Header burger open
Search Logo

Jump To

Currently Viewing:

Emma vs Simba: Our Mattress Comparison with Pros & Cons

a headshot of our reviewer Connie

Written By Connie

CPD Sleep Consultant

an icon representing a methodology of testing for products

How We Test

Our testing process

a featured image of emma vs simba comparison

29 April 2024 15 min read

Emma Hybrid mattress or Simba Hybrid mattress – which one's better? Both are undeniably great, but if you want to know which one's more suited for your needs – we just might have an answer for you. Take a look at Emma vs Simba comparison.

Emma vs Simba comparison is finally here since these are highly popular brands! Both are household names in the industry, with several fantastic mattresses in their catalogue, but two of them seem to stand out from the crowd the most – Emma Hybrid and Simba Hybrid.

Emma Hybrid is an award-winning mattress, and it has been one of the UK's favourite mattresses for a few years at this point. Hybrid mattresses often tend to be the most popular ones, but this one really seems to stand out from the crowd, for a plethora of good reasons which we'll discuss in just a second.

Simba Hybrid is another hybrid mattress, and it is the entry-level hybrid from Simba Sleep's Hybrid series. It is also one of the UK's most popular mattresses, and it is widely considered to be one of the best mid-range hybrids that are available.

With such high praise, it would be easy to recommend both of these, but as we all know, not everyone will find them both perfect. On that note, we've decided to compare these two, head-to-head, and see which one comes out on top.

So, without further ado, let's begin our comparison – Simba vs Emma.

Emma Hybrid VS Simba Hybrid comparison table


Emma Hybrid 

Simba Hybrid





25 cm

25 cm

Number of layers









Good for 

Back and side sleepers

All sleeping positions

Temperature regulation



Motion isolation 




99% polyester, 1% elastane

100% polyester

Overall Comfort

Comfort is arguably the hardest characteristic to quantify and compare because not everyone will find the same thing comfortable. However, some of these high-quality mattresses are just objectively comfortable, which is the case for these two.

Emma Hybrid is a crowd favourite because most sleepers prefer the soft comfort of memory foam alongside support from micro coils. Seeing how Emma Hybrid is tailored towards side and back sleepers, we can safely say that they're the ones finding Emma Hybrid slightly more comfortable. Also, once you factor in the 3-zoned base and the tailored support that the Hybrid offers, it's hard to make a case against this mattress.

an image of a couple enjoying the comfort of Emma Hybrid mattress

Simba Hybrid, on the other hand, is a bit softer, but still a comfortable mattress. It's not a lot softer, since Simba Hybrid is also 90% memory foam. Even though it is softer, you still get a bit more support and firmness around the hips. That makes it a bit more of an all-around player, as stomach sleepers can also enjoy this one. Once again, the entire mattress is supported by a multi-zone base layer, so side and back sleepers will also find comfort in this one.

an image of simba hybrid mattress

We're inclined to call this a tie since both of these are remarkably comfortable. However, since Simba Hybrid is a bit more well-rounded, we'll give it a slight edge.

Nine and a half out of ten for Simba, and a solid nine for Emma Hybrid.


People are often led to believe that memory foam is all about comfort and softness, and they often overlook the support side of things. However, we're not most people.

Emma Hybrid, due to its HRX memory foam base, is one of the most supportive memory foam/pocket spring mattresses on the UK market. We've already mentioned three-zone support, so you already know that it offers quite a lot of comfort around the pressure points and core areas, but what we didn't mention is that HRX foam is high-density foam or up to 2,000 steel micro coils, so you can expect a great deal of support out of this Emma mattress.

an image of emma hybrid mattress' layers

Simba Hybrid mattress also comes with a zoned support layer, so it would be safe to assume that it is on par with Emma Hybrid. Simba Hybrid mattress also comes with up to 2,500 2.5 cm tall titanium pocket springs. Those super-durable and super-responsive springs and zoned base give it a slight edge over Emma, especially around the hips, making Simba a preferred option for stomach sleepers.

an image of simba hybrid mattress' layers

Also, Emma struggles a bit with support around the edges, which is surprising given how similar it is to the award-winning Emma Original mattress.

Overall, an eight out of ten for Emma, but a strong nine for the Hybrid Simba mattress.

