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Leesa vs Purple vs Casper (2021): Which Mattress Should You Buy?

Leesa, Purple and Casper are some of the top names when it comes to online mattresses. All three of them are online-only brands that offer a bed-in-a-box selling model that allows them to eliminate extra overhead costs. As a result, their mattresses are very affordable and they’ve been been very popular with mattress shoppers.

In this Leesa vs Purple vs Casper comparison, we’ll be looking at the Leesa Original, the Purple mattress and the Casper Original Foam, since these are their best-sellers, and, there are some similarities between them.

Leesa vs Purple vs Casper Comparison Chart

MattressLeesa OriginalPurple MattressCasper Original
 Amazon productAmazon productAmazon product
PriceAmazon productAmazon productAmazon product
MaterialsLSA200 Foam
Memory Foam
Polyurethane Foam
Hyper-Elastic Polymer Purple Grid
Polyurethane Foam
Proprietary Airspace Foam
Memory Foam
Polyurethane Foam
FirmnessMedium (6/10)Medium Firm (7/10)Medium (6.5/10)
Available SizesTwin, Twin XL, Full, Queen, King, California KingTwin, Twin XL, Full, Queen, King, California KingTwin, Twin XL, Full, Queen, King, California King
Sleep Trial100 Nights100 Nights100 Nights
Warranty10 Years10 Years10 Years
Other ModelsHybrid
Hybrid Original
Nova Foam
Nova Hybrid
Wave Foam
Hybrid Premier
Kid Mattress

Mattress Construction

All three mattresses feature a 3-layer design and all of them use proprietary foams.

Layer breakdown for the Leesa Original (left), Purple (middle) and the Casper Original Foam (right).

Leesa Original Construction

The Leesa Original is a 10-inch mattress that comes with a soft polyester cover. It’s comfort layer is made from their proprietary LSA200 foam, which is very similar to latex. It provides good pressure relief, responsiveness and it is perforated, for improved airflow.

Below it is the memory foam layer that allows you to sink into the mattress. Since it is in the middle layer, the “sinkage” is not too deep, allowing for easier movement and reduces heat trapping. At the base is a thick layer of high density polyfoam for durability and added support. It prevents the mattress from sagging.

Purple Mattress Construction

The Purple mattress is 9.5 inches thick and it comes with a soft polyester-viscose blend cover. The top layer is their proprietary Purple Grid, made from hyper-elastic polymer. This layer is very bouncy, meaning that it is very easy to move, even when laying down. It also gives great pressure relief. The mattress comes with a foam encasement at the edges of the Purple Grid, for edge support.

Below the Purple Grid are two layers of soft and firm polyfoams. The middle layer acts as a transition layer that also gives the sleeper additional support. The base layer is for durability and it supports the whole mattress.

Casper Original Foam Construction

The Casper Original foam mattress is an 11-inch mattress and it is covered with a thin polyester cover that is very soft and breathable. At the comfort layer, you’ll find their proprietary Airspace foam that is very similar to Leesa’s LSA200 foam. It is very responsive and also provides good pressure relief. The foam is perforated as well, to allow air to pass through.

In the middle, Casper uses a memory foam with three ergonomic zones. The upper and lower zones are softer and the middle zone is a bit more firm, so that your spine is properly aligned when you sleep. The bottom layer features a thick polyurethane foam for additional support and durability.


The Leesa Original is the softest of the three mattresses—with a medium rating.

A look at the Leesa Original.

The Leesa Original is a medium mattress that is great for side sleepers or those that frequently change positions while they sleep. The LSA200 and memory foam layers work tremendously well together for comfort. You won’t sink in too much, allowing for easier movement and less heat.

The Purple mattress is a medium firm mattress that is best for back and stomach sleepers. It is very bouncy due to the use of the hyper-elastic polymer in the comfort layer. Pressure relief is also very good even though the mattress won’t let you sink. You will feel more on top of the mattress instead of in the mattress.

