Casper Vs. Puffy Mattress Comparison – How Do You Choose?

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If someone has been looking to get a mattress online, they have definitely come across Casper and Puffy, which are two very popular brands.  To help people decide which one to get, this guide will go through the construction of both mattresses, as well as highlight the main similarities and differences between them.

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  • Save 10% on a Casper mattress by clicking the button below. 
  • Features a balanced foam feel. 
  • A great match for combination sleepers. 

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  • Click the button below to save $300 on a Puffy mattress. 
  • The Puffy features a classic foam feel. 
  • Should be a great match for lighter side sleepers. 

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Key Similarities

  • They are both popular mattresses that similarly priced.
  • They have similar thicknesses and base layers. and both mattresses incorporate memory foam into their construction.

Key Differences

  • Their materials and constructions are quite different, and overall the Casper is softer than Puffy.
  • The Casper has a zoned construction, while the Puffy has a uniform feel throughout the mattress.
  • The Casper has a balanced foam feel, while the Puffy has a classic memory foam feel where the sleeper slowly sinks into the mattress.

The inside of an all-foam mattress.

Casper Construction

  • The Casper is 10” tall and features four separate layers.
  • The cover is soft, cool, and thin and doesn’t affect the feel of the mattress too much.
  • The thin cover allows you to easily feel the soft upper layers of the mattress.
  • The first layer of the Casper is 1.5” of a latex-like foam that is soft and add some bounce and breathability to the mattress.
  • Below this is 1.5” of memory foam, which adds pressure relief and contouring to the mattress.
  • The next layer is 1.5” of a zoned transition foam that is firmer and more supportive in the middle and softer underneath the shoulder area.
  • The base layer is 5” of a durable support foam, which is pretty standard on the market.

To learn more about the Casper, read the full Casper mattress review, available here.

A mattress is opened to show its layers.

Puffy Construction

  • The Puffy is 10″ tall and consists of two main layers
  • The cover is thin and also doesn’t really affect the mattress feel too much
  • The comfort layer is 4” of a gel memory foam that is soft and has great body contouring.
  • The base layer is 6” of polyfoam, which is also pretty standard on the market.

To learn more about the Puffy, read the full Puffy mattress review, available here.

Construction Differences/Notes

  • The Puffy has a simple construction and a  top layer that is 4” of soft memory foam. This should allow people to sink in and sleep more “in” the mattress (rather than on top of it).
  • The Casper has a zoned transition layer, which means it is firmer under the hips and softer around the shoulders. Because of this, it could be a great match for multiple sleeping positions. It will be firm enough to support people when they are on your back and stomach, but they should still feel good pressure relief when they are on their side.
  • The firmness of the Puffy really has to do with someone’s weight. Heavier sleepers may press into the mattress and engage the firm support layers. The mattress will feel firmer in this case than it will to a lighter-weight sleeper who might not press in as far.
  • The Casper should be more breathable than the Puffy. The Puffy has a thick layer of memory foam on top, which can trap heat. The Casper’s top layer is open-celled, so it should dissipate heat. People should be sleeping cooler on the Casper as a result.

Firmness/Feel Differences

In my experience, the Casper is a 6/10 in terms of firmness and the Puffy feels like a 6.5/10.

Note that I weigh 160 lb. Larger sleepers might find the Puffy feels firmer as they press through the soft upper layers and engage the support layers beneath. On the other hand, lighter-weight people may think the Puffy is softer.

Here’s how it felt on the Casper:

  • Back sleeping on the Casper, I feel very well supported, because the zoned construction ensures my hips don’t sink in too far.
  • When I am on my side, I feel comfortable. The shoulder area of the mattress is softer, so I don’t feel too much pressure there.
  • On my stomach, the firmer center area supports my hips, so it’s a pretty good match for me.

This is how it felt on the Puffy:

  • I feel decently supported when I am on my back. The memory foam conforms to the shape of my body, and I don’t feel like my hips are sinking in too far. However, I will say the lumbar and back support is far superior on the zoned Casper mattress.
  • When I am side sleeping, the Puffy feels the most comfortable, because I sink into that soft memory foam and feel almost no pressure on my shoulders and hips. I think that most light- to medium-weight side sleepers will agree the Puffy features better pressure relief. Again, heavier people may press further into the mattress and have a different experience.

The Casper has a balanced foam feel overall where the top latex-like foam layer is soft but responsive. Also, the transition layer keeps me from sinking in too far. I get some of that foam feel without getting “stuck” in the mattress. There is also a bit of bounce, so it is quite easy to move around on the Casper.

The Puffy has more of that classic memory foam feel. I slowly sink into the mattress and feel it envelop me. There is very little bounce, and it can be difficult to move around on the Puffy.

In the end, I sleep on top of the Casper and inside the Puffy.

See more about Casper’s balanced foam feel in the video below.

