Main Features
Our team has researched and reviewed the Casper Atlas Hybrid Mattress. We believe that it’s main features include:
- Steel pocket coils provide superior support, right to the very edge of the mattress
- Topped with Casper Signature Foam for bounce and responsiveness
- Lab tested to ensure high degree of breathability and cooling
- Reduced motion transfer
- High-quality hybrid mattress at an accessible price point
- Free shipping, risk-free trial and 10-year warranty

How the Casper Atlas Hybrid Mattress is Made
With a pocket coil core and three foam layers, the Casper Atlas Hybrid Mattress is built to provide long-lasting comfort and support. Below we share what we learned about its construction.
Soft and Stylish Knit Cover
With a slight stretch and a soft texture, the polyester/spandex knit cover provides a cozy feel. The heathered white top and waterfall edge add style. The sides of the cover are made of two-thirds woven fabric and one-third heathered charcoal colourblock fabric. A heat-stamped Casper logo ties it all together.
Casper Signature Foam
The Casper Signature Foam cushions your body and relieves pressure in sensitive areas such as the shoulders and hips. As you change your sleep position, the 1.5-inch layer adapts to your every move. Like all of the foam layers in this mattress, it’s breathable and stays cool.
High Quality Transition Foam
The next layer creates a smooth transition from soothing Signature Foam to supportive pocket coils. The soft, breathable High Quality Transition Foam provides 1.5 inches of motion isolation for a sound sleep.
Pocket Coils
The 6-inch layer of steel pocket coils offers edge-to-edge support. The individually wrapped coils are reinforced to provide enhanced support around the edge of the mattress. Depending on the mattress size, the number of coils ranges from 420 in a twin mattress to 960 in California king size.
Additionally, the pocket coils prevent motion transfer and permit air circulation to keep you cool and dry.
ProSupport Foam Base
The 6-inch base is made of durable ProSupport Foam that evenly distributes weight and prevents sagging. It helps keep your spine properly aligned by preventing your body from sinking too low into the mattress.
Firmness Level
The medium-firm feel is suitable for a wide range of sleep preferences. It offers enough softness for side sleepers and ample support for back and stomach sleepers. If you and your partner or spouse can’t agree on the best firmness level, the not-too-soft and not-too-firm Casper Atlas Hybrid may be an ideal choice.
Choose Your Preferred Mattress Size
Do you need a mattress that will fit a small apartment bedroom? Or maybe you’re looking for a spacious mattress with plenty of room for you and your partner. At 10 inches thick, the Casper Atlas Hybrid mattress is available in a size that will suit your sleep needs:
- Twin: 37.5″ W x 74.5″ L x 10” H
- Twin XL: 37.5″ W x 79.5″ L x 10” H
- Full: 52.5″ W x 74.5″ L x 10” H
- Queen: 59.5″ W x 79.5″ L x 10” H
- King: 75.5″ W x 79.5″ L x 10” H
- Cal King: 71.5″ W x 83.5″ L x 10” H
Casper Atlas Hybrid Mattress: Benefits and Any Drawbacks
Now let’s take a closer look at what it’s like to sleep on this mattress. We have researched and reviewed the Casper Atlas Hybrid Mattress. Below we share our opinion of its benefits as well as any drawbacks.
Balance of Support and Comfort
The Casper Atlas Hybrid offers the balance of comfort and support one would expect from a top hybrid mattress. The three foam layers and pocket coil core combine pressure relief and consistent, edge-to-edge support. The medium-firm feel ensures a just-right surface that will work for most sleep positions. You can stretch out and enjoy soothing comfort and responsive support from one end of the mattress to the other.
Breathable Materials
If you sleep hot, we think you’ll appreciate how the breathable layers keep the Casper Atlas Hybrid mattress cool. Unlike traditional foams, the foam layers in this mattress are made of breathable polyurethane that allows air to circulate. The pocket coils also promote cooling air flow. Thanks to the breathable materials, a good night’s sleep is no sweat with the Casper Atlas Hybrid.
