Leesa vs. Casper Mattress Comparison 2021

Updated on February 23, 2021 While all product recommendations are chosen independently, we may receive compensation for purchases made through our site. Learn more about how we make money here.

Leesa and Casper are two of the most successful and well-known brands in the world of online, direct-to-consumer mattresses. If you’ve done any online searching for mattresses, the odds are good that you’ve come across each of these popular mattresses.

Both Casper and Leesa have been on the market for a number of years and have thousands of satisfied customers. For this review, we’re focusing on the flagship mattresses from both Leesa and Casper rather than their other mattress offerings (such as Leesa’s Hybrid or Casper’s Wave or Essential mattresses).

Each of these mattresses is built entirely with foam. The Casper mattress is made with 4 layers while the Leesa has three. Both employ memory foam along with other types of foam designed to give the mattress a mixture of support, contouring, and bounce.

While the Casper and Leesa mattresses each have many positives, neither is universally loved. The characteristics of each make them a better fit for some sleepers than others, and in this comparison, we’ll help guide you to which may be the better match for you.

Mattress Construction Comparison

The Casper and Leesa mattresses are both made entirely of foam, but there are some distinct differences between them based on their foam types and layers.


Casper Mattress Construction

The Casper mattress is 9.5” tall and has four interior layers with a polyester cover. Each of the interior layers are foam. The topmost foam layer is 1.5” of an open-cell polyfoam that is designed to offer contouring and bounce while staying cool.

The second layer is 1.5” of memory foam intended to further enhance the contouring and pressure relief. The third layer is 1.5” of a transition polyfoam, which is firmer with less contouring and supports the top 2 layers.

Finally, the bottom layer is 5” of a support polyfoam that acts as a base for the rest of the layers.


Leesa Mattress Construction

The Leesa mattress is 10” tall and has a quilted polyester-lyrca cover. It has three interior foam layers.

The top layer is 2” of Premium Foam, which is a proprietary type of polyfoam developed by Leesa. The Premium Foam has a latex-like feel in that it is responsive to reduce pressure points but at the same time is bouncier than traditional memory foam. This Premium Foam layer has a density of 3.5 PCF and an ILD of 20.

The second layer is 2” of memory foam that has a density of 3 PCF and ILD of 9 and that adds additional contouring and responsiveness. The bottom layer is 6” of support polyfoam with a density of 1.8 PCF.

Firmness Comparison

It’s impossible to talk about finding a mattress without also talking about comfort, and central to comfort is firmness. How hard or soft a mattress feels is critical to how inviting a mattress is, and every person’s preference is different. There is no such thing as “universal comfort” (a firmness level that everyone loves), and recognizing this can help you make sure that you pick a firmness level that suits you.

Firmness is commonly described using a 1-10 scale in which 1 is the softest a mattress can be while 10 is the absolute firmest. Virtually no mattresses are produced that are a 1 or a 10 as these are extremes that are not marketable to a large body of customers. The most popular firmness level is medium-firm, which is usually around 5-7 on the typical firmness scale.

Both the Casper and Leesa mattresses are offered in only one firmness level of around a 6-7 on the typical firmness scale. While the general feel is very similar, most customers will probably find the Casper to be just slightly firmer feeling than the Leesa.

Sleep Experience

Given the similarities in their design and construction as all-foam mattresses, there are also many similarities in the sleep experience of the Leesa and Casper mattresses. At the same time, there are also some differences that may help choose between them.

Temperature Control

Neither the Casper nor the Leesa has a reputation for sleeping hot. Even though some foam mattresses have heat retention problems, both of these brands tend to avoid those issues. For the Casper, the top layer is open-cell foam, which does not retain as much heat. In addition, because the mattresses is firmer and doesn’t have excessive sink, there is generally sufficient airflow around the body to help keep you cool. Similarly, with the Leesa mattress, the amount of sink is limited by the bounce of the Premium Foam layer. This Premium Foam also typically does not retain heat as much as many traditional memory foams.

Motion Transfer

The Leesa mattress gets excellent reviews when it comes to motion isolation. Despite the bounce in the mattress, very little motion is transferred from one sleeper to the other. The Casper also does a good job of motion isolation, but it does not perform quite as well on this count as the Leesa. Both mattresses are viable for couples who want to avoid disruptions at night that come from a partner’s movement.


