Sleepfoundation.org is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our process here

Home / Mattress Comparisons / Casper vs. Cocoon Chill Mattress Comparison

Written by

Daniel Noyed

author

Casper and Cocoon Chill both feature competitively priced all-foam and hybrid mattresses that can be purchased online, directly from the manufacturer.

Sealy has been well known in the industry for some time and offers an impressive number of mattress models. The company’s Cocoon Chill series includes one all-foam design and one hybrid, each sold as a bed in a box.

Casper is a younger company that’s gained popularity in recent years. The brand was at the forefront of the online mattress movement and has inspired many bedding companies to follow suit. Casper offers a range of hybrid and all-foam models to match varying budgets.

Because Cocoon Chill and Casper mattresses both utilize memory foam and share core features, many shoppers find themselves torn between the two brands. We’ll compare both collections so you can see how each model rates in terms of performance, pricing, and construction. We’ll also give an overview of each company’s policy regarding shipping, returns, and warranties to help you choose a mattress with confidence.

Quick Look

We’ve worked hard to show you which mattresses are the best fit for you. Check out our full mattress guides listed below!

Price Range (Queen)
$595-$2,695 $699-$969
Firmness Options
Medium (5), Medium Firm (6) Medium Firm (6)
Standout Features
  • Wide range of hybrid and all-foam models to suit different body weights and sleeping styles
  • Innovative designs incorporating recycled materials and cooling technology
  • Breathable Airscape polyfoam balances contouring and bounce
  • Designed to optimize temperature regulation 
  • Memory foam comfort layers offer standout pressure relief 
  • Both models isolate movement and help minimize sleep disturbances
Models
Sleep Trial & Warranty
100-night sleep trial
10-year limited warranty
100-night sleep trial
10-year limited warranty
Customer Service
A+ A-
Casper

Save 10% off your cart with code SF10

Cocoon Chill

Save 35% on a Cocoon Chill Mattress and get free pillows and sheets with this code: SLEEPFOUND35

Sizing Options

Getting the right size mattress is an important element of sleep comfort. Factors that drive size compatibility include height, body weight, budget, bedroom size, whether you sleep alone or with a partner, and personal preference.

Most mattresses come in six standard sizes, but some brands offer additional sizing options. Twin and full size mattresses are more compact and suitable for solo sleepers or children. Queen and king sizes are popular among couples and individuals who enjoy more space to spread out. A taller person might opt for a twin XL or California king, which are longer versions of the standard twin and king.

It’s also wise to consider mattress height and weight when shopping for a new bed. Some people prefer sleeping lower to the ground, but thicker mattresses are often more supportive and may be easier to get in and out of if joint or mobility issues are a factor.

Mattress weight has less of an impact on sleep satisfaction, but heavier models can make moving your bed more challenging.

Casper

Cocoon Chill

Height
Size Options
11"
Twin, Twin XL, Full, Queen, King, California King
Height
11"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
10"
Twin, Twin XL, Full, Queen, King, California King
Height
10"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
11"
Twin, Twin XL, Full, Queen, King, California King
Height
11"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
12"
Twin, Twin XL, Full, Queen, King, California King
Height
12"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
13"
Twin, Twin XL, Full, Queen, King, California King
Height
13"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
10"
Twin, Twin XL, Full, Queen, King, California King
Height
10"
Size Options
Twin, Twin XL, Full, Queen, King, California King
Height
Size Options
12"
Twin, Twin XL, Full, Queen, King, California King
Height
12"
Size Options
Twin, Twin XL, Full, Queen, King, California King

All Casper and Cocoon Chill mattresses are available in the six standard sizes: twin, twin XL, full, queen, king, and California king. Casper models are half an inch longer than Cocoon Chill mattresses, but sizing between the two brands is otherwise identical.

Most of the Casper and both of the Cocoon Chill models fall within the standard mattress height range, between 10 and 12 inches. The shortest mattress for each brand is 10 inches, and both are all-foam models. At 13 inches tall, the Casper Wave Hybrid has the highest profile of the two lines.

The variations in weight among both brands can be attributed to differences in construction methods. Hybrids generally weigh more than all-foam models since they utilize robust steel coil layers. With the fewest layers and least complicated design, the all-foam Casper Element is the lightest mattress.

Differences in height and weight between Casper and Cocoon Chill mattresses are fairly negligible, so it’s unlikely that either attribute will be a deciding factor.

Casper

Save 10% off your cart with code SF10

Cocoon Chill

Save 35% on a Cocoon Chill Mattress and get free pillows and sheets with this code: SLEEPFOUND35

Construction and Materials Comparison

Materials and construction methods directly impact a mattress’ quality, longevity, and feel. Performance factors like responsiveness, motion isolation, temperature neutrality, and edge support all depend on how a mattress is crafted.

