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Eve Original vs. Simba Hybrid

Eve vs. Simba Mattress Comparison - UK (2023)

Last updated: 31.10.2023 Reading time: 10 Min.

The Eve Original and the Simba Hybrid are two excellent mattresses.

Unbeatable value for money, free delivery, and risk-free trial periods - what's not to love?

Plus, they're both proudly British. 🇬🇧

But if you're torn between the Eve and the Simba, which new mattress should you choose?

We'll help you decide in this Eve vs Simba mattress comparison article.

Eve versus Simba

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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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Eve vs Simba mattress comparison

Eve and Simba are both proudly British bed-in-a-box mattress brands, and the Eve Original and Simba Hybrid are excellent high-quality mattresses.

That said, they do differ remarkably in terms of composition and comfort.

If you'd like to read more in-depth articles on the construction and features of these mattresses, we'd suggest turning to our mattress reviews:

Below, you'll find a side-by-side comparison of the two mattresses.

Eve Original Simba Hybrid
Type of mattress Foam mattress Hybrid pocket sprung foam mattress
Mattress height 24 cm (9.4 inches) 25 cm (10 inches)
Mattress layers

3 foam layers:

Open-cell Evecomfort® foam

New-generation memory foam

High-density base foam

4 layers:

Open-cell, graphite-infused Simbatex foam

Aerocoil mini conical pocket springs

Stability layer

SupportCore barrel spring base

Firmness Medium-firm Medium-firm
Stability & support An orthopaedic choice that offers good stability and support in all sleeping positions. Good support, stability, and pressure distribution, no matter your preferred sleeping position.
Suitable for

Light- and average-weight sleepers.

People who like a medium-firm mattress.

All sleeping positions.


Light- and average-weight sleepers.

People who sleep on their side or back.

People who like a medium-firm feel.

Heavy sweaters.

Restless sleepers.

Temperature Very good temperature regulation Excellent temperature regulation
Motion isolation Very low motion transfer Low motion transfer, though you may feel some movements
Mattress cover Hypoallergenic cover that's removable & machine-washable at 40°C with 4 side carrying handles. Hypoallergenic cover that's removable & machine-washable at 40°C. Larger sizes have 4 side carrying handles.

Both the Eve Original and the Simba Hybrid are described as medium-firm mattresses, but the exact feel of the mattresses is remarkably different.

We'll look at them both in more detail in the next section.

Eve vs Simba: Which mattress is best suited to you?

Even though the Eve Original and the Simba Hybrid mattresses are both excellent choices, they differ remarkably in terms of firmness level, the feeling of lying down, and comfort.

Both mattresses are described as medium-firm mattresses, but the Eve Original is still a little firmer than the Simba Hybrid.

The Eve is also an all-foam mattress, while the Simba is a hybrid mattress.

This has quite an effect on what sleeping on the mattress feels like.

Both, though, are excellent choices if you're looking for mattresses that are more environmentally friendly. 🌱

The Eve Original and the Simba Hybrid are free from harmful chemicals and toxins.

They're also both fire-retardant and adhere to UK fire regulation BS7177. 🔥

Eve Original: A good all-rounder

The Eve Original is a mattress with medium firmness.

We've placed it at 6.5 out of 10 on the Sleep Hero firmness scale, where 1 is the softest and 10 is the firmest.

As a medium-firm mattress, the Eve Original is well suited to most people and sleeping preferences.

Eve original firmness

The Eve Original is primarily a memory foam mattress, and it has unique orthopaedic qualities.

It has high point elasticity, adapts well to the body's contours, and provides good pressure relief. 🤗

These features allow your muscles to relax fully while you're sleeping, preventing lower back pain and a build-up of tension.

The Eve mattress also encourages spinal alignment by allowing the heavier parts of your body to sink in a little deeper and supporting the lighter parts of your body. 📏


Eve Original mattress side sleeper
The Eve Original is comfortable for most sleep profiles.