Temperature regulation

Emma mattresses aren't really known for being the most breathable, but what could you expect from an almost all-foam mattress? However, compared to some other similar mattresses, Emma Hybrid is actually quite breathable. This is due to its layer of Airgocell foam. This open-pored layer is designed to wick away heat and moisture and dissipate it out in the air, instead of sending it back to you. Naturally, there's only so much you can expect from memory foam, so if the summers get really toasty – you might want to consider adding a cooling topper.

an image of an internal structure of Emma Hybrid mattress

Simba Hybrid mattress is also mostly made out of foam, but thanks to their open-cell foam called Simbatex and the 25 mm tall springs – it does a pretty decent job regulating temperature. The Simbatex layer is not just open-cell, but it's also infused with graphite, which helps tremendously. The graphite-infused layer absorbs all the extra heat, and then just lets it out underneath where the micro coils are.

Once again, Simba Hybrid mattress takes the win. However, only by a tight margin.

Seven and a half for Simba, and a seven for Emma.

Overall stability

Stability is another factor that's often overlooked when we discuss mattresses – but not today. To assess overall stability, we'll look at responsiveness, motion isolation, and edge support.

Emma Hybrid mattress excels at two out of three. Seeing how it is a hybrid mattress, Emma Hybrid is as responsive as it gets. It offers just enough bounce so that you don't ever feel like you're “trapped” when lying down. As for motion isolation – we truly think it doesn't get much better than this. You could place a glass of water onto one side of the bed, throw a dumbbell at the other and not spill a drop. It's that good. However, edge support is lacking with Emma Hybrid. It's not that it's not good, but it could certainly be better.

Emma hybrid mattress coils

Simba Hybrid, however, does all of these things perfectly – or at least as close to perfect as you could get. You will get a bit more bounce than with Emma, thanks to the titanium Aerocoils, but what's interesting about it is that additional bounce won't come at the expense of motion transfer isolation with this Simba mattress. And, thanks to the edge-to-edge layer, support around the edges is flawless.

An image of simba hybrid mattress' body alignment illustration.

Overall, we'd say that Emma Hybrid is a tiny bit better at isolating motion than Simba, but considering its average-ish edge support, we have to give another round to Simba.

A perfect ten for Simba, and an eight and a half for Emma.


As for the structure, these mattresses are very similar. However, they're made by different mattress brands, so there are bound to be some differences between the two.

Emma Hybrid starts with a cold foam base called HRX foam. It is a three-zone base, specially designed to provide support, enhance spinal alignment, and improve weight distribution and pressure relief. It is a similar base to the one used in their renowned memory foam mattress – Emma Original.

On top of the cold foam base, we can find a layer of pressure-relieving visco-elastic memory foam. As you can probably tell by the name, this layer is designed to provide pressure relief and reduce motion transfer.

Next up, we have up to 2,000 steel micro coils. These coils help improve several things – comfort, contouring, pressure relief, air flow, and overall stability.

Finally, on top, we have a comfort/breathability layer called Airgocell memory foam. Airgocell technology is one of Emma's most proud innovations. It's contouring, pressure-relieving, temperature-regulating and motion-isolating – all at once.

an image of emma hybrid mattress construction

Simba mattress also sports a support foam base, but unlike Emma's – this one has five unique zones. This one's a bit firmer under the hips, making it suitable for all sleeping positions, which is common for Simba mattresses.

On top of the base, we can find an edge-to-edge support memory foam layer, ensuring that the springs are evenly supported all throughout the mattress, but also making sure that the edge support is not lacking.

25 mm tall titanium Aerocoil springs lay on top of the edge-to-edge support layer, and on top of the springs, we can find the fourth, and final layer of Simba Hybrid, the Simbatex, open-cell graphite-infused temperature-regulating layer.

an image of simba hybrid mattress construction illustration


Both of these are available in all the standard sizes, but as you're about to see, we do have a clear winner here.

Both Emma Hybrid and Simba Hybrid are available in all the UK standard sizes:

However, Simba takes sizing options quite a bit further, offering the following:

As for the depth of these two, both of them are 25 cm tall, which is widely considered to be the perfect mattress depth. So, whether you get a Single or a Super king – mattress depth will stay the same.

The only exception is the Kids size of Simba Hybrid mattress, which is 16 cm deep.

Delivery & trial

Even though these two mattresses come from different companies – delivery, trial, and warranty conditions are identical across the board.

When you order your new vacuum-packed mattress, whether it's an Emma mattress or a Simba mattress, you can expect to receive it in one to three business days. Naturally, this only applies to the UK mainland.

What also applies to the UK mainland is the free delivery. Both mattresses are void of all delivery and shipping charges.

The trial period for both these mattresses is also the same – 200 nights. You will get to spend over six months with each of these, and if you happen not to like them, you can return them for a full refund, completely free of charge.