Most mattresses consist of separate comfort and support systems, sometimes with transitional layers in between. A comfort system may feature one or more top layers and is largely responsible for a mattress’ overall feel. The support core is made from more substantial materials, which are designed to support the spine and stabilize the overall mattress.

All Casper and Cocoon Chill models are either hybrid or all-foam designs:

  • Hybrid mattresses typically combine an innerspring support core with a comfort system made from various materials like memory foam, polyfoam, or latex. The philosophy behind a hybrid model is to emphasize the strengths of different construction methods while minimizing their drawbacks.
  • All-foam mattresses are made entirely from foam. The support cores are usually constructed out of high-density foams for greater stability, and the comfort systems use memory foam, polyfoam, or similar materials to contour to the body.

Casper

The Casper mattress collection features three hybrids and two all-foam models. Construction and materials vary based on the model and mattress type, but each mattress features a breathable cover that is soft and stretchy. The cover is composed of upcycled cotton, rayon, spandex, and recycled polyester made from plastic bottles reclaimed from landfills or the ocean.

Another noteworthy feature across all Casper mattresses is their proprietary Airscape polyfoam. The foam is designed to increase ventilation, making it more breathable than conventional foams. Airscape polyfoam balances body-contouring with responsiveness, which is why Casper mattresses perform well when it comes to both pressure relief and ease of movement.

Other performance ratings depend on materials and design methods specific to each model.

Casper Original & Casper Hybrid

The Casper Original is a zoned all-foam model designed to optimize spinal alignment. The polyfoam’s perforated construction increases airflow, which helps promote temperature neutrality. This flagship mattress has three foam layers:

  • 1.5 inches of Airscape polyfoam
  • 2 inches of ergonomic, 3-zoned memory foam
  • 7-inch polyfoam support base

Drawing on the strengths of the Casper Original while introducing new features, the company launched the Casper Hybrid. Both models share the same two-layer comfort system, but the Casper Hybrid uses pocketed coils in the support core instead of polyfoam. The coil core also has reinforced edges. The Casper Hybrid has the following layers:

  • 1.5 inches of Airscape polyfoam
  • 2 inches of ergonomic, 3-zoned memory foam
  • 6 inches of pocketed coils with a 7-inch foam encasement

Both the Casper Original and Hybrid mattresses have a medium feel, which registers as a 5 on the 10-point firmness scale. This firmness level appeals to a broad range of body sizes and sleeping preferences.

Since the two models share the same comfort system, they offer comparable contouring and pressure relief. Zoned memory foam layers provide targeted support based on unique body needs. Heavier areas like the lumbar region and midsection encounter more push-back, while the shoulders and neck receive more cushioning.

Because the Casper Hybrid has a coil support core, the mattress offers more bounce than the Casper Original. The Hybrid also has stronger edge support, thanks to a robust foam encasement along the perimeter.

Casper Nova Hybrid

The Casper Nova Hybrid has a more complex construction than the Casper Hybrid. The mattress consists of four layers:

  • 1 inch of Airscape polyfoam
  • 1.5 inches of ergonomic, 3-zoned Airscape polyfoam
  • 2 inches of 7-zoned memory foam
  • 6 inches of pocketed coils with a 7-inch foam encasement

The Nova Hybrid has a medium (5) feel. With an extra layer of zoned memory foam, the mattress is designed for targeted pressure relief. The Nova Hybrid also rates slightly higher than both the Casper Original and Hybrid when it comes to durability.

Casper Wave Hybrid

The Casper Wave Hybrid is a luxury model that incorporates specialized materials and technology for increased temperature regulation and support. The Wave Hybrid has five separate layers:

  • 1 inch of Airscape polyfoam with cooling gel
  • 1.5 inches of Airscape latex
  • 1.5 inches of 3-zoned Airscape memory foam
  • 1.5 inches of zoned polyfoam with targeted gel pods
  • 6 inches of pocketed coils with a 7-inch foam encasement

The feature that most distinguishes the Wave Hybrid from other Casper models is its zoned polyfoam layer with targeted gel pods. Dispersed throughout the polyfoam, the gel pods are engineered to adapt to the body to help ensure even weight distribution.

Casper has developed extra cooling technology for sleepers who like the feel of memory foam but struggle with overheating at night. The Casper Snow upgrades are available for the Nova Hybrid and the Wave Hybrid for an additional cost. Cooling features include phase change material in the cover and graphite HeatDelete bands. Together, these added materials are designed to help disperse heat throughout the mattress to prevent the sleep surface from growing uncomfortably warm.

