casper mattress review bed in a box coupon code

Casper Mattress Review

A complete and in depth review of the original Casper bed in a box mattress

If you’re at all familiar with the bed-in-a-box industry, you’ve heard about Casper. In fact, for a while, it seemed like the two were synonymous—this is one of the most popular online mattresses. But does it really live up to the hype? In this post, we’ll go over the pros and cons of Casper’s original mattress and break it down by feel, firmness, support, sleeper type, and more.

Who Is This Bed Best For?

  • Anyone looking for a really comfortable all-foam mattress at a fair price
  • Average and petite body types
  • All sleeper types (back, stomach, side, and combination)
  • Folks who like a soft neutral-foam feel
  • People that like to buy from big, well-established brands

Who Won't Love This Bed?

  • Extremely hot sleepers that want a bed with some sort of cooling technology
  • Heavier folks that should probably be getting a coil mattress
  • Anyone that wants a mattress with a lot of bounce
  • People looking for a super-cheap mattress

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Free Shipping & Returns

100 Night Trial Period

10 Year Warranty

Zoned Support Foam

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Casper Company Policies—Shipping, Warranty, etc.

The online mattress industry is established enough now that it has some pretty standard policies regarding shipping, returns, trials, and the like. You can generally assume that bed-in-a-box companies will offer free shipping, a 100-night risk-free trial period, free returns and full refunds if you don’t like the bed, or a 10-year warranty if you do. Of course, some companies do put their own spin on those terms, so be sure to read all the fine print.

Casper, however, follows those standards to a tee. To ensure that you’re fully informed, though, we do suggest that you read up on the terms of that warranty on

As for how you actually setup your new Casper mattress, here’s a quick video on the unboxing process. It’s quite simple, but since your bed is compressed and rolled up in a box, it may take you a few minutes to get everything all ready to go.

casper mattress review unboxing process for this bed
Unboxing the Casper mattress

Once you’ve removed the packaging and your bed starts to decompress, it’s a good idea to let it sit out for about a full day. This allows it adequate time to fully decompress and off-gas. Since it’s wrapped in plastic, it could have a clean smell, which is completely normal and could take a few days to leave the mattress.

Casper Price & Coupon Code

Casper beds are not the cheapest on the online mattress market, but they certainly aren’t the most expensive either. They’re at a fairly average price point and we would consider the bed a good value, all things considered. You can see a breakdown of the pricing below:

SizePrice (MSRP)
Twin XL$645
King / Cal King$1,195

We always do our best to get discounts and promo codes for you, so if we’ve got a Casper code, it’ll be in that little box on the right of your screen. Or you can check for current offers and promotions.

What Is The Casper Mattress Made Of?

Casper is an all-foam bed (as opposed to a hybrid mattress, which includes both foam and coils). The construction of Casper’s original mattress is pretty simple. It’s just four layers of foam materials—a base layer of support foam, a layer of zoned transition foam, then a layer of memory foam, and a top layer of “open-cell” foam. Altogether, you get 10” of memory, poly, and proprietary foam.

casper mattress review construction and layers coupon code
Inside look at the Casper mattress

“Zoned” layers are becoming more popular in the industry. If a layer is described as “zoned”, that means it’s more supportive in certain targeted areas, like the middle section where a sleeper’s hips and trunk would be. Casper Wave and the Rubix mattress both have a zoned support framework as well.

casper mattress review zone support system construction
Zoned Support System on Casper mattress

“Proprietary foam” just means that the company has customized a foam formulation that is specific to their brand. In most cases, that means a slightly modified poly foam or memory foam. In Casper’s case, their proprietary foam contributes to the overall soft neutral-foam feel of the bed.

All of the foams in the Casper mattress are approved by the CertiPUR-US program, which means they have low VOC, are made without ozone depleters, and just generally are not harmful for you or the environment.

Casper Mattress—Cover, Cleaning, and Care

The cover on the original Casper mattress is a nice, soft material. It’s also fitted well, so it won’t bunch up under your sheets.

The cover is pretty easy to remove, but we don’t actually suggest that you remove it because we haven’t found any definitive information stating that the cover is machine washable. The Casper site does say that the “zip-off cover is easy to clean,” but they don’t specify that you can toss it in the wash. Every other mattress brand we’ve tried that has a machine washable cover makes sure to state so in no uncertain terms, which is why we’re squinting at Casper here.

casper mattress cover and cleaning
Soft to the touch cover

If you do need to deal with a spill or stain, you can spot clean with some warm water and a bit of mild detergent. Just dab at the spot and you’re done. You do want to avoid getting the spot so wet that it soaks down into the mattress, though.

casper mattress review removable cover
Removable cover

In the case that you’re especially concerned about getting a thorough clean—maybe an accident-prone kid will be sleeping on the bed or you suffer from awful allergies that require bi-weekly deep cleans of all your linens—you can look into adding a mattress protector. There’s a huge selection of mattress protectors on Amazon. Just know that, depending on the thickness and material of the protector, it may stifle airflow through the mattress and might affect the surface feel a bit.

Now, you may be in the habit of periodically flipping your mattress, but if you get yourself a Casper, it’s time to break that habit. Casper’s foam layers are constructed in a specific order, so flipping the bed won’t work.

While you don’t need to flip the mattress, you might want to rotate it 180° every 3-6 months or so if you share your bed with a partner whose body weight is significantly different than your own. Rotating the bed will help the mattress wear more evenly over time, and that means a longer lifespan for your Casper.

