Casper remains one of the best mattress in a box brands, even as the industry attracts new competitors. Over the past few years, Casper has continued to up its game by improving the construction of its flagship mattress, introducing new models, and even adding bed frames, pillows, and pet beds to its repertoire.
Casper's all-foam Original Mattress features an eco-friendly (yet comfortable) cover. The mattress also has foam layers offering pressure-relieving and heat-dissipating benefits.
I have tested more than 100 mattresses for our best mattress guide, including every Casper mattress (read about them in our Casper mattress review hub.) Here are my experiences with the Original Mattress.
The Casper Original Mattress has a medium-firm feel with excellent support right to the edge, and it will keep you cool through the night.
What we like
What we don't like
Design
The Casper Original Mattress has three CertiPUR-US-certified foam layers:
- "Airscape" perforated breathable foam – This top layer increases airflow for a cooler sleep and offers pressure relief.
- Zoned support memory foam – The middle layer provides more relief and helps align your spine with three ergonomic zones that are softer under the shoulders and firmer around the lower back, waist, and hips.
- Durable base foam – The thickest layer offers support by preventing sagging and sinking.
The mattress also has a cover of recycled polyester, recycled bottles, and upcycled cotton, rayon, and lycra. Appearance-wise, the covers are fairly consistent across Casper models.
Our review of the Casper Original Mattress
Setup
The Casper Original Mattress arrives at your door in a box the size of a mini-fridge and — in the case of the queen — weighs about 85 pounds. Get a friend to help you move it around. Casper also offers in-home setup for a fee.
The unboxing process is simple and intuitive. You open the box, remove the wrapped mattress, place it on your bed foundation, unwrap the outer plastic layer, carefully tear or cut open the inner layer of plastic, and give the bed time to expand.
The mattress is meant to go on just about any foundation, though since it's an all-foam mattress, you'll want to make sure it has as much direct support under it as possible.
The mattress has the usual "new bed smell," so I'd recommend unboxing it in the morning and allowing it to air out before you put sheets on it. This will also give the mattress time to expand.
Comfort
The Casper Original is slightly firmer than average. I preferred to sleep on my stomach to take pressure off my back, but this mattress was also comfortable when I was on my side. My back-sleeping wife found it suited her style.
It has impressive pressure relief thanks to the zoned support layer, which is not commonly found in mattresses at this price point. It helped the Casper Original earn a spot in our best foam mattress guide as the best for pressure relief.
Heat dissipation
To test heat dissipation, we record the mattress's temperature before and after laying down. We also take note of our experience sleeping on the mattress throughout the night.
The Casper Original stays nice and cool, even after laying down. This was a relief since I tend to be a hot sleeper, and memory foam usually traps heat. The breathable top layer allowed for good airflow.
Edge support
If you find yourself sleeping near the edge of the bed or sit to put on your socks and shoes in the morning, you'll need good edge support. Good edge support ensures that you feel comfortable, without fear of toppling off the mattress.
The edge support of the Casper Original was lacking. When I sat on the edge of the bed, it sagged significantly. And, when I rolled onto the very edge of the bed, I quickly fell off.
Motion isolation
The motion isolation — or the amount that motion is dampened throughout the mattress — of the Casper Original Mattress is great. The mattress passed my motion transfer test with flying colors. I placed a soda can in the center of the bed and dropped a 15-pound bowling ball so it landed 12 inches away. The can stayed upright each time. This approximates what it might be like to have a partner tossing and turning in bed. You're unlikely to be disturbed on this mattress.
Trial and warranty
Sleeping on a mattress is the only way to know it's right for you. That's why Casper offers a 100-night, risk-free trial. If you try the mattress and find it isn't right for you, contact Casper, and they will work to have a local charity or recycling center pick it up. You then get your refund within two weeks, and no shipping or hidden restocking fees are removed from the refund.
The Casper Original is backed by a 10-year limited warranty that covers major indentations, manufacturing defects, physical flaws, and deterioration that may occur despite using a supportive foundation, proper handling, and normal usage.
Cons to consider
Like I said, the edge support of this mattress was poor. This could be a dealbreaker for people who gravitate towards the side of the bed at night.
One morning while testing the mattress, I awoke with back pain despite feeling fine when I went to bed. This is an intermittent problem, and I hesitate to blame the mattress. My back gradually improved as I continued to sleep on the mattress. That said, the mattress probably isn't perfect for back pain sufferers. Instead, check out our best mattress for back pain guide.
What are your alternatives?
Casper did a major overhaul of their product line in February of 2024, so there are plenty of new options to choose from. The brand's new, upgraded flagship foam mattress is The One. Like the Original Mattress, the One Mattress is made of memory foam layers for optimal support. Or, if you're looking for a cooling mattress, the Snow Hybrid is designed with "heat delete" bands to keep you comfortable all night.
For a foam mattress outside of the Casper brand, I recommend the Tempur-Cloud Mattress by Tempur-Pedic. This mattress is also our pick for combination sleepers in our best mattress guide. If you're looking for a budget pick, the Allswell Mattress is under $500.
The bottom line
Overall, I enjoyed the Casper Original Mattress. My favorite parts were the firmness that worked for my sleeping positions and the breathable, open-cell memory foam that kept me cool at night.
You'll have difficulty finding a better all-foam mattress than the Casper Original. It works for a broad range of sleepers and is designed to offer supportive pressure relief. Though several mattress brands are more affordable, Casper has the benefit of being a juggernaut in the industry. This means they will likely be around to honor the 10-year warranty that comes with the mattress.
Considering all of these factors, we recommend buying the Casper Original if you're looking for an excellent, reliable mattress that will last you for a decade or more.
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Disclosure: Written and researched by the Insider Reviews team. We highlight products and services you might find interesting. If you buy them, we may get a small share of the revenue from the sale from our partners. We may receive products free of charge from manufacturers to test. This does not drive our decision as to whether or not a product is featured or recommended. We operate independently from our advertising team. We welcome your feedback. Email us at reviews@bjinnox.com.