Casper Element

The most budget-friendly of the Casper mattresses, the Element is an all-foam design with two layers:

  • 3 inches of Airscape polyfoam
  • 6.5 inches of base polyfoam

While the Element is the most streamlined of the Casper lineup, the dual-layer foam model is designed to contour to the shape of the body and encourage healthy spinal alignment.

Cocoon by Sealy

The Cocoon Chill Series by Sealy includes two versions: the Cocoon Chill Memory Foam and the Cocoon Chill Hybrid. While one mattress is all-foam and the other is a hybrid, both models sport the most widely preferred firmness level, medium firm (6).

As the name implies, the Cocoon Chill Series is designed to offer optimal temperature regulation. Both models feature a stretch-knit cover infused with phase change material (PCM) that is engineered to draw heat away from the body. Other features vary according to construction techniques and materials.

Cocoon Chill Memory Foam

The Cocoon Chill Memory Foam is a medium firm (6) all-foam mattress made with:

  • Stretch-knit cover infused with phase change material
  • 2-inch memory foam layer
  • 2-inch transitional polyfoam layer
  • 6-inch polyfoam base layer

Standing at 10 inches tall, the Cocoon Chill Memory Foam Mattress has an average profile for an all-foam model. The top memory foam layer offers substantial contouring and traps less heat than denser foams. The transitional polyfoam layer is moderately firm and prevents sleepers from sinking too deeply into the support core. The polyfoam also adds some bounce, making it easier to change positions. The sturdy base is made from high-density polyfoam for greater durability and spinal support.

Cocoon Chill Hybrid

The Cocoon Chill Hybrid is slightly taller due to the pocketed coil core. The mattress is medium firm (6) and is made with:

  • Stretch-knit cover infused with phase change material
  • 1 inch of Perfect Fit memory foam
  • 2.25 inches of Perfect Fit transitional memory foam
  • 8 inches of pocketed coils with .75 inch of polyfoam

The comfort and transitional layers are made from Perfect Fit memory foam, designed to mold to a person’s unique contours in order to relieve pressure buildup. The 8-inch support core utilizes individually wrapped coils to minimize motion transfer and promote airflow. The coils provide some springiness for easier movement, and firmer coils along the perimeter supply stronger edge support. Lastly, a .75-inch polyfoam layer lines the base of the Cocoon Chill Hybrid, increasing the mattress’ structural integrity.

Mattress Performance Ratings

There’s no such thing as a one-size-fits-all mattress, and it’s rare for a single model to excel in all performance areas. Among the many characteristics that determine mattress performance, your preferences and unique needs will determine which attributes you should prioritize. By focusing on the features that matter most to you, the mattress search becomes much easier.

Durability
Most people don’t want to regularly replace their mattress, which is why durability is an essential factor to consider. A durable mattress resists premature sagging and indentation. Although wear and tear is inevitable, quality materials and craftsmanship can greatly increase a mattress’ longevity.

Motion Isolation
If a mattress isolates motion well, then movement is less likely to ripple throughout the bed and disturb a sleeping partner. Motion isolation is an important aspect for couples and for those who share the bed with a child or a pet. Memory foam mattresses usually excel at preventing motion-related disturbances. Since hybrids offer extra bounce, they typically aren’t as effective at isolating motion when compared to all-foam designs.

Sex
A number of variables influence how well a mattress rates in terms of sex. Responsiveness, temperature regulation, edge support, and ease of movement are all key factors. Insufficient bounce can limit movement and make certain positions awkward or challenging, while better edge support increases surface area. Vigorous movement combined with a heat-retentive mattress may cause discomfort. Couples may also value the privacy of a mattress that doesn’t make too much noise.

Temperature Neutrality
A mattress’ ability to regulate temperature greatly influences comfort, especially if you tend to sleep hot. Hybrids are more effective at staying cool, since the coils offer plenty of room for ventilation. By contrast, traditional memory foam has a reputation for trapping heat, although various cooling technologies can be used to improve this material’s breathability.

Pressure Relief
Pressure tends to build up at the shoulders, hips, and back while sleeping, but a mattress with enough give can help cushion these sensitive areas. However, a mattress that is too soft may cause aches and pains associated with poor posture. For the best pressure relief, a mattress should strike the right balance between contouring and support. A good example is a close-conforming memory foam mattress paired with a supportive innerspring or high-density polyfoam base.

Off-gassing
New mattresses sometimes emit a chemical-like odor that can be off-putting. Termed off-gassing, the smell results when volatile organic compounds (VOCs) in certain foam materials are exposed to air. The odor isn’t usually considered harmful, and it should dissipate within a few hours to a day of the mattress being aired out.