The Leesa and Casper are both built to be responsive, meaning that the foams in the comfort layers compress proportionally based on the amount of weight and pressure that is applied. A responsive mattress contours to the body and gives it the support where it is most needed, helping to maintain spinal alignment. This is important for people in any sleeping position. The Casper and Leesa are both responsive enough to promote this alignment, but the Casper tends to offer slightly more contouring than the Leesa.

Resilience and Bounce

In a foam mattress, after the foam compresses in response to your weight, it regains its shape when that weight is no longer being applied. Resilience is the term that we use to describe how quickly that happens. A more resilient mattress feels bouncier and is usually easier to move on top of. The Leesa, with its latex-like foam, has a very high-level of resilience. The Casper also responds quickly, but the Leesa is a bouncier option that the Casper.

Edge Support

Edge support is a potential problem issue for both the Leesa and the Casper because neither is reinforced along the edges. As a result, when the foam compresses around the edge, it can feel unstable when you are sitting or sleeping on that part of the mattress. If edge support is an absolutely critical issue for you, it may make more sense to look for a mattress with reinforced edges or that isn’t made entirely of foam.

Off-gassing and Smell

These mattresses have basically the same level of offgassing. When they are first setup in your bedroom, you can expect some minor odor that is not harmful and that should go away within a few hours or a day as long as the room is well-ventilated.

Shipping, Trial, Warranty, and Returns

The shipping, sleep trial, warranty, and return policies for the Casper and Leesa are very similar, as outlined in the table below.

Delivery feeFreeFree
How is it shipped?Bed-in-a-boxBed-in-a-box
Old mattress removal?At additional cost and only in select marketsNo
Sleep trial length100 nights100 nights
Return cost and processNo cost; company picks upNo cost; company picks up
Warranty length10 years10 years

Prices, Sizes, and Value

The prices for each size of the Leesa and Casper mattresses are listed in the table below.

Mattress SizeCasperLeesa
Twin XL$695$849
California King$1,295$1,299

The Leesa has a lower price point than the Casper at every size. Both companies often offer discounts or promotions that can further reduce the cost of a new mattress. It is usually easier to find bigger discounts for the Leesa than the Casper.

Overall, each represents a quality value when compared with many other foam mattresses on the market. Between the two, there is not a clear difference in terms of affordability or value.

Casper Mattress vs. Leesa Mattress – Which One Should You Buy?

Choosing between two mattresses that share so many features and characteristics can be a challenge. This is especially true for Casper and Leesa which both have a bevy of great verified reviews and a track record of happy customers. As a result, the following section can help give some clear ways of choosing among these two heavyweights of the online mattress industry.

Buy the Casper mattress if you:

  • Want more contouring and hug: even though the Casper doesn’t have an excessive amount of hug, it does offer more contouring than the Leesa, making it a better choice for people who prefer that type of feel.
  • Are a back sleeper: though the Leesa can also work well for people who sleep in this position, the fact that the Casper is a bit more firm can make it a better fit. This is because the majority of back sleepers find a firmer sleeping surface to be more comfortable and ultimately more supportive as well.
Casper Mattress

Buy the Leesa mattress if you:

  • Are a combination sleeper: if you’re someone who changes sleeping positions in the night, you want a mattress that is easy to move on top of and that facilitates changing positions without disruption. The bounce of the Leesa makes this possible while it’s responsiveness makes it capable of offering support to combination sleepers no matter what position they happen to be in at that time.
  • Want more bounce: the latex-like feel of the Leesa gives it a springier and bouncier feel than the Casper. This can make it better for sex and for avoiding any feeling of being “stuck” in the mattress.
  • Feel more comfortable knowing detailed mattress specifications: Leesa discloses full specifications for their mattress while Casper holds back this information as proprietary. If having this information is important for you, then you should opt for the Leesa.
  • Value a charitable mission: Leesa donates one new mattress for every 10 that they sell, which is part of the company’s commitment to giving back.
Leesa Mattress

Both the Leesa and the Casper are solid options that provide excellent performance at a reasonable price tag. Choosing one can be hard, but because both come with a sleep trial of 100 nights, you can rest assured that you can try either one while knowing that you won’t be stuck with the mattress in the event that you don’t like it.

With either choice, you’re likely to enter the significant ranks of customers who are happy and well-rested after having purchased a Leesa or a Casper.


See how the Casper compares to other mattresses: