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Casper vs. Emma

Casper Vs. Emma Mattress Comparison - UK (2023)

Last updated: 31.10.2023 Reading time: 7 Min.

The Casper mattress from the USA and the Emma mattress from Germany are both award-winning bed-in-a-box mattresses.

Casper's Original foam mattress is even one of the world's most popular online mattresses. 🌎

How does the Emma Original compare to its New York counterpart?

And which one is best suited to you?

We put the two to the test in this Casper vs Emma mattress comparison. 🤼‍♀️

Note: Casper mattress UK is no longer available, so we've listed a few fitting Casper mattress alternatives throughout this article.

Let's dive right in. 👇

Casper Versus Emma

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Our mission is to take the guesswork out of finding the perfect sleep products.

We've dedicated hundreds of hours to testing mattresses and sleep accessories, and rely on a team of testers of differing weights, temperature preferences, and sleeping positions to evaluate each product. 

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Emma Original vs Casper Original mattress comparison

The Casper mattress and the Emma mattress are two high-quality products. ✨

If you're interested in reading our full reports, head over to the reviews below:

Here, you'll find a quick overview of the key differences between the two mattresses.

Emma Original Casper Original
Type of mattress Memory foam mattress Memory foam mattress
Mattress height 25 cm (10 inches) 24 cm (9.4 inches)
Foam layers

3 foam layers:

Airgocell foam

Viscoelastic memory foam

HRX polyfoam

3 foam layers:

Perforated AirSpace foam

3-zoned memory foam

Durable base foam

Firmness Soft Medium-firm
Stability & support An orthopaedic choice that offers good stability and support, especially for side sleepers Good stability & support for a wide range of sleeping positions
Suitable for

Light- and average-weight sleepers

People who like a soft mattress

Side sleepers

Light- and average-weight sleepers

All sleeping positions

Restless & hot sleepers

Temperature Very good temperature regulation Excellent temperature regulation
Motion isolation Very low motion transfer Very low motion transfer
Mattress cover Hypoallergenic cover that's removable & machine-washable at 60℃ with 4 side carrying handles Comfortable cover that's not removable or machine-washable
Purchase 20% OFF EMMA ORIGINAL PLUS + 5% OFF W/ "SLEEPHEROUK5" Not available in the UK

These mattresses are very similar in terms of composition, even though the Casper Original has a slightly firmer feel than the Emma Original.

Emma original foam layers
The Emma Original and the Casper Original are both three-layered foam mattresses.

Casper vs Emma: Which mattress is best suited to you?

The Emma mattress and the Casper mattress are both excellent mattresses that offer exceptional pressure relief. 👌

But, they are also suited to slightly different types of people.

Let's take a closer look at this. 🧐

Emma Original: Excellent support for side sleepers

The Emma mattress is a fair bit softer than the Casper UK.

You'll immediately notice that you'll sink slightly deeper into Emma's foam layers. ⛰

This is great news for side sleepers, as it ensures optimal spinal alignment.

The Emma Original also has exceptional body-contouring support and orthopaedic qualities.


emma original side sleeper
The Emma Original is well-suited to side sleepers.

The one drawback of this body-hugging comfort is that moving around on the Emma mattress becomes a little more cumbersome. 💃

We wouldn't recommend the Emma Original for restless sleepers.

Conveniently, though, the Emma comes with a removable & machine-washable mattress cover. 🚿

Choose the Emma Original if you:

  • Are a light- or average-weight sleeper.
  • Want a mattress with orthopaedic properties.
  • Sleep on your side.
  • Prefer soft mattresses.
  • Want a no-fuss mattress with a removable and machine-washable cover.

The Emma Original will be less suitable if you're of a larger build and a pure back or stomach sleeper, a heavier sweater, or a very restless sleeper.


Emma original mattress cover
The Emma mattress cover is easy to remove.

Casper Original: Firmer feel & excellent breathability

The Casper mattress has a slightly firmer feel than the Emma Original.

Given its extra breathable AirSpace layer with thousands of tiny perforations, it also offers enhanced breathability that makes it better suited to hot sleepers. ❄️

The AirSpace layer also decreases the "sinking into the foams" feeling that's commonly associated with memory foam mattresses.

This means the Casper mattress is easier to move around and more comfortable for restless sleepers.

casper original mattress
It's best to use a mattress protector with your Casper Original. © Casper Sleep

On the downside, the Casper mattress cover is not removable or machine-washable. 🛀

If you have a Casper, we'd recommend investing in a mattress protector to safeguard your mattress against stains, spills, dirt, and bacteria.

Choose the Casper Original if you:

  • Are a light- or average-weight sleeper.
  • Sleep on your side, back, or stomach.
  • Prefer medium-firm mattresses.
  • Are a restless sleeper.
  • Need orthopaedic support.
  • Easily feel hot at night.
  • Want good edge support.

Our recommended mattress protectors:

Casper vs Emma mattress composition

The Emma and Casper mattresses are very similar in terms of composition.

Emma mattress composition

The Emma mattress is a three-layered memory foam mattress. 3️⃣

These 3 foam layers are:

  • A top layer of pressure-relieving Airgocell foam.
  • A core of viscoelastic memory foam.
  • A base layer of HRX polyfoam.

The Emma Original has a total height of 25 cm (10 inches).


emma original foam layers
The Emma Original is a three-layered foam mattress.

Casper mattress composition

Similarly, the Casper is also a three-layered all-foam mattress.

