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Simba vs Eve Mattress Reviews

Compare Simba and Eve mattresses side by side: owner satisfaction, support, durability and price, based on aggregated customer reviews.

Checked byBecky Reeve, Editorial Director, Mattress Expert
SourceCompiled from WantMattress review data

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Brand

Simba

Our pick
Overall score4.8/5
Price range£399 – £2,399
Brand

Eve

Overall score4.5/5
Price range£400 – £1,299

On aggregated owner reviews, Simba scores higher: 4.8 against 4.5 out of 5.

Head to head

Simba has 9 of its 10 mattresses sprung; Eve has 7 of its 11 mattresses sprung and 4 all memory foam. Simba runs from medium to medium-firm, and Eve runs from soft to firm. Eve covers more of the firmness scale, which helps if two sleepers need different feels. Both start at much the same price. But at the top end Simba goes further, so it also has the more premium options. Simba's owner score rests on far more reviews (12,329 against 2,714), so treat Eve's number as the less settled of the two.

How they differ

SimbaEve
Mattresses we list1011
Price range£399 – £2,399£400 – £1,299
Owner rating4.8 out of 5 (12,329 reviews)4.5 out of 5 (2,714 reviews)

Mattresses only. Ratings are the review-weighted average across each brand’s mattresses on UK retailer sites. Prices read 11 October 2026.

Simba

Simba have been in the bed-in-a-box industry since 2015. Simba started its journey with one mattress before branching out to encompass an entire range. These aren’t just any mattresses though, and they have been tested using data from ten million sleepers’ body profiles and over 100 prototypes to help ensure that the mattress and its design will suit the vast majority of sleepers. To date the Simba lineup has become one of the most well-reviewed mattresses worldwide and with the new line-up, there's different models to suit different budgets.

Simba has an entire lineup dedicated to bed in box rolled mattresses. This avenue to market has become increasingly popular in recent years and has numerous benefits, namely that the cost of the product is typically lower due to savings within logistics warehousing and delivery.

Eve

Eve Sleep emerged in 2014 as a prominent online retailer specialising in mattresses and sleep accessories. The company gained recognition for its clever approach to mattress design and marketing, offering a range of products aimed at improving sleep quality. In 2022, Eve Sleep was acquired by Bensons for Beds, further solidifying its position in the sleep products market.

Eve Sleep's product lineup includes various mattress types, such as memory foam and hybrid models, catering to diverse sleep preferences. In particular, the company introduced the "Wunderflip" mattress, designed to offer two levels of firmness by simply flipping it over, allowing users to customise their sleep experience.  Eve Sleep provides a 200-night trial period, enabling customers to thoroughly test their mattresses.

Simba owner satisfaction

Satisfaction for Simba is high on their priority list, offering an impressive comfort guarantee which means that if you are not 100% satisfied with your purchase you are able to organise a return for a full refund. The return process is one of the easiest we have come across and involves letting the company know and they will arrange collection at a time convenient to you. Additionally, there are no additional surcharges, costs or delivery fees associated with the returns process which means you get 200 nights risk free to try the mattress.

After this trial period you will also receive a 10 year guarantee that will further instil confidence and ensure your investment is protected long term.

Simba supportiveness

Simba have multiple mattresses in their range, however all offer roughly the same level of supportiveness coming in at a medium firm tension. The comfort that you derive from a mattress will generally come from the top layer that sits somewhat detached from the support layer. The support layer is what contours and fights against your body to give you pressure relief. Depending on how you sleep or how much you weigh are both factors in determining suitability of tension. With the medium firm support of the Simba lineup we find them most suitable for back sleepers and those of average or heavier build. That said, due to the inclusivity that Simba has aimed to achieve through its prototypes and extensive testing, we do have plenty of reports of side sleepers and those who are lighter getting maximum comfort out of the lineup.

Simba durability

People are increasingly expecting more from their mattresses with more comfort and more support on offer than ever before. It’s actually a really great time to buy a new mattress as companies new and old are changing the way they do business and produce mattresses with improvements and savings along the way. The same has become true for durability and while the average lifespan of a mattress before being replaced currently lies at around 7 years, the Simba goes above and beyond with a guarantee covering a full 10 years. The result of mattresses lasting longer is the cost of sleep actually decreases relative to cost and time meaning products like Simba may be cheaper in the long run due to that enhanced and increased durability.

Simba best offers

We've managed to find the following top deals from across the web on Simba mattresses.

Eve owner satisfaction

Most owners are happy with their Eve, and the word that comes up again and again is comfortable. One owner wrote that it is “soo comfortable and the right firmness”. Another, a week or so in, said “it's super comfy now”. That settling-in period gets mentioned a fair bit, a few nights to a few weeks before the mattress feels right. A smaller group with bad backs say the pain has eased, one noting they “no longer wake up with back pain”.