Choose the Eve Original if you:

  • Are of average build.
  • Sleep on your side, back, or stomach.
  • Prefer medium-firm to firm mattresses.
  • Are looking for good value for money.
  • Need a mattress that suits a wide variety of people and sleeping preferences.
  • Want a no-fuss mattress with a removable and machine-washable cover.


If you're looking for a firmer memory foam mattress, we can recommend the Nectar mattress.

You could also opt for a mattress topper if you want your mattress to be slightly softer.

Eve Original firmness

Eve Original sinkage

Simba Hybrid: superior support and breathability

The Simba Hybrid, like the Eve Original, is best described as a medium-firm mattress.

It is slightly softer than the Eve Original, though, and we've placed it at 6 out of 10 on the Sleep Hero firmness scale, where 1 is the softest and 10 is the firmest.

Simba mattress firmness level

The Simba Hybrid is great regardless of which sleeping position you prefer, but it's particularly comfortable if you sleep on your back.

This is because the mattress offers excellent support, evenly distributing pressure throughout and allowing for optimal spinal alignment.

It is still soft enough, though, to be suitable for side sleepers.

Side sleepers generally require a little more sinkage (especially in their pelvic and shoulder areas) to allow their spines to remain straight.

The contour zones in the base layer help in achieving this.


Other notable features include Simba's edge support, so you won't feel like you're falling off the sides, and how easy it is to turn around on the mattress.

This makes the Simba Hybrid great for restless sleepers.

Simba mattress side sleeper
The Simba mattress encourages spinal alignment.

The Simba Hybrid also has a unique design that combines pocket springs with graphite-containing Simbatex foam layers to enhance airflow and overall breathability.

Even though the Eve Original uses new-generation memory foam, which is much more breathable than traditional memory foam, it still cannot compare to the hybrid nature of the Simba mattress.

All of these features allow a constant flow of air to move through the mattress, transporting body heat away and keeping your mattress temperature neutral. ❄️

This makes the Simba mattress a great choice for heavier sweaters or those who easily feel hot at night.

Simba mattress air regulation channels

Simba mattress foams

Choose the Simba Hybrid if you:

  • Are of slight or average build.
  • Are a restless sleeper.
  • Prefer to sleep a little cooler.
  • Like to sleep on your side or back.

Very heavy sweaters or large builds (above 130 kg / 264 lbs) may need to try the mattress to see if it can support them well enough.

If not, a pure pocket sprung mattress would be the best option.


Sitting on Simba mattress

Standing on Simba mattress

Eve vs Simba mattress composition

The Eve mattress and the Simba mattress are very different in terms of composition.

Most notably, the Eve is an all-foam mattress, while the Simba is a hybrid mattress.

Eve mattress composition

The Eve Original mattress is made up of three different high-quality foam layers.

The three different layers of foam are:

  • A top layer of open-celled Evecomfort® foam (2.5 cm / 0.9 inches)
  • A viscoelastic memory foam layer (3 cm / 1.1 inches)
  • A base layer with seven contour zones (18 cm / 17 inches)

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


Eve mattress composition

Simba mattress composition

The Simba Hybrid is a four-layer hybrid mattress that combines a variety of different materials.

These 4 layers are:

  • Open-cell, graphite-infused Simbatex foam
  • Up to 2500 Aerocoil conical pocket springs
  • CertiPur stability layer
  • No roll-off SupportCore base with up to 1000 barrel springs

The Simba mattress has a total height of 25 cm (10 inches), which is on par with most bed-in-a-box mattresses.


Simba mattress composition
Pocket springs are surrounded by foam in the Simba mattress.

Eve vs Simba mattress price & size comparison

The Eve Original is considerably cheaper than the Simba Hybrid mattress.

This is primarily because the Simba has pocket springs, while the Eve is a pure foam mattress.

Both Eve and Simba mattresses are available in the standard UK mattress sizes, but the Simba mattress is also available in a few European bed sizes. 🇪🇺

UK Mattress Sizes

Both mattress brands offer regular discounts and vouchers and it is very possible to save 35% or more when you purchase your mattress. 💵

We collect discount codes regularly - and even have exclusive deals with some mattress brands.

