Casper Mattress Review: A firm feel that’s ideal for back sleepers

Lindsay Boyers / CNET

Casper did not invent the idea of mattress in a boxBut the mattress retailer definitely put the concept on the map. Thanks to influencer marketing and social media ads, Casper became the new fashionable way to buy a mattress.

And now, with over 175 mattress players online in the retail space, Casper remains one of the top direct-to-consumer choices. But buying a mattress online can be tricky. That’s why I put the Casper Original– the most popular model of the company – tested. Here, I analyze all the characteristics of the mattress and who it is most suitable for.


  • Zoned memory foam makes it softer where you need it
  • Sleep fresher than other 100% memory foam mattresses
  • Excellent motion isolation
  • Economic

I do not like it

  • A little too firm when I sleep on my side.
  • It feels more like you are sleeping on top of the mattress, rather than sinking into it.
  • There is not enough support for anyone weighing more than 230 pounds.

Looking for a new mattress? We have recommendations for best mattresses overall, the best mattresses for side sleepers and the best mattresses for back pain.

First impressions

the Casper Original mattress It came like any other mattress in a box. It was tightly wrapped in two layers of plastic and needed to be cut open and allowed to expand until ready for testing. I lifted the rolled-up mattress over the frame of my platform bed, carefully peeling off the plastic and letting it expand. One thing I noticed right away was that it didn’t have the nasty smell that some memory foam mattresses can have, so I didn’t feel the need to leave the windows open to let the air out, which was a bonus.

However, it looked a bit mediocre. There was nothing particularly luxurious or attractive about it, although the cover felt soft to the touch. However, I didn’t want to judge it on looks alone, so I put it down to expand for the rest of the day and got to the actual tests later.

When I first got into bed, I didn’t have that “ahhh” moment that you get with fluffy, soft mattresses. I rolled onto my back and instead of sinking into the mattress, I felt like I was lying on top. However, the longer he stayed there, the more comfortable he became. As is typical with memory foam, it slowly began to sink and curl around my body, relieving my pressure points and giving a kind of weightless feeling that helps calm me down.

After several minutes, I turned onto my side and the mattress began to adjust accordingly. Memory foam generally has a delayed response time and the Casper Original was no exception to this rule, although it seemed to react faster than other memory foam mattresses I have tried. After a few seconds, the memory foam filled and contoured my body, but it still felt quite firm. However, I did notice that it was softer near my shoulders, a feature of the zoned support that is built into the midlayer.

Firmness and touch of the Casper mattress

I slept on the Casper Original mattress exclusively for 15 days and, like any mattress, it had its pros and cons. I felt incredibly comfortable lying on my back, but I could only spend so much time lying on my side before I felt like I had to change my position. If I slept on my side too long, I would wake up with a tingling in my arms, a sign that the mattress may have been too firm for me personally.

Firmness level

I would rate the Casper Original as a seven out of 10 on the firmness scale. That means it is a medium firm mattress, but a little firmer. While the mattress felt soft to the touch and definitely sagged a bit, it still gave that mattress sleeping feel that is characteristic of firm mattresses.

I’m more of a soft or medium plush mattress type of person, but if you like firmer mattresses, or if you sleep on your back and have been experiencing back pain on your current mattress, the Casper Original is a good option for you.

Motion isolation

Because the original Casper mattress is all foam and has no springs, there is no bounce at all. If you sleep with a buddy who goes round and round at night, or a large German Shepherd mix who likes to jump out of bed seven times a night, you will have absolutely no problem here. In fact, this Casper mattress is so good at isolating movement that it could probably be modeled after the “jump in bed near a glass of wine” commercials.

Edge to edge support

Thanks to the thick, high-density foam base, the Casper Original has decent edge-to-edge support, but memory foam mattresses will always be on par with hybrid or helical mattresses in this department. If you sleep on the extreme edge, the mattress will sag a bit, but you won’t feel like it is going to sag.


Unlike other 100% memory foam mattresses that trap heat, the Casper Original was designed with temperature regulation in mind. The memory foam top layer has thousands of perforations that circulate air, so instead of absorbing heat from your body and returning it to you, that heat and moisture are dispersed and released. Casper calls this Airscape technology, a trademark term. But it works?