Casper’s firmness is somewhere in the middle of the Leesa Original and the Purple mattress. As such, it is great for all types of sleepers, although back and stomach sleepers will have a much better time with it, as it is a bit on the firm side. You won’t sink too much with this mattress as well, due to the memory foam being in the middle layer.


All three mattresses are very similar when it comes to performance

Closer look at the Purple mattress.

So far, all three mattresses are very similar, especially when it comes to their firmness levels. In this section, we’ll take a look at how they perform in different areas, so that you can have an easier time deciding which one will better suit your preferences.

Motion Isolation

Since all three mattresses are made with foam, motion isolation is very good for all of them. However, if we had to rank them, it’s a tie between Leesa and Casper as far as which one offers the best. The Purple mattress is still good, however, it is not as good as the other two.


When it comes to sleeping cool, the Purple mattress comes out ahead. The Purple Grid of the Purple mattress is great for airflow. Also, the lack of memory foam in the mattress reduces heat trapping issues. As for the other two mattresses, they also do a good job when it comes to cooling. It’s just that when compared to the Purple mattress, they fall short.


For responsiveness or bounce, all three perform very well. However, the Purple mattress has the slight edge due to its hyper-elastic polymer material.


Since all of these will come delivered in a box or a bag, expect some chemical smell when you open them. The smell is not dangerous, just a minor inconvenience, and it will be gone in a few days.

Warranty and Other Considerations

Leesa, Purple and Casper offer 10-year warranties for their mattresses.

The Casper Original foam mattress with box that it comes in.

For warranty, Leesa, Casper and Purple all offer the industry standard of 10 years. All three companies also offer a sleep trial of 100 nights, from the day you receive the mattress. Since it takes a bit of time for your body to adjust to a new mattress, Leesa encourages you to try the mattress for at least 30 days before initiating a return and Purple recommends at least 21 days. If you’re still not satisfied, you can contact their customer service and they will instruct you on what to do.

As for pricing, the cheapest of the three is the Leesa Original, with the Casper not too far off. The Purple mattress is the more expensive option but the price difference between all three is not too wide.

All mattresses are made with CertiPUR-US certified foams, meaning that they are safe to use. It also means that the materials went through several tests to make sure that they are up to standards. Shipping is free for all three mattresses.


If you are on a budget, the Leesa Original is the best choice. The Casper is great for people that frequently change positions while sleeping and the Purple mattress is recommended for people that sleep hot.

Amazon product

If budget is the most important factor, the Leesa Original is the best option as it is the least expensive among the three. It is also the softest so it’s best for people that primarily sleep on their sides.

If you don’t particularly like the sinking sensation that comes with memory foam but you still want a mattress that provides great pressure relief, the Purple mattress should be on your list. It’s a very bouncy mattress that’s also great when it comes to temperature regulation due to how it is designed.

The Casper Original Foam mattress is the most balanced when it comes to pricing and performance. It’s great for people that change positions frequently while they sleep. Pricing is a bit higher than the Leesa mattress, but lower than the Purple mattress. It has very good cooling, motion isolation and responsiveness.


๐Ÿ“Œ Is Leesa better than Purple?

If you are a side sleeper, Leesa is better, however, if you sleep mostly on your back or on your stomach, the Purple mattress is better.

๐Ÿ“Œ Which is better: Casper vs Leesa?

These two are very similar, which one is better will come down to your preferred firmness, as well as your budget. The Leesa Original mattress is a medium, while the Casper Original is medium-firm.

๐Ÿ“Œ Is Casper better than Purple?

It depends on what you want in a mattress. If you prefer a medium-firm mattress, then yes, Casper is better than Purple. However, if you want more bounce, responsiveness or better cooling, the Purple might be the better choice.

๐Ÿ“Œ Is Leesa good for side sleepers?

Yes, Leesa is great for side sleepers as they offer mattresses with a medium rating when it comes to firmness. The Leesa Original, in particular, is a great mattress for side sleepers.

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Carlo Salvador

Senior Editor at Compare Before Buying. Writer and researcher passionate about fitness, gaming and music.