not be Best For…

  • Those looking for traditional memory foam, deep sinking feel
  • Couples

Read our full Casper mattress review to learn more.

Deciding Between Helix and Casper

Firmness / Feel

A mattress’ firmness is how soft or firm it feels to a sleeper. In the mattress industry, a firmness scale of 1 to 10 is used, with 1 being very soft and 10 being very firm. Most mattresses fall in the middle portion of the scale.

Firmness is both a preference and an important factor in ensuring the bed healthily supports your body weight and sleeping position. What’s “right” for a sleeper will vary based on the feel they enjoy, how they sleep and their body weight. For example, side sleepers need more contouring in the hips and shoulders, which, when allowed to sink deeper into the mattress’ top layers, encourage a neutral spine.

Average weight side sleepers usually find these qualities in a medium or medium-firm mattress, but heavyweight sleepers will need a medium-firm or very firm mattress to achieve this same feel and level of support. The opposite is true for lightweight side sleepers.

The Casper Original and Helix Midnight share a medium firmness level (6/10) that suits most lightweight and average weight sleepers. Both mattresses suit side sleepers, back sleepers, and stomach sleepers well, but side sleepers will appreciate the beds’ conforming top layers most. For a Helix mattress with a softer feel, try the Helix Moonlight or Helix Sunset. 

Motion Isolation

When you change positions or get out of bed, your body creates movement that may be felt by your sleeping partner. If you or your partner are light sleepers, this can create disturbances and prevent a restful night’s sleep. A bed’s ability to isolate motion is dependent on several factors, including its thickness, firmness level, and foam or latex layers.

In general, foam mattresses like the Casper Original isolate motion very well. Hybrids are usually more responsive but don’t isolate motion as well as foam. Some hybrids have built-in motion-isolating properties, and while the Helix Midnight has some aspects that encourage this, it still scores about average in this performance category. See our picks for the best mattress for couples that isolate motion and accommodate two sleepers well. 

Edge Support

Edge support, or how well the mattress withstands pressure at its edges, is an important consideration for certain people. For couples who share a space, edge support increases the area of sleepable space on the mattress. For some, it can be difficult to move in and out of the bed, making increased edge support important for their mobility. Edge support can be closely correlated with a mattress’ durability as well, so it’s never a bad idea to purchase a mattress that performs well in this category.

The Helix Midnight has exceptional edge support thanks to a high-density foam base that reinforces the pocketed coil layer. The Casper Original, like most all-foam beds, sinks significantly at its edges.

Pressure Relief 

Sleepers of all sizes and sleeping positions have pressure points, and a bed with pressure relief can help alleviate aches and pains to encourage a better night’s sleep. The comfort layers of a mattress are most influential in determining its ability to relieve pressure.

Both the Casper Original and the Helix Midnight provide comparable levels of pressure relief, although the Helix Midnight may slightly excel in this area. The Casper is a good mattress for back pain and have sensitive areas along their spines, while the Helix provides a more general close conforming feel.

Spine Alignment 

Even when you’re sleeping, your spine should remain as aligned as possible; this means your hips or shoulders shouldn’t sink too much. Beds that cater to your sleeping position and can adequately support your (or you and your partner’s) bodyweight are a good place to start when searching for this quality in a mattress.

The Helix Midnight’s comfort layers are made from memory foam, which will contour to the body and help improve spinal alignment, especially for side sleepers. Similarly, the Casper’s polyfoam and memory foam comfort layers provide the bed’s medium firmness and conform closely to help align the spine very well for side sleepers and well for back and stomach sleepers. The Casper’s Zoned Support provides softer support under the hips and shoulders with firm support underneath the lower back. See our other picks for the best mattress for back sleepers, protecting the lower back and propping up the hips.


Durability refers to how long a mattress and its materials will last. Most mattresses in the industry have a lifespan of five to eight years with seven years being average. Both Casper and Helix are relatively new brands to the market, so they haven’t been around long enough for us to comment substantially on their longevity.

The quality of a bed’s construction and materials correspond closely with its durability, however, and both the Casper and Helix come from reputable makers. The bed’s support cores, 7.5” of high-density foam and a pocketed coil support core, respectively, may also help them last longer than competitors. For both, you can prevent body impressions and encourage longevity by rotating the mattress every three to six months.


A mattress’ ability to provide a cool night’s sleep will depend on its style and the materials used in its construction. The best cooling mattresses wick away heat from the sleeper’s body. In general, all-foam beds trap more heat than hybrid mattresses, which have breathable pocketed coil layers to encourage constant airflow. Many foam mattresses, however, now incorporate materials specifically designed to prevent heat retention, like gel-infused foams, open-cell foams and copper-infused covers.

The Casper offers a temperature neutral night’s sleep. It won’t trap body heat and sleeps somewhat cooler than other foam mattresses. The Helix Midnight (and all Helix beds) has standout temperature regulation. The coil layer promotes steady airflow and the comfort layers have lower-density foams to absorb less body heat and sleep cooler than other hybrid beds with more dense foam varieties.

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Helix vs. Casper The Helix (left) is compared to the construction of the Casper (right).