We display these on our discounts page. 🥳

How do the Eve and Simba delivery conditions & trial periods differ?

Both the Eve Original and the Simba Hybrid are bed-in-a-box mattresses manufactured in the UK, with free delivery, free returns, and a risk-free trial period.

Their delivery conditions are remarkably similar. 🚛

Here is an overview:

Eve Original Simba Hybrid
Delivery Bed-in-a-box principle Bed-in-a-box principle
Delivery time 1 - 3 working days 1 - 3 working days
Delivery cost Free delivery within mainland UK Free delivery within mainland UK
Trial period 1-year trial 200-day trial period
Returns Free returns Free returns
Warranty 10-year guarantee 10-year guarantee

Both brands offer free delivery

The Eve Original and the Simba Hybrid are both delivered rolled-up and vacuum-sealed in a compact box. 📦

Delivery is free of charge within mainland UK.

Once unpacked, the mattresses will slowly inflate to their original sizes (generally within 6 hours). ⏰


Eve Original delivery

Eve Original in box

Risk-free trial periods

Both mattresses also come with a risk-free trial period, which gives you the chance to try the mattress in your own home and allow your body to get used to the new bed.

While the Eve used to come with a 100-day trial, it now offers a 1-year trial period.

The Simba has a 200-night trial. 🗓

Elongated trial periods give you just a little more time before having to make a final decision.

If you decide that the mattress isn't right for you at any point during the trial period, you can return it and receive a full refund.


Both mattress brands organise their respective returns and refunds.

10-year guarantee

Both the Eve Original and the Simba Hybrid come with a 10-year guarantee.

Simba mattress in a box
The Simba is a bed-in-a-box mattress.

Advantages & 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 Eve mattress

Advantages Disadvantages
  • High-quality, high-density foams.

  • Comfortable with a medium-firm feel.

  • Particularly suitable for average-weight sleepers.

  • Suitable for all sleeping positions.

  • Good temperature regulation.

  • 1-year risk-free trial period.

  • Free delivery & returns.

  • 10-year guarantee.
  • May be too soft for larger builds or those looking for a very firm mattress.

  • Off-gassing is common.


Advantages and disadvantages of the Simba mattress

Advantages Disadvantages
  • Innovative structure with a slightly springy feel.

  • Very comfortable for side sleepers and back sleepers.

  • Adapts well to the body.

  • Very good breathability.

  • Machine-washable cover.

  • Free delivery & returns.

  • Available in a wide range of sizes.
  • Quite expensive.

  • Only a 200-day trial period.


Read our full reviews:

Our favourite Eve & Simba sleep accessories

Simba Sleep offers some amazing mattress and sleep accessories. 🛏

The selection includes:

  • Pillows
  • Duvets & weighted blankets
  • Mattress protectors
  • Mattress toppers
  • Bedding & linen
  • Bed frames
  • Bedroom furniture

We've included a selection of some of our favourites below.

Eve used to offer more sleep accessories, but currently the company focuses almost exclusively on mattresses.

Our favourite Simba accessories:

What about other Eve and Simba mattresses?

The Eve Original and the Simba Hybrid are the respective brand's flagship products.

But, both Eve Sleep and Simba Sleep have a range of other mattresses.

Eve mattress range

Eve Sleep features a wide range of different mattresses, which can be a little confusing for customers. 🤯

Their mattresses are divided into the Lighter, Original, and Premium ranges as both foam-only and hybrid versions, which feature pocket springs in addition to foam.

Simba mattress range

In addition to the Simba Hybrid, Simba Sleep also has a few more mattresses, including the Simbatex Foam, Simba Essential, Simba Hybrid Pro, and the Simba Hybrid Luxe.

Of these, only the Pro and the Luxe are thicker, more luxurious mattresses.

How do other Eve mattresses and Simba mattresses compare?