Finally, you will get a 10-year warranty for both of these.

What are the 7 key differences between Emma Hybrid & Simba Hybrid?

Now that we're done with Emma Hybrid and Simba Hybrid mattress comparison, we're going to highlight some of the key differences between these two. Understanding these differences will help you easily identify which one of these is a better option for you.

1. Simba is softer while Emma offers more firmness

One of the hardest differences to spot between these two has to be firmness.

There's about a 5 to 10% difference in firmness between these two, with Emma Hybrid being the firmer of the bunch. This small difference in firmness between these two is actually quite unique. Even though Emma's a bit firmer, Simba is actually the one that's better suited for all sleeping positions thanks to differently tailored, zoned support.

an image of simba springs technology

Thanks to that little bit of extra overall firmness, Emma Hybrid is rated higher in terms of how much weight it can support. Emma can withstand up to 130 kg per person, while Simba is rated at 114 kg, so heavyweight sleepers will prefer the Emma more.

2. Emma is aimed at side and back sleepers, while Simba offers more comfort to front sleepers

Most people would probably guess wrong about which mattress to choose if they were only looking at firmness. However, that only goes to show that firmness is not the main determining factor when choosing a mattress.

Generally speaking, Emma Hybrid is a perfect mattress for side and back sleepers. It's a medium-firm hybrid mattress, and as such, it is just what side and back sleepers need. It will provide comfort, pressure relief, and enough room for your hips and shoulders to sink right into the mattress, keeping your spine perfectly aligned all throughout the night. If you want a more all-around mattress from Emma, you'd go with something like Emma Premium mattress.

Simba Hybrid, on the other hand, is something stomach sleepers could enjoy, too. Just to be clear, Emma Hybrid is not uncomfortable for stomach sleepers – it's just that Simba's better. Due to a bit of extra firmness around the core areas, Simba Hybrid offers solid support underneath the hips, allowing the stomach sleepers to get a good night's sleep.

However, both of these are “soft” mattresses for heavyweight sleepers that prefer sleeping on their stomachs, so keep that in mind. 

3. Simba offers better cooling abilities than Emma

As we have already discussed, another difference between the two is temperature regulation. The difference isn't too obvious like it would be if we were to compare either of these to all-foam mattresses, but it's still there.

Even though both of these have several memory foam layers, including a high-definition foam base, only one of these has a graphite-infused foam layer that makes a significant difference in cooling and breathability.

an illustration of Simba hybrid mattress cooling abilities.

Simba is known for its remarkable passive and active cooling technologies, and even though we don't see Simba Stratos active cooling technology with this one, Simbatex does more than a good job keeping things cool and breezy.

Now, if we're being completely honest, both of these will be more than suitable for UK summers. Since the temperature in the UK rarely eclipses 30 degrees Celsius, neither of these two should cause you any trouble sleeping.

With that being said, Simba Hybrid does do a slightly better job at keeping things cool, which is something to keep in mind if you live somewhere a bit sunnier. 

4. Emma has a three-zone foam base, while Simba has a five-zoned base

Either one of these is a good quality mattress, so what does this minor difference in base mean for an average customer? Well, quite a lot actually.

A zoned base can make a world of difference for a mattress, which is why you often see memory foam mattresses experiment with their base support layers. In this case, we have two high-definition, high-density foam bases.

Structurally, they're probably quite similar, however, they're zoned differently. As we have already mentioned, the difference between these two lies in the level of support around the hips, but does this difference affect anything else?

an image of simba hybrid mattress 5 layer construction

Well, an all-foam mattress base absorbs energy, movement energy, ensuring that there is not a lot of motion transfer. What it also does is offer better contouring and pressure relief. And, since both of these are fairly strong in both these categories, one would assume that zoning didn't make any difference in those areas – but it actually does.

For instance, while you would get more support around the hips with Simba, you would actually get more pressure and pain relief from Emma, as the zoning cut-outs are done differently.

5. Simba mattress works well with all bed bases, while Emma struggles a bit with a slatted base

We have already talked about the structure of these two, and even though they are fairly similar, Emma Hybrid turns kind of soft when used on a slatted base, which is not the case with Simba's hybrid.

Obviously, every mattress, whether it's a new mattress or an old one will feel slightly different when placed on a slatted base, but with Emma Hybrid, the difference is too great.

It's not heaven and earth, obviously, but out of all the mattresses that we've ever tested and reviewed, the difference with Emma Hybrid seems to be the most obvious one.