Ease of Movement
It’s easier to move and shift positions on a springy mattress. Hybrids are usually good at facilitating movement, since their innerspring support cores provide bounce. This is in contrast to memory foam, which may conform so closely to the body that it impedes movement. Many sleepers appreciate some degree of responsiveness to prevent the feeling of becoming stuck in their mattress.

Edge Support
A mattress with a reinforced perimeter increases usable real estate on the bed. Couples often appreciate greater edge support, as do sleepers who tend to drift to the sides of a bed. Solid edges are also helpful for people with back pain or mobility issues since they make it easier to get in and out of bed. If you’re looking for a mattress with strong edge support, a hybrid or innerspring mattress is your best bet.

Casper

Casper Casper Original Casper Original Hybrid Casper Wave Hybrid Casper Element Casper Nova Hybrid
Firmness Medium (5) Medium (5) Medium (5) Medium Firm (6) Medium (5)
Durability 3/5 3/5 4/5 2/5 4/5
Motion Isolation 4/5 4/5 4/5 4/5 4/5
Sex 3/5 3/5 3/5 3/5 3/5
Sleeps Cool 3/5 4/5 4/5 3/5 3/5
Pressure Relief 4/5 4/5 4/5 4/5 4/5
Off-Gassing 3/5 3/5 3/5 2/5 3/5
Ease of Movement 3/5 4/5 4/5 3/5 4/5
Edge Support 3/5 3/5 3/5 3/5 3/5
Scroll L - R for more details

Cocoon Chill

Cocoon Chill Chill Chill Hybrid
Firmness Medium Firm (6) Medium Firm (6)
Durability 2/5 2/5
Motion Isolation 4/5 4/5
Sex 2/5 3/5
Sleeps Cool 3/5 4/5
Pressure Relief 4/5 4/5
Off-Gassing 2/5 3/5
Ease of Movement 3/5 4/5
Edge Support 2/5 4/5
Scroll L - R for more details

Pricing Information

Mattress pricing can vary dramatically, which may seem a bit perplexing at times. Cost depends on variables like mattress type, size, construction, thickness, quality of materials, and cooling features. Prices can also fluctuate based on manufacturing location, warranty and return policies, and shipping fees.

The average cost of a queen size mattress is between $1,200 and $2,000. With that said, some mattresses can run as low as $300 or upwards of $3,000. A better-quality mattress may cost more, but the odds are you won’t have to replace it as frequently.

Casper

Casper Casper Original Casper Original Hybrid Casper Wave Hybrid Casper Element Casper Nova Hybrid
Twin $595 $695 $1,595 $395 $1,195
Twin XL $695 $795 $1,795 $445 $1,345
Full $995 $1,195 $2,495 $545 $1,895
Queen $1,095 $1,295 $2,695 $595 $2,095
King $1,295 $1,495 $3,095 $795 $2,395
California King $1,295 $1,495 $3,095 $795 $2,395
Casper

Save 10% off your cart with code SF10

Scroll L - R for more details

Cocoon Chill

Cocoon Chill Chill Chill Hybrid
Twin $469 $649
Twin XL $499 $779
Full $549 $839
Queen $699 $969
King $849 $1,099
California King $849 $1,099
Cocoon Chill

Save 35% on a Cocoon Chill Mattress and get free pillows and sheets with this code: SLEEPFOUND35

Scroll L - R for more details

Casper and Cocoon Chill mattresses are fairly comparable in terms of pricing. Their price-points are typical of mattresses of this type and quality.

Casper has a greater range of models and has more variation in pricing. The least expensive mattress of the collection is the Casper Element, which has a very accessible price-point.

The next most economical Casper design is the Original Mattress. All-foam models tend to be less expensive than hybrids, and the Casper Original is priced similarly to Cocoon’s all-foam model, the Chill Memory Foam.

The Casper Hybrid is the company’s most streamlined and affordable hybrid. With four layers, the Casper Nova Hybrid offers better durability and more features than the Original Hybrid. Five interior sections and features like targeted gel pods drive up the cost of the Wave Hybrid, Casper’s luxury model. Even so, the model is still less expensive than many other high-end hybrids.

The Cocoon Chill Hybrid is less expensive than the average hybrid model and shares a similar price tag with the Casper Hybrid. While the Cocoon Chill Hybrid performs on par with the Casper hybrids in terms of temperature neutrality and pressure relief, it’s not quite as durable.

Trials, Warranty, and Delivery

Warranty Shipping
10 Year, Limited Free to Contiguous U.S. and Canadian Provinces
Warranty Shipping
10 Year, Limited Free to U.S.