Helix vs Casper Mattress Construction 

Helix Midnight Casper Original
Cover Polyester Polyester
Comfort Layer  2” 2.5 PCF Memory Foam 1.5” Polyfoam

1.5” 4 PCF Memory Foam

1.5” 3.5 PCF Polyfoam

Transitional Layer 1” Transitional Polyfoam (Helix Dynamic Foam) 1.5” 3.5 PCF Polyfoam
Support Layer Pocketed Coils

1” PCF HD Polyfoam

7.5” 1.8 PCF HD Polyfoam
Mattress Thickness  12” (14” in LUXE version) 12”

Helix Midnight Construction

The Helix Midnight is a hybrid mattress constructed with a 2-inch layer of PCF gel-infused memory foam, a low-density foam that absorbs very little heat when compared to foams of higher densities, allowing the surface of the mattress to sleep comfortably cool. The 1” transitional layer features Helix Dynamic Foam, which acts as a buffer between the sleepers and the dense support coils. 

The support core of the Helix mattress is 8-inches of pocketed coils and a 1-inch PCF high-density foam base. The pocketed coils stabilize the mattress, enhance responsiveness, reduce sagging, improve edge support, and promote airflow for a cool night’s sleep. The bed’s layers are encased in a stretchy polyester cover. Overall, the bed has a medium-firm feel that’s roughly a 6/10 on the firmness scale, and its layers contour to the body to alleviate pressure while providing even support. 

Casper Construction

The Casper is a mixed foam mattress with a polyester cover and polyfoam and memory foam layers. The comfort section of the mattress contains two 1.5” polyfoam layers and a middle 1.5” memory foam layer, which provides a medium feel that conforms closely yet supports the spine in proper alignment. 

The bed has a 7.5” high-density polyfoam base and measures 12” tall. Although its design is simple, the Casper provides strong overall support for a memory foam mattress. Lightweight and average weight sleepers should feel good on this bed in all positions, and the thick comfort section provides a plush, cushioned feel. However, see our list on the best mattress for stomach sleepers if you are looking for a mattress that may work for heavier sleepers and those who need extra support at the hips.

Sizing & Price Comparisons 

Mattress Size  Casper Price  Purple Price 
Twin $595 $600
Twin XL $695 $700
Full $995 $850
Queen $1,095 $999
King $1,295 $1,249
California King $1,295 $1,249

See our Helix Mattress Coupons & Casper Mattress Coupons for the best price on a new mattress.

Shipping and Returns for Helix & Casper

Both Casper and Helix offer free shipping with purchase in all 50 states. Casper ships free anywhere in Canada as well, and Helix ships free to some parts of Canada. Both mattresses are shipped as a bed-in-a-box, which means they’re compressed, roll-packed, and sent to your home as such. Once they arrive, you simply remove the bed from the box, unroll it, and allow it to expand to its original shape.

Casper offers White Glove delivery for an additional fee of $149, and it includes old mattress removal and in-home set. Helix does not appear to offer White Glove delivery.

If you’re not satisfied with your Casper Original during the 100-night trial period, you may return the mattress for a full refund. Casper will coordinate mattress removal from your home after a return is requested. Keep in mind that you may face additional charges if you purchase your mattress from Amazon or another third-party retailer like Wayfair.com. Exchanges are also available during the 100-night trial.

Helix requires sleepers to sleep on the bed for 30 nights before returning the mattress. If you don’t like your Helix Midnight mattress after 30 nights, you may return the mattress for a full refund. Helix will coordinate the mattress pickup from your home. If you’re not satisfied with the bed’s firmness in particular, Helix will mail you an additional comfort layer to make the mattress more plush or more firm at no charge to you.

More Casper Mattresses

Casper Wave Hybrid

The Casper Wave Hybrid is Casper’s luxury mattress and has a medium-soft feel. It combines foam and pocketed coils for a more responsive feel and is very breathable.

Casper Wave Hybrid Mattress

Read our full Casper Wave Hybrid mattress review to learn more.

Casper Element

The Element features three layers of foam and is Casper’s most affordable mattress. Its simple design and low price point are suitable for shoppers on a budget.

Casper Element Mattress in a plain room

Read our full Casper Element mattress review to learn more.

Casper Nova Hybrid

The Nova is Casper’s softest mattress, with a cloud-like feel and a mid-range price point. It comes as a hybrid which promotes support and airflow.

nova hybrid plain room xl 1

Read our full Casper Nova mattress review to learn more.

More Helix Mattresses

Helix Midnight Luxe

The LUXE shares a similar construction to the Helix Midnight Standard, but includes an additional transitional layer and zoned, multi-gauge coils. It’s also 14” tall, making it a better fit for heavy sleepers.

Helix Midnight Luxe Mattress

Read our full Helix Midnight mattress review to learn more.

Helix Plus

The Plus is a Helix hybrid that’s designed specifically for heavy individuals.

Read our full Helix Plus mattress review to learn more.

Helix Dawn

The Helix Dawn is designed for stomach and back sleepers, providing firm support while protecting the spine. With little give and less pressure relief than softer mattresses, the Helix Dawn makes it easy to move around on the mattress.

Read our full Helix Dawn mattress review to learn more.

Our Helix vs. Casper Final Review

So, which is the best mattress? We’ll let you decide. The Helix Midnight and Casper share a lot in common, including price point, firmness level, foam types, and height. Both conform closely to the body and provide great pressure relief for less than $1,500 in all sizes.

However, we think the Casper is a better choice for shoppers looking for that signature memory foam feel. It’s plush, conforming top layers will give you the sensation of sleeping “in” the mattress rather than “on” it, and if that’s what you love, the Casper is your bed. See our list on best mattress for combination sleepers for mattresses that prop the sleep on top of the mattress and make it easier to change positions.

The Helix Midnight is a better choice for sleepers who tend to get hot throughout the night, as the pocketed coil support core will encourage temperature neutrality. It also offers better full-body support than the Casper, so back and stomach sleepers, especially those in the average weight category, may find that the Helix Midnight is a better fit than the Casper over time.