All of the signature Simba mattresses (except for the Simbatex) are hybrid mattresses featuring multiple layers of foam and mini pocket springs.

These will be vastly different from the all-foam Eve Lighter mattress, Eve Original mattress (as discussed in this article), and the Eve Premium mattress.

Hybrid mattresses give an entirely different feel. 🌀

They are better suited to heavier-weight people and front/back sleepers, are easier to move around on and better for restless sleepers, and offer much greater breathability, making them much cooler than all-foam mattresses.

The Simba mattresses, then, can best be compared to the Eve hybrid range.

Eve Lighter Hybrid vs Simba mattresses

The Eve Lighter Hybrid is a low-height mattress, coming in at only 20 cm (7.8 inches).

There is a comparable Simba mattress - the Simba Essential. 🧒

Eve Original Hybrid vs Simba mattresses

The Eve Original Hybrid and Simba Hybrid are the most comparable.

Both feature multiple layers of foam and springs, though the Eve Original Hybrid features full-size pocket springs and the Simba Hybrid features mini pocket springs.

Mini pocket springs usually adapt to your body slightly better than full-size springs. 🤗

They also allow the mattress to contain more springs, which can help make it more responsive and feel more comfortable.

Simba Hybrid Pro
The Simba Hybrid Pro has a wool top layer.

Eve Premium Hybrid vs Simba mattresses

The Eve Premium Hybrid is one of our favourite mattresses - 28 cm (11 inches) of luxurious foam and full-size pocket springs in a foam casing.

The Simba Hybrid Pro and Simba Hybrid Luxe are equally luxurious. 🏆

  • The Simba Hybrid Pro also comes in at 28 cm (11 inches).
  • The Simba Hybrid Luxe has a depth of 31 cm (12.2 inches).

As before, the Simba mattresses feature mini pocket springs, while the Eve Premium Hybrid has full-size pocket springs.

The Simba mattresses also have additional wool (in the Hybrid Pro) and bamboo wool (in the Hybrid Luxe) layers for superior temperature regulation.

Which mattress is better, the Eve Original or the Simba Hybrid?

Both the Eve Original and the Simba Hybrid mattresses are of high quality and offer a high degree of comfort, guaranteeing a good night's sleep.

You won't go wrong with either one.

But, one of them may still be better suited to you.

The Eve Original is a good all-rounder, but the Simba Hybrid is better for restless sleepers and those who prefer a cooler sleep.

The Eve Original is best suited to:

  • Back sleepers, stomach sleepers, and side sleepers.
  • People of average build.
  • People who prefer medium-firm mattresses.
  • People looking for a great value-for-money option.


The Simba Hybrid is best suited to:

  • Light- and average-weight sleepers.
  • People who sleep on their side or back.
  • People who like a medium-firm feel.
  • Heavy sweaters.
  • Restless sleepers.


But don't forget that both mattresses come with a risk-free trial period.

Don't like the mattress? Simply return it and receive a full refund.

After all, testing a mattress is the only sure-fire way of finding out if it's perfect for you.

Frequently asked questions

  • What bed frames can I use with the Simba Hybrid and Eve Original mattresses?

    Technically, you could place both mattresses onto any bed frame, be it a divan base or box spring, provided it has a smooth, flat surface for your mattress to rest on.

    You should avoid slatted frames if you're opting for a memory foam mattress, like the Eve Original.

    This is because slatted frames have gaps between the actual slats, and memory foam tends to conform to that shape.

    This can result in bumps and grooves, which damage your mattress in the long term.

  • Can I buy the Eve Original or the Simba Hybrid through Amazon or other stockists?

    Yes, both mattresses are available on Amazon in the UK and select mattresses are also available via other retailers, like John Lewis.

    We would always recommend buying directly from the manufacturer, though, as this guarantees you the best service, warranty conditions, and trial periods.



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My mum calls me "bear" because I like to sleep so much. I never thought that, one day, I'd be a certified sleep coach and apply my skills more widely. Can you tell that I've found my calling? 

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