Compare this to the quicksand feel of the Puffy mattress in the video below.

Motion Transfer Differences

While both of these mattresses have memory foam in their design, the Puffy has one thick layer right on top. It is because of this that the Puffy handles motion transfer better than the Casper.

During my tests, I placed a glass on the Puffy and pressed into the surrounding area and the glass was barely disturbed. Also, when Marten moved around on the other side of the mattress, I could not feel his motion on my side of the mattress.

If someone sleeps with a partner, they shouldn’t feel their movements transfer over to their side of the mattress. Between the two mattresses, the Puffy should be the better mattress for couples who don’t want to be disturbed by their partner’s movements.

See how the Casper handles motion transfer in the video below.

Now see how the Puffy’s thick comfort layer cuts down on motion transfer with the video below.

Edge Support Differences

Overall, the Casper features better edge support than the Puffy.

While the Casper feels softer to me, it is still the more supportive mattress. The zoned construction and multiple layers of foam ensure the mattress doesn’t collapse too much when I sit near the edge. On the Puffy, the mattress collapses quite a bit when I sit in the same position.

Lying down near the edge of the Casper, I feel secure and don’t feel like I am going to roll off. Lying near the edge of the Puffy, I do feel like I might be ejected from the mattress.

People can see the differences in edge support in the photos below.

A man sits on the edge of his mattress.

A man sits on the edge of a foam mattress.

Marten’s Take

Marten is a staff writer for us and has a much different body type than me: He is 6’7″ and weighs about 230 lb; I am 5’9″ and 160 lb. Here is what he thought about these mattresses and how appropriate they are for heavier sleepers:

For me, the Casper was a 7/10 and the Puffy was a 7.5 or 8/10. My experience was definitely due to my size. Often, with foam mattresses, I will press in more than Joe does, so they will feel firmer to me. I think this is why the Puffy feels firmer to me than it did to Joe.

Over on the Casper, there is the zoned construction, and because of that, I feel very good support on my back. My hips don’t sink in too far, because that area is the firmest part of the mattress. When I am on my side, I am feeling some firmness on my shoulders and hips, but less than I feel on the Puffy. On my stomach, I feel well supported.

The Puffy does not have a zoned construction. While I feel decent support when I am on my back, I am not as supported as I was on the Casper. When I’m on my side, I’m pressing too far into the mattress and feeling some serious pressure on my shoulders and hips. On my stomach, the mattress is not firm enough, so I am bowing in at the hips.

Overall, if someone is a heavier-weight sleeper, they should lean toward the Casper.

Marten’s experiences make sense for a number of reasons. He is larger, so he pressed through the soft top layer of the Puffy. He hit the firm support layer, so when he was side sleeping, he felt pressure on his shoulders and hips. I agree that heavier people like Marten should consider the Casper over the Puffy.

Who Should Pick Casper…

  • Combination sleepers- The Casper should definitely be the more supportive of these two mattresses, because it has a zoned construction that should keep the hips from sinking in too far, so if people sleep on their back or stomach, they should stay in better alignment on the Casper. At the same time, the shoulder area is soft, so people should feel good pressure relief when they are on their side.
  • Heavier sleepers- The Casper has more layers, including a transition layer, and in addition it has a zoned construction. This should ensure that heavier people don’t press through the mattress and “bottom out” and feel the firmness of the support layer underneath.
  • Those who prefer a balanced foam feel- If someone likes a foam feel but doesn’t want to get “stuck” in their mattress, the Casper should be the better choice. The transition layer and zoned construction ensure people don’t sink in too far, so it should be easier to move around overall.

Who Should Pick Puffy…

  • Those who like a classic foam feel- If people like to sink into their mattress and feel enveloped, the Puffy is the way to go, because it has that slow, quicksand memory foam feel.
  • Light- or medium-weight side sleepers- As long as people aren’t too heavy, they should feel great pressure relief on the Puffy. They should sink in and feel little pressure on their shoulders and hips, so side sleepers who are lighter should feel very comfortable.


Even though these are both all-foam mattresses, they are designed for different types of sleepers, so the decision should be clear which to get.

If someone is a back or stomach sleeper or are on the heavier side, the Casper is a clear choice. If someone is a light- or medium-weight side sleeper and like memory foam, the Puffy should work for you.  Consumers should read through this comparison multiple times, assess their own needs and preferences, and then make an informed decision.

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Joe Auer

Joe Auer is the editor of Mattress Clarity. He mainly focuses on mattress reviews and oversees the content across the site.

He likes things simple and take a straightforward, objective approach to his reviews. Joe has personally tested nearly 250 mattresses and always recommends people do their research before buying a new bed. He has been testing mattresses for over 5 years now, so he knows a thing or two when it comes to mattress selection. He has been cited as an authority in the industry by a number of large publications.

Joe has an undergraduate degree from Wake Forest University and an MBA from Columbia University.

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