Complaints are less common and tend to be specific. Some find it firmer than they expected. One wrote that it is “way too firm and has caused me back ache”. A few report early dipping: one owner on their third replacement described a mattress that “dipped at both sides”, and another said theirs “Dips in the middle and is unsupportive” within a fortnight. A few also gripe about the edges, from “sink in when sat on the edge” to “edges are so soft you nearly fall off”. Eve’s listings describe the foams as breathable, and the reviews split on heat: some owners report no overheating, while others find it “a lot warmer than our old mattress”.

Eve supportiveness

Eve Sleep mattresses are renowned for their exceptional support, attributed to the innovative use of high-quality foams and, in their hybrid models, full-sized pocket springs. The Original Hybrid Mattress, for instance, features over 800 individually wrapped 12 cm springs that respond to the body's movements, providing targeted pressure relief for the shoulders and hips. These springs are complemented by Eve's proprietary evecomfort® foam layer, which offers a springy feel to support key pressure points and maintain spinal alignment. This combination ensures a harmonious balance of support and body contouring, catering to various sleeping positions.

Eve durability

Eve Sleep mattresses feature polyester covers, known for their soft, stretchy, and breathable finish. This type of cover provides a reasonable level of durable protection, contributing to the overall longevity of the mattress. While the Eve lineup is relatively new, the bed-in-a-box mattress market has established a reputation for durability comparable to traditional mattresses. Considering that the average mattress lasts about 7 years, we have no concerns regarding the performance and durability of the current Eve lineup.

Eve best offers

We've managed to find the following top deals from across the web on Eve mattresses.

Owner reviews of Simba mattresses

5 Anna B.

We've been needing a new mattress for a long time, to replace our turn of the century Sealy memory foam mattress and divan bed, which we have had lots of use from (2nd hand from family when we got it). We wanted to invest in a really high quality, low environmental impact mattress (and bed) that also ticked all the boxes for comfort, support, no nasty off-gassing chemicals, made with natural materials and market leading durability. This was a huge outlay for us and we've been thinking about it for a few years. We're now in our mid 50's and know that a good night's sleep is crucial, particularly as I'm a light sleeper and have suffered from back and hip pain in the past. Our old mattress was smelly, well past its prime and I dread to think what might have been living in it (and on us!). So, we see this new Simba mattress as an investment for our future. Lots of really helpful info on the website and very enticing video of the mattress we were considering. Once we decided to go for it, we had a bit of trouble paying for the order on the website as I couldn't figure out how to set up the credit facility to spread the cost. In the end I had to message Simba about it and soon after was given the option of having a callback slot, at a time to suit me, to speak to a person. The customer service chap rang me at the allotted time and was very helpful and polite, who helped us resolve the issue, with the added bonus of a further code to use to get free collection of our old bed and mattress, which saved us £50, that really made us happy. We are very pleased with the promotional offer of free high quality Simba bedding as well (2 pillows, duvet and mattress cover), so felt that although it was a big expense, we were buying the best we could afford and were being treated very well as customers. Following the email confirmation of the order after purchase, a day or two later we received details of the VIP service delivery and the date suggested worked for us. So, within a week of placing the order we would get our new bed and mattress (we live in rural Wales, not that easy to get to). Two gentlemen from the delivery company arrived on time, carefully backed up their van on our narrow driveway, carried in the bed and mattress with care, they were really polite and quietly got on with the job of building the new bed. They would have removed the packaging too, but I asked if we could keep it, no problem at all! They removed our old bed and mattress and so within the hour of their arrival we were all set up with our new bed and mattress. Fab! The mattress is very different to our old memory foam one. It's much deeper, heavier and firmer. I'm a side sleeper, but occasionally sleep on my back. It did take me a few days to get used to the new firmer support, but it does have lovely soft cushioning in the top layer. After a few weeks we are now feeling much more comfortable on it than we did initially. I can feel it does give me much better support, as am not getting back pain from sleeping on it. My husband really loves it. According to our Fitbit watches, which we wear at night, we are generally getting a good quality night's sleep (we just need to get to bed earlier now to make the most of it!). For me, with a very sensitive sense of smell, there is also a slight scent of sheep wool, which was stronger to start with. I actually like this smell, and it reminded me what the mattress contains, natural fibres, not off-gassing of chemical VOCs. But, we do make sure we air the bed each day, which is good sleep hygiene, whatever mattress you're on. The mattress comes with helpful information about how to care for it. It definitely will need two of us to turn it every so often, way too heavy for me on my own. I do find changing the bedclothes harder work, as the mattress is heavy to lift to get the fitted sheet on it, especially at the head end. So bear this in mind if you live on your own and you order King Size! You also need to use extra deep fitted sheets. We hope that it'll remain this comfortable for the next 10 years, reassured by the guarantee and love the fact that the mattress was made only a couple of weeks before we bought it (the label on it states when it was made). Nice to think it's not been sitting very long in a warehouse somewhere before we received it. Lovely to know that its recyclable at end of life too and we're supporting a certified B Corp. Fingers crossed we'll both be still sweetly sleeping on it well into our 60's.