The most noticeable difference when you place this one on a slatted base is that it becomes 10-15% softer. At that point, front sleeping becomes kind of uncomfortable for most men. Children, teenagers, and most women could probably get by, but if you're over 65-70 kilos, expect your hips to sink quite a bit deeper than usual, resulting in some lower back pain.

Usually, Emma Hybrid is brilliant at alleviating lower back pain, so you can see how this could be an issue for some.

6. Emma mattress comes with a removable cover, while the Simba does not

Another difference between the two lies in the covers.

Emma Hybrid comes with a removable, machine-washable cover, which is to be expected from a top-selling, high-quality medium-range mattress. Simba Hybrid, on the other hand, does not.

Simba Hybrid's sleep surface is a 100% polyester, non-removable cover, only washable with a damp cloth and a vacuum.

For many, that is a major disadvantage, as many prefer to keep their mattresses clean and allergen-free.

Thankfully, both of these covers are hypoallergenic, but still, that doesn't mean that we wouldn't have loved to just strip our Simba Hybrid mattress and toss the cover in a washing machine at 40 degrees, which is exactly what you can do with Emma Hybrid's cover. 

7. Simba offers slightly more durability than Emma

The final difference between the two might not be evident for quite a long time, seeing how both of these are excellent mattresses.

As we have mentioned earlier, both of these are covered by a 10-year warranty, and that's just about how long these will last with proper care and maintenance. However, Simba Sleep has built a reputation for manufacturing unbelievably durable mattresses, and that's also the case with their Hybrid.

an image of family enjoys the high level of emma hybrid mattress' durability

Now, we can't really speak in exact numbers, because the longevity and durability of the mattress depend on a lot of factors, but if you could somehow put these two, side by side, and use them in the exact same manner for years to come, we'd expect Simba Hybrid to outlast Emma Hybrid. 

Advantages & disadvantages of Emma Hybrid


Now, let's take a look at a brief overview of all the advantages and disadvantages of the Emma Hybrid mattress.


An icon depicting a firm & supportive surface indicating support & firmness
Very comfortable and supportive
An icon presenting perpetual motion balls indicating low motion transfer
Excellent motion isolation
An icon depicting chain links indicating durability
Longevity and durability.


An icon depicting negative warming properties
Some overheating issues
An icon depicting a non-firm & supportive surface
Loses some firmness and support on a slatted base.

Advantages & disadvantages of Simba Hybrid

an image of simba hybrid mattress covered with a blanket

Now, let's take a look at a brief overview of all the advantages and disadvantages of Simba Hybrid mattress.


Well-rounded mattress
An icon presenting perpetual motion balls indicating low motion transfer
Excellent motion isolation and responsiveness
An icon depicting chain links indicating durability
Excellent durability and longevity.


An icon depicting the product may be too soft
Too soft for heavyweight sleepers
An icon representing a non-removable cover
Non-removable cover
An icon depicting negative warming properties
Minor overheating issues.

Emma Hybrid is best suited for…

If your preferred sleeping position is side or back – Emma Hybrid is for you. But, that's not all that matters.

Emma Hybrid is also quite a pick for people struggling with back or joint pain. With this level of pain and pressure relief, it's hard not to recommend this one to an aching sleeper.

On that note, Emma Hybrid is best suited for…

Simba Hybrid is best suited for…

Simba Hybrid is a slightly firmer mattress compared to Emma Hybrid and as such, it is a better option for stomach sleepers. Of course, the Hybrid is a well-rounded mattress, so unless you're quite heavy, your sleeping preference doesn't really matter with this one – it'll be good either way.

On that note, Simba Hybrid is best suited for…

Spread the word

FAQs about Emma Hybrid vs Simba Hybrid

Now that we're done comparing these two – let's answer some FAQs.

Which is firmer: Emma Hybrid or Simba Hybrid?

Emma Hybrid is a slightly firmer medium-firm mattress out of the two.

Which is more durable: Emma Hybrid or Simba Hybrid?

While both are very durable and long-lasting, Simba Hybrid is a bit more durable.

Do Emma Hybrid and Simba Hybrid come with removable covers?

No. Only the Emma Hybrid comes with a removable, machine-washable, moisture-wicking cover.

How do I wash properly Emma Hybrid and Simba Hybrid?

Simba Hybrid can be vacuumed, and spot cleaned, while you can remove the cover from Emma Hybrid and wash it in a washing machine at 40°C.

Do Emma Hybrid and Simba Hybrid come rolled to my doorstep?

Both of these are bed-in-a-box mattresses. Therefore, yes, both of them will arrive vacuum sealed and rolled up.

