Eve vs Simba Reviews

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Human Window Staff
By Human Window Staff
Updated on August 20, 2019

Today we’re going to be comparing the Eve and Simba mattresses – two of the most popular options in the UK’s ‘bed in a box’ scene.

Both Eve and Simba have established themselves as major players in the memory foam mattress market, but the products do differ slightly and that means that there are certain features that may or may not suit you.

This page is going to bring you a detailed breakdown of both mattresses so that you can decide which one of these products is best for you.

Before we get going, be sure to check out our updated guide to the best memory foam mattresses currently on sale right now.

In this article, we’re going to be taking a close look at both the Eve and the Simba to see the differences, similarities, pros and cons to help you make an informed decision.

We’re going to split this page up into the following sections:

• Eve – The Basics
• Simba – The Basics
• What Is The Mattress Made Of?
• What Does the Mattress Feel Like?
• Eve vs Simba – Our Recommendation
• Anything Else To Consider?
• Wrapping Things Up – Final Thoughts

So, now that we’ve got the introductions out of the way, let’s start taking a closer look at the basic points you need to know about both the Eve and the Simba.

Eve – The Basics

Product website: www.evesleep.co.uk

The Eve Mattress arrives vacuum-packed in a box

The Eve Mattress arrives vacuum-packed in a box (Photo: Eve Sleep)

The Eve mattress is one of the leading memory foam mattress products on sale in the UK and Europe.

It’s been around since February 2015 and has established itself as one of the major players in this space right now.

Eve have since expanded their product line to offer other mattress options as well as a range of pillows and bedding, but the Eve Original mattress remains as one of their best selling products.

The Original Eve Mattress starts at £349 for a UK single, with an Emperor size costing as much as £849 if you’re buying from the official website.

The Eve is around 9.4 inches thick, with the industry standard usually being around 10 inches.

The Eve has been designed for all sleeping positions and it comes with one of the slickest marketing campaigns we’ve found.

It combines different layers of foam and memory foam to offer comfort and support during the night.

Eve Mattress Review

Simba – The Basics

Product website: www.simbasleep.com

The Simba Mattress comes packaged in a box to your door (Photo: Simba Sleep)

The Simba Mattress comes packaged in a box to your door (Photo: Simba Sleep)

The Simba is what’s known as a ‘hybrid’ mattress, because it combines layers of foam with one layer of springs.

Launched at a similar time to Eve, the Simba has also been around for a good few years now and it has quickly become one of the best selling mattress brands in Europe.

The Simba is around 10 inches thick, which is the standard for mattresses in this category.

The Simba marketing message is focused on the premise that the mattress offers the “best of both worlds” when it comes to both foam and springs.

The Simba costs £449 for a single and £949 for an Emperor size, so both of these mattresses are in a similar price range.

Simba Mattress Review

What Is The Mattress Made Of?

Now that we’ve covered the basic things you need to know about Eve and Simba, it’s time to take a closer look at what they are actually made of.


The Eve has three different layers of foam beneath its cover, each of which has been specifically placed for a certain function.

The top layer is memory foam to offer some instant pressure relief and body contouring, and below that you’ll find a transition layer of poly foam above a thicker layer of zoned high density support foam.

The Eve Mattress uses three different layers of foam to support a restful night's sleep

The Eve Mattress uses three different layers of foam to support a restful night’s sleep (Photo: Eve Sleep)

Here are the three main layers of the Eve Mattress:

1) 4cm of Memory Foam – To help keep your spine aligned
2) 3.5cm of Polyurethane – To take the pressure off and provide a ‘snug’ fit
3) 16.5cm of Zoned High Density Support Foam – To provide strong support throughout the night


The Simba uses four different layers to help support a restful night’s sleep.

Below the support layer of foam, you’ll find the special foam layer with added springs to help cradle your body.

Underneath that, there is 3cm of memory foam, which acts as a transition layer to the 15cm of zoned support form below.

The Simba Mattress is made from four different layers (Photo: Simba Sleep)

The Simba Mattress is made from four different layers (Photo: Simba Sleep)

Here is a breakdown of the various layers of the Simba Mattress:

1) 5cm of Latex Foam – A cooling comfort layer to help keep you fresh.
2) 2cm Support Foam with Springs – Microcoils encased in foam to cradle your body.
3) 3cm of Memory Foam – Responsive transition layer to shape to your body.
4) 15cm of Zoned Support Foam – Durable support to offer pressure relief through the night.

RELATED: The Five Best Memory Foam Mattresses

What Does the Mattress Feel Like?

Now that we know the basics about both mattresses and what they are made of, it’s time to focus on the all-important feel of both the Eve and the Simba.


Like the Simba and most of the products in this category, the Eve is publicly rated as a ‘medium-firm’ mattress.

Importantly, the manufacturers insist that the mattress will feel comfortable no matter whether you sleep on your side, front or back.

The Eve has a slightly firmer feel than some of the other products out there in this category.

This means that it may be better suited to side or front sleepers, who tend to favor a firmer product.

The Eve also has next to no motion transfer, meaning that you shouldn’t be disturbed by your partner moving around during the night.


The Simba is also rated as a ‘medium-firm’ mattress.

It has a marginally softer feel than the Eve – but it’s worth remembering that everyone’s depiction of firmness differs slightly.

The top layers of the Simba help you to sink in but so too much that you feel ‘stuck in the bed’.

Because we found the Simba to have a slightly softer feel than a lot of similar products, we think this product would be better suited to side sleepers than the Eve.

The Simba should be slightly cooler at night than the Eve, as the spring layer allows for more airflow through the mattress.

Eve vs Simba – Our Recommendation

So, how does the Eve compare to the Simba?

All in all, we like both of these products. They are well-established in the market and have a good track history with customers.

The Eve is the slightly firmer mattress, so we think it would be better suited to back and front sleepers.

The Simba is a bit softer, meaning that it may be better suited for side sleepers. The Simba also has the added bonus of a layer of springs, which can improve airflow and bring some nice cooling during the night.

All in all, we cannot separate this products and recommend them both.

Anything Else To Consider?

Just bear in mind that the only real way to be sure if a mattress is right for you or not is to actually sleep on it for a few nights.

Luckily both the Eve and the Simba come with 100 night home trials if you’re buying from the official website, so that means that you can return both for a full refund if you’re not happy with it during that time.

Wrapping Things Up – Final Thoughts

That brings us to the end of our Eve vs Simba comparison.

To wrap things up, both of these mattresses have similar price points and construction.

The Eve is a foam-only mattress, while the Simba is a ‘hybrid’ option that uses a layer of springs.

The Eve is slightly firmer in our opinion, but the Simba has the added bonus of extra cooling thanks to the layer of springs.

For that reason, the Eve may be better suited to stomach and back sleepers, and the Simba could be better for side sleepers.

All in all, you’re not going to go too far wrong by selecting either of these mattresses.

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