Edge Support
Solid edge support is an important feature that makes it easier to get in and out of bed, and the Casper Atlas Hybrid does not disappoint. We like how the pocket coils are reinforced along the edge of the mattress. The result is support across the entire mattress, without sagging around the perimeter.
Motion Isolation
The pocket coils and foam layers prevent motion from transferring from one side of the mattress to the other — a great feature for couples. The responsive Signature Foam and High Quality Transition Foam adapt as you change your sleep position. The individually wrapped coils also move with you. That means that your partner won’t be disturbed if you’re restless or have to get out of bed.
Resists Sagging
There’s even more support from the ProSupport base. This durable layer resists the dips and sags that can occur in some mattresses over time. With consistent and lasting support from this 6-inch base, the mattress helps maintain alignment in your shoulders, hips, and spine.
Safe for Your Home and the Planet
Canadians can have peace of mind knowing that the Casper Atlas Mattress is safe for the home. It’s CertiPUR-US certified, which means it is safe from formaldehyde, phthalates, and other toxic substances. It also meets strict indoor emission standards for volatile organic compounds (VOC). We applaud the fact that besides comfort and support, the mattress is good for the planet, too.
100-Night Sleep Trial
Even the best hybrid mattress requires an adjustment period. It can take at least 30 days to get used to a new mattress, so the Casper Atlas Hybrid comes with a 100-night sleep trial. After the first 30 days after delivery, you can return the mattress for a full refund, free of charge, during the 100-night trial period. Having more than three months to try the mattress at home helps take the pressure off this major purchase.
Mattress In a Box
Convenience is a definite benefit when it comes to shopping for the best hybrid mattress. The Casper Atlas Hybrid is shipped compressed, rolled, and packed in a box to your door. There’s no need to schedule a delivery time and sit around for the truck. Even if you’re at work, your mattress-in-a-box will be waiting for you when you get home.
You will, however, have to wait a few hours for the mattress to fully expand. You might also notice an odour or off-gassing after unboxing, which is normal and should dissipate after 24 hours.
10-Year Limited Warranty
Casper backs their Atlas Hybrid Mattress with a 10-year limited warranty. Before making your purchase, always read the warranty terms, which may occasionally change.
The warranty covers manufacturer and material defects, such as degraded or torn foam. Casper will repair or replace a mattress that is found to have defects that are covered by the warranty. What’s more, you don’t have to pay a fee for the repair or replacement.

Casper Atlas Hybrid Mattress: Final Thoughts
Casper has created a premium hybrid mattress at a price that is easier on the wallet. With quality materials such as Casper’s Signature Foam, the Atlas Hybrid Mattress provides optimal support and comfort.
We like how the three foam layers work together to relieve pressure and prevent motion transfer. All of the foams are made of breathable polyurethane, which allows airflow to carry heat away from the mattress. The foams cushion your body without trapping heat. Plus, the mattress has a motion isolation feature that lets you sleep, even when your partner is toss and turning.
The pocket coils offer support as well as responsiveness and air circulation. The reinforced edges ensure consistent, end-to-end support. Additionally, we’re impressed with the stability and evenly distributed support provided by the ProSupport base.
The Casper Atlas Hybrid gives Canadians several reasons for peace of mind about their purchase. First, the foams are all certified safe from toxic chemicals and VOCs. Secondly, the mattress comes with a 100-night sleep trial that lets you try the mattress at home for more than three months. Then there’s a 10-year limited warranty that covers defects caused by poor manufacturing or materials.
We think you’ll like the convenience of a mattress in a box. Just be aware that you’ll have to wait for the Atlas Hybrid to expand, and you may want to air out the mattress to get rid of a temporary odour.
In our opinion, the Casper Atlas Hybrid Mattress is a quality product that offers value. If you’re looking for premium hybrid mattress features at an accessible price, you may want to consider this mattress. After our research and review, we believe we can recommend it to Canadians who are shopping for a top hybrid mattress.