Compared to other traditional memory foam mattresses, yes. The Casper Original seemed to sleep a little cooler. While I wouldn’t say it felt remarkably cool to the touch, like the Ghostbed, it didn’t turn into a sweat box, and that was good enough for me. Okay, I sleep pretty well overall, so overheating isn’t a problem that I deal with a lot, but my boyfriend, who sleeps like a full-blast oven, also felt warm and toasty, without waking up in a sweat.

Casper mattress construction


Matthew Ross / My Pajama Yard

When it comes to construction, the Casper Original is pretty basic, although there are a few added touches that aren’t seen with all memory foam mattresses. The mattress is 11 inches tall and is constructed with three layers of memory foam. All foams are certified by the CertiPUR-US program, which means they are made without ozone-depleting chemicals and have low emissions of volatile organic compounds.

  • The base layer is a standard high-density polyurethane memory foam that supports your body weight and the rest of the mattress to prevent sagging or sagging. Since this layer provides the foundation for the entire mattress, it is the thickest layer.
  • The midlayer is a zoned memory foam that is divided into three distinct sections designed to relieve pressure on the shoulders and cradle the hips for proper spinal alignment. This cape is softer below the shoulders and firmer around the hips, waist, and lower back.
  • The top layer is also polyfoam, although it is thinner and a more breathable foam than the base layer, thanks to thousands of perforations that allow air to circulate and heat to escape.

Everything is wrapped in a knitted polyester blend sleeve that feels soft and stretchy, almost like a jersey material. And, as an added bonus, it’s made from recycled bottles – 57 of them, to be exact – so you can sleep more soundly knowing that the mattress is at least a little sustainable.

Who is the Casper mattress best for?

Like any mattress, the Casper Original is not for everyone, but depending on your preferred sleeping position and body type, it could be the ideal mattress for you.

Sleeping position

The original Casper mattress is best suited for back sleepers or combination sleepers, meaning people who frequently switch between sleeping on their back and sleeping on their side. If you only sleep on your side or sleep on your stomach, this is probably not the best mattress for you. While zonal support offers a little extra stretch near the hips and shoulders, it can still be a bit too firm, leading to shoulder pain, numbness, and tingling in the arms and hands, if you sleep on your side. all night.

Body type

Because it is only made of memory foam, the Casper Original is best suited for those who weigh 230 pounds or less. Casper mattresses do not have official weight limit, but in general heavier people need more support in the form of springs or internal springs, which also help to ensure that the mattress does not break as quickly.

Memory foam mattresses, like the Casper Original, tend to compress more than hybrid mattresses or latex mattresses, so if you weigh more than 230 pounds, you may notice that the mattress sags and feels even firmer. , which is not so. It is ideal especially because it is firmer to begin with.

Price, test and warranty

When it comes to memory foam bed mattresses in a box, the Casper Original is pretty inexpensive. A double mattress costs $ 595 and the king, and the California king, sells for $ 1,295. However, that is probably not the price you will pay. Casper regularly runs promotions and deals, and if the time is right, you can get a new mattress for at least 10% off.

Regardless of your schedule, shipping (and returns) are always free, and you’ll get a 100-night home sleep test to give your body some time to adjust before deciding if you like the mattress. Keeping it gives you a 10-year limited warranty, but be sure to use it on the recommended bed base type; in this case, it is a firm and sturdy platform base, or the warranty is void.

The final verdict

The Casper Original is a medium firm mattress ideal for people who sleep on their backs or in combination. While you don’t get that cloudiness you would get from softer mattresses, sometimes the proper spinal alignment that you get from a firmer mattress is more important, especially if you have back pain.

You may like the Casper mattress if:

  • You are a back sleeper or combo
  • You tend to be cold at night
  • You like a medium to firm feel
  • Weighs less than 230 pounds
  • You have back pain from your current mattress

You may not like the Casper bed if:

  • It is strictly a person who sleeps on their side or stomach
  • Are you a hot sleeper or tend to be hot at night
  • You prefer a soft and luxurious feel
  • Weighs more than 230 pounds; if it’s sold at Casper you might want to try the Casper hybrid instead

The information in this article is for educational and informational purposes only and is not intended to be medical or health advice. Always consult a physician or other qualified healthcare provider regarding any questions you may have about a medical condition or health goals.

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