Are Emma Hybrid and Simba Hybrid suitable for side sleepers?

Yes. Either one of these is a great mattress for side sleepers.

Should front and back sleepers go for Emma Hybrid or Simba Hybrid mattresses?

Back sleepers could choose either one of these, while the front sleepers are somewhat better off choosing the Simba Hybrid.

About the author

As a CPD certified Sleep Consultant I know how important sleep is. And as a combination sleeper, I have found it difficult to get products to suit my sleep style. I have more than 2 years product testing experience with The Sleep Advisors which means I have slept on, with and under more than 500 products with varying degrees of success. This is added to more than 2 years experience as a product reviewer for Closer, Heat and Grazia magazines, so I've got a rigorous process. I love sharing my sleep testimonials with our readers and hearing their experiences too.
Related Posts

Top Mattress Reviews

11 June 2024

Silentnight Miracoil Ortho Mattress Review

Who can benefit from this Silentnight Eco Comfort mattress? Well, anyone, if we’re being completely honest.  Silentnight Miracoil is ...
dormeo octasmart hybrid mattress
08 April 2024

Dormeo Octasmart Hybrid Mattress Review

As we would do with any other hybrid mattress, we'd use Dormeo Octasmart Hybrid mattress to sleep on it. However, thanks to the advanced tec...
Don't Miss Out!
Get the latest reviews, special offers, new releases and more…
'The Luxe Cooling Mattress' by @emmasleepuk  is award-winning!

Tried and Tested by The Sleep Advisors, we've awarded them the 'Best Mattress for Side Sleepers'🏆

Click the link in the bio for more 📖🥸

#thesleepadvisorsuk #awardwinningmattress #emmasleepuk  #mattressreviews
'Award Winning Softness' by @hypniauk 

Tried and Tested by The Sleep Advisors, we've awarded them the 'Best Soft Mattress'🏆

Click the link in bio to read the full review 📖🥸

#thesleepadvisorsuk #awardwinningmattress #hypnia #mattressreviews

The Sleep Advisors cover all the benefits of Panda Products 🐼🐼

Click the link in the bio for more🔗

#ɪɴsᴛᴀʀᴇᴇʟs #instareelsdaily #PandaMattress #thesleepadvisorsuk
The awards continue! @silentnightbeds 'Just Breathe Eco Comfort' receives one today 🥳

Tried and Tested by The Sleep Advisors, we've awarded them the 'Best Pocket Sprung Mattress'🏆

#thesleepadvisors #silentnightbeds #thesleepadvisors #comfortmattress
Details are key for TheSleepAdvisors... especially for those close-ups 👁

We look at every nook and cranky to capture every detail when reviewing mattress and bedding🎥

For our Latest reviews head over to our website via the link in the bio 🔗

#thesleepadvisors #mattressreview #thesleepadvisorsuk
If you want Luxury check out @nectarsleep Premier Hybrid Mattress!😎

Tried and Tested by The Sleep Advisors, we've awarded them the 'Best Luxury Mattress'🏆

Click the link in bio to read the full review 📖🥸

#thesleepadvisorsuk #awardwinningmattress #nectarsleep #mattressreviews
We know how hard it is to find the best mattress online!🧐

Don't worry, The Sleep Advisors are here to solve your problem and it has never been easier to compare mattresses thanks to our Mattress Comparison Tool!

Click the Link in our bio to find the mattress brand that suits your individual needs 🤩
For all your bedding needs, TheSleepAdvisors have you covered! 😁

From Price to Quality, we look at all aspects to enable you to make the best purchase for your needs.

#ɪɴsᴛᴀʀᴇᴇʟs #instareels #sleepadvisorsuk #BeddingEssentials #TheSleepAdvisors
Sent an embarrassing text? Just say you were asleep 😆

Turns out, our brains can get so wired even while catching Z's that we end up sending messages without even waking up! 

 #funfacts #sleepadvisors #TheSleepAdvisors  #DidYouKnow #DidYouKnowThis
Mattress Toppers are key! 🔑  They can bring your mattress to life. Want to learn more? 

The Sleep Advisors have got you covered!😎

#ɪɴsᴛᴀʀᴇᴇʟs #instareelsdaily #instareels #sleepadvisorsuk #reelsofinstagram #MATTRESSTOPPERS
Close button

Don't Miss Out!

Get the latest reviews, special offers, new releases and more…

By submitting this form, you are opting into our mailing lists.
See our privacy policy.

This field is for validation purposes and should be left unchanged.