These three layers of foam are:

  • A top layer of perforated & extra breathable AirSpace foam.
  • A 3-zoned memory foam core.
  • A durable support foam base layer with edge support for enhanced stability.

The Casper Original has a total height of 24 cm (9.4 inches). 📏

Casper mattress composition
Composition of the Casper mattress.

Casper v Emma price & size comparison

Since Casper mattress UK is no longer available, it's impossible to give an accurate size or price comparison.

Both of these mattresses, though, offer excellent value for money.

The Emma Original is available in all the standard UK mattress sizes. 🇬🇧

These include:

  • Emma single mattress: 90 x 190 cm (3’ x 6’3”)
  • Emma small double mattress: 120 x 190 cm (4' x 6'3")
  • Emma double mattress: 135 x 190 cm (4’6” x 6’3”)
  • Emma king-size mattress: 150 x 200 cm (5’ x 6’6”)
  • Emma super-king-size mattress: 180 x 200 cm (6’ x 6’6”)

We'd recommend that couples choose a double-size mattress or a larger one, like the king or super-king size. 👑


standard uk mattress sizes

People sleeping alone can choose any mattress size that fits their budget and bedroom size.

You can consult our mattress size guide for more help in choosing the best mattress size.

The right mattress accessories

You'll probably want some great sleep accessories to kit out your bedroom. 🛌

Both Emma and Casper offer fantastic sleep accessories.

Conveniently, Amazon UK still sells some Casper products, like mattress protectors, sheets, duvets, and weighted blankets.


Why not try a high-quality pillow?

How do the Casper and Emma delivery conditions & trial periods differ?

Delivery conditions on Casper mattress UK are no longer valid as the mattress is no longer commercially available in the UK.

But, the Emma mattress comes with the following delivery conditions:

  • Free delivery & returns
  • Bed-in-a-box convenience
  • 200-night trial period
  • 10-year guarantee

Both the Casper and the Emma mattresses are bed-in-a-box products. 📦

This means that they're delivered rolled-up and vacuum-packed in a cardboard box.


emma mattress box
The Emma is delivered rolled-up in a compact box.

Don't worry: The mattresses return back to their full size as soon as the vacuum wrapping is removed.

You may notice an odd chemical smell - called off-gassing - when you first unpack the mattresses.

This is completely normal.

Off-gassing is neither harmful nor toxic, and the smell disappears quite quickly. 🏠


Advantages and disadvantages of the two mattresses

To sum up everything we've gone over, here is a table overview of the advantages and disadvantages of both mattresses.

Advantages and disadvantages of the Emma Original

Advantages Disadvantages
  • Soft & comfortable to give you that "sleeping-on-a-cloud" feeling.

  • Offers excellent adaptability & high point elasticity for orthopaedic support.

  • Exceptionally low motion transfer, making it a brilliant choice for couples.

  • Good temperature regulation.

  • Very well-suited to side sleepers.

  • Machine-washable top cover.

  • Free shipping & free returns.

  • 200-day risk-free trial period.

  • 10-year guarantee.

  • 100% vegan.
  • May be too soft for heavier-weight people, larger builds, or back sleepers.

  • The side carrying handles are a little weak, especially for the larger mattress sizes.


Advantages and disadvantages of the Casper Original

Advantages Disadvantages
  • Unique design makes it comfortable for most body types and sleeping positions.

  • The upper layer of perforated foam offers enhanced breathability.

  • Memory foam gives the mattress unique body-hugging abilities.

  • This is a great choice for orthopaedic concerns.

  • Low motion isolation and comfortable for couples.

  • Original bed-in-a-box design.
  • Casper Sleep no longer operates commercially in the UK, making the mattress difficult to find.

  • It may be too soft for heavier-weight sleepers.

  • More expensive than comparable mattresses.

Read full review:

Which is better, the Casper or Emma mattress?

Both the Casper and the Emma mattresses are high-quality models. 🌟

We did think the Casper was slightly more comfortable for a greater variety of people, but the Emma is an excellent choice for side sleepers.

The Emma Original is best suited to:

  • People of lighter or medium build.
  • Side sleepers.
  • People who prefer soft mattresses.
  • People who require an orthopaedic mattress that will offer body-hugging comfort and relieve pressure points.


The Casper Original is best suited:

  • People of lighter or medium build.
  • All sleep profiles.
  • People who prefer medium-firm mattresses.
  • People who need orthopaedic support.
  • Restless sleepers or those who feel hot at night.

But since the Casper mattress is no longer available, here is a list of suitable alternatives.

Casper mattress alternatives:

Frequently asked questions

  • Can I still buy the Casper mattress?

    Unfortunately, many American brands are no longer available in the UK.

    These include both the Casper mattress and the Leesa mattress.

    You may still be able to buy old stock or second-hand products, but we'd recommend opting for one of the many high-quality UK mattresses that are still available straight from the manufacturer.

  • Do Casper and Emma mattresses come with a guarantee?

    Both Casper and Emma mattresses come with a 10-year guarantee.

    If you've purchased your Casper mattress before May 2020, your guarantee is still valid.

    Customers can contact Casper UK directly at to issue any warranty claims.

  • Is a hybrid mattress better for me?

    Both Casper and Emma have hybrid mattresses as well.

    Hybrids are generally better suited to:

    • People who don't like the feel of memory foam.
    • Hot sleepers or heavier sweaters.
    • Restless sleepers
    • People who need more support and stability.

    You can read our full Emma Hybrid review.

    Conveniently, the Casper Hybrid mattress is available in the UK via Mattress Online.




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