Shipping

It’s helpful to review shipping details before making a purchase, as policies vary when it comes to fees, turnaround times, professional setup, and mattress removal. Many companies offer free shipping to the contiguous U.S., while deliveries to Alaska or Hawaii may incur a fee.

The Casper and Cocoon Chill mattresses are bed in a box models, meaning the mattress is compressed in plastic and then packaged inside a box for convenient delivery. The boxes are relatively easy to maneuver. Once you open the box and remove the plastic, the mattress expands to its normal size. Bed in a box models have become increasingly popular in recent years as they can be purchased online and don’t generally require assistance to set up.

If you prefer, some companies also offer White Glove delivery, which means that a professional team will install the mattress in your home. The technicians will remove any packaging for you, and may also be able to remove your old mattress.

Casper Shipping Policies

All Casper mattresses ship free of charge to the contiguous U.S. and Canadian provinces. Shipping is also available to Alaska, Hawaii, and certain international locations for an additional fee. Most mattresses are delivered within 5 to 7 days of order placement.

Casper offers optional White Glove delivery for an extra charge in select locations. After scheduling a delivery window, a technician will bring the mattress into your room of choice, unbox it, and discard the packaging. White Glove customers can also request removal of an old mattress.

Cocoon by Sealy Shipping Policies

Cocoon by Sealy offers free UPS Ground shipping for all mattress orders to the U.S. Orders are processed within 2 days and typically arrive within 5 to 7 business days. Expedited shipping is available for an extra fee.

Mattresses are compressed and shrink-wrapped for shipping. If you purchase the Sealy Ease Power Base, then your order is also eligible for free White Glove delivery.

Sleep Trial and Returns

Most bedding companies recognize that it takes some time for your body to adjust to a new bed, which is why many offer sleep trials with a mattress purchase. Even if you’ve done thorough research, you won’t know if a mattress is the right fit until you sleep on it for some time. If the mattress doesn’t meet your needs, then a sleep trial allows you to return it for a refund.

Sleep trials can be anywhere from 30 nights to 18 months, but the average length is 100 days. Some companies require that you test your mattress for a minimum period of time before requesting a return. A complimentary pick-up is often arranged by the company. In other cases, the consumer may be responsible for any return shipping fees, or the company may ask that the customer donate the mattress locally and provide a receipt. A return policy can have any number of exceptions or disclaimers, so it’s always a good idea to read the fine print before making a purchase.

Casper Sleep Trial and Return Policy

Casper offers a 100-night sleep trial for its mattresses. There isn’t a minimum break-in period, so returns can be initiated at any time during the 100-night window. Casper will issue a full refund and schedule a pick-up free of charge. White Glove service and other extra fees aren’t eligible for a refund.

Cocoon by Sealy Sleep Trial and Return Policy

Cocoon mattresses include a 100-night sleep trial, but Sealy recommends sleeping on the mattress for at least 30 days before making a decision. With that said, Sealy will provide a full refund for any return made during the 100-night period. Refunds are typically issued within 1 to 2 business days.

If you decide to return your Cocoon Chill mattress, then Sealy will arrange a pick-up at no charge to you. Depending on your location, Sealy will either recycle, donate, or discard your mattress.

Warranty

A mattress is a large investment, but a warranty can give you added peace of mind. Warranties cover possible defects in materials and craftsmanship. They do not cover damage associated with normal wear and tear.

Warranties may be either full or partial, and companies have different policies when it comes to assessing damages and handling repairs and replacements. Sometimes the customer is responsible for return shipping fees, while in other cases the company will cover the cost. Certain conditions may void the warranty.

Casper Mattress Warranty

All Casper mattresses have the same 10-year limited warranty, which is only valid for the original purchaser. Casper advises that customers retain their receipt or proof of purchase.

Depending on the nature of the defect, Casper will elect to either repair or replace the mattress. The warranty covers visible indentations of at least 1 inch , as well as splits or cracks not caused by improper use. Damage caused by abuse or by using the mattress with an insufficient foundation is not covered under the warranty. The customer is not responsible for return shipping costs.

Cocoon by Sealy Mattress Warranty

Cocoon by Sealy mattresses are backed by a 10-year limited warranty. This covers possible manufacturing defects, visible indentations deeper than 1 inch, and physical flaws, except if these are the product of improper use. Using the mattress without a proper foundation will void the warranty.

Sealy’s warranty is non-transferable, and the company will determine whether or not to repair or replace the mattress upon evaluation. Customers can also choose to upgrade to a better model by paying the difference.The customer is responsible for covering shipping costs.