Casper Mattress Feel, Firmness, and Responsiveness

The Casper mattress has a soft foam feel. Even though it does incorporate a layer of memory foam, you aren’t going to get an overt memory foam feel. You aren’t going feel like you’re really sinking into the mattress or getting “stuck in the mud”. For some folks, that’s great because they don’t like the feeling of being sucked into the mattress. For other folks, that may be disappointing because they really enjoy that stereotypical memory foam feel.


In terms of firmness, we say the Casper is a medium on our scale. That’s precisely in the middle of the soft-to-firm spectrum. Remember, though, that your body type will affect how you experience the firmness of a mattress. We’ll get into that later in this post.

casper mattress review responsiveness and combo sleepers
Highly responsive mattress

With all-foam beds, we often find that the responsiveness is on the slower side just because the mattress doesn’t have any coils to assist with the bounce-back. The Casper, however, has fast responsiveness despite being all-foam. Folks who switch positions during the night won’t have any trouble turning over and won’t leave a sunken spot behind when they do.

Is Casper Good for Back and Stomach Sleepers?

Yes, it is. Casper’s original mattress is a medium on the firmness scale (as we mentioned), which might sound too soft for back and stomach sleepers who need ample support around the hips and trunk. But we’ve found that even though the Casper isn’t a very firm bed, the combination of various foam densities makes it more supportive than you might expect.

casper mattress review sleeper type stomach back side

But again, we would note that your body type is going to affect your experience on the Casper, and we’ll talk more about that in later sections.

Is Casper Good for Side and Combo Sleepers?

Casper is good for all sleeper types, actually, including side and combo sleepers. Because it isn’t especially firm and has a soft foam feel, side sleepers will get the pressure relief they need around their shoulders and hips.

casper mattress review side sleepers combo sleepers
Great bed for side sleepers

No matter what your sleeper type, the idea is to keep your spine in proper alignment. In some cases, that means support, in other cases, that means pressure relief.

Is Casper A Good Bed for Heavier People?

Unfortunately, we’re going to have to say no on this one. The original Casper mattress is 10” thick, which, paired with the bed’s medium firmness and all-foam construction, really isn’t thick enough for heavy folks to get enough mattress between them and the foundation. There’s also a chance that sleepers with a large build will wear through the Casper faster than we think is practical for a mattress at this price point.

What About Average and Petite People?

Yes, it is. Both petite and average body types are going to get enough support on this bed, or pressure relief, if that’s what they need. It’s a nice middle-of-the-road bed in terms of feel and firmness, which makes it pretty accommodating.

casper mattress review petite and average person
Perfect for medium and petite individuals

Does Casper Sleep Hot?

No, Casper does not sleep hot, but it doesn’t sleep cool either. This bed is what we call temperature neutral.

It’s pretty common for all-foam beds to feel warmer than hybrids because all-foam constructions don’t have coils, which allow for better airflow. Plus, foam can retain the heat produced by your body while you sleep. Again, though, we’re not saying that sleeping on the Casper will be the reason you get too hot, it just isn’t going to prevent you from overheating if you’re a naturally sweaty sleeper.

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Is Casper A Good Mattress for Couples?

We do think Casper is a good pick for couples. For one, this bed has good edge support, meaning you aren’t going to get too much of that roll-off feeling if you happen to find yourself near the edge of the mattress.

casper mattress review edge support
Average to good edge support

Edge support is a feature that couples ought to consider because, more often than not, one partner ends up confined to the side of the bed while the other sleeps comfortably right in the middle.

Casper also performs well in terms of motion isolation. Good motion isolation is what keeps you from being woken up when your partner turns over or gets out of bed in the middle of the night. All-foam beds generally do a good job of limiting cross-bed motion, so we’re not really going to praise Casper for this.

It’s good, and we’re glad that it’s good—we’re just not surprised or giving it any bonus points.


Ultimately, we really like the Casper original mattress. There’s a reason it’s so popular. Part of that is good advertising, true, but it’s also because they really do make a quality, accommodating product. We’re not going to get hyperbolic and say it’s the best mattress ever and everyone will love it, but we will say that it’s a great bed and a lot of people will really enjoy sleeping on Casper.

Review Team


Kaite Johnston

Combo Sleeper


Matt Ross

Back Sleeper

Jeff Rizzo

Jeff Rizzo

Combo Sleeper

dillon lopez slumber yard

Dillon Lopez

Combo Sleeper


How did the Slumber Yard get the Casper mattress?

We were sent this mattress from Casper in order to review it. However, we did not accept any monetary payment from Casper (or any other company) to say good or bad things about this mattress.

How long does it take for a Casper to arrive once I order it?

Casper products generally ship within two business days after you place your order. From time of shipment, it can take up to five business days to be delivered to your door. Exactly how long depends on where you live. Casper also has multiple facilities that your order can ship from. So if you order more than one product, they may arrive separately.

Will Casper set up my mattress for me? Will they take away my old one?

In-home setup is not a standard part of Casper’s policies, but they do have some “In-Home Delivery & Setup” markets, which basically means they offer white glove delivery in some areas upon request. If you live in one of those market areas and opt for their in-home setup, they will also remove your old mattress.

How do I return the Casper mattress if I don’t like it?

As long as you’re within the 100-night trial period, the return process is easy. All you need to do is call the company and explain that you’d like to return your Casper mattress. They’ll work with you to have the bed picked up by a local charity or a recycling service. A full refund will be credited to your account within a couple weeks. And don’t worry—you don’t have to get the bed back in the box.

What kind of platform or frame can I put my Casper mattress on?

Of course, Casper says the best option is the Casper foundation, but what else are they going to say? Generally, with all-foam mattresses, the important thing is to use a platform or foundation that is flat and firm. You can use a slatted frame just as long as the slats aren’t bendy or too far apart (no more than 4”).

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