4 Martin D.

So, two weeks ago, I got a response from the supplier of my previous mattress (Emma) saying that due to some sort of restructure, they wouldn’t be able to deliver a new mattress for weeks. They gave me the option to get a refund, which I took. I needed the mattress by that Sunday at the latest as that’s when my temporary accommodation in the Airbnb that I was staying at came to an end and I needed to sleep at my new less-temporary, but unfurnished accommodation. My previous mattress had been damaged by the water ingress at Coniston House (google it for stories in the Standard and The Slice, Tower Hamlets if you're interested). The ongoing works on my building necessitated the move. Anyway, I found a roughly equivalent mattress sold by Simba, which is UK-based and B Corp certified. It is a bit more expensive, but hey, it was an emergency and they offered to deliver the next day if ordered before 1 p. m. This is when it all went horribly wrong. Simba sent the mattress by DPD and DPD’s tracking showed it was out for delivery. The delivery slot came and went and then the tracking said they were running late. Phoning DPD to find out what was going on, they reassured me that they would deliver it that day, but it appeared from the tracking that it had gone back to the depot. I waited in until 8 p. m. The same thing happened on Friday, the contact centre reassured me that it would be delivered, but tracking I could see showed that it was still at the depot. I eventually got a call back from the depot who said it wasn’t out for delivery after all and wouldn’t be delivered that day (despite what the call centre had said). DPD booked it in for a Saturday delivery. Saturday came, again, the same pattern and no delivery. The DPD contact centre doesn’t seem to have any way to contact people on the ground, and I won’t call it lying, but they make statements (e. g. that they will certainly deliver today) which they clearly don’t have the information to back up. On the Monday, I had an exchange with Simba, who arranged for the delivery with DPD to be cancelled. I had to go to the office on Tuesday (I had already spent several days trapped working from home by DPD), so Simba arranged to send out a replacement with ao. com’s logistics on Wednesday. On Wednesday, Garry from AO called me first thing to say he was delivering that morning, and he called again when he was on the way from his previous job. Delivered direct to my door, no fuss. It seems from other reviews of DPD that mattress delivery and other heavy/bulky items are a recurring problem for DPD. I would give Simba five stars, especially for fixing the mess as promptly as they could. However, it was their choice in the first place to use DPD where there appear to be known issues with their performance. If Simba turn to using AO for all their deliveries, I would give them an unqualified recommendation as the mattress is super comfortable and their customer service is helpful and responsive. Most importantly, over the last week, I've had the best night’s sleep I’ve had in over a year!

2 Maria T.

Despite Simba resolving delivery issues caused by a very dishonest courier, they were also very quick to treat me as though I was lying about not receiving my £1,800 order. Whilst I understand there will be some apprehension due to other dishonest customers, there was no need for the passive aggressive emails and chat messages I received. As soon as I said I lived within MOD barracks and there was no record of the delivery truck or drivers, they sent out a replacement order immediately without explanation. For the mattress itself, I must say that both my husband and I don’t feel it (or the pillows/duvet/mattress topper!) are worth the high prices. We’ve tried to give it time as they say it takes a while to get used to a new mattress, but I really expected to be wowed by a mattress that costs so much, and I’m just not. There are already significant flat areas where my husband and I sleep, despite rotating as advised, which only happened with our old mattress after around 8 years. The pillows come with extra foam cubes so you can fill them more and thus make them firmer, which is great in theory, but I can feel the bumpiness of the cubes under my face, despite distributing them and shaking the pillows etc. Not to mention the fact that the pillows cost so much and are literally just filled with cubed sponge. The quilt is fine, it’s neither here nor there, the buttons can be felt through your duvet cover in the corners which is mildly annoying but the best part is this retails at £399…! The mattress topper is, again, neither here nor there. We tested the mattress without it for a night and it felt exactly the same, so I’m not sure what it really adds. The only good thing I can state about the mattress is that it’s a great level of firm for us (we prefer a more firm one), but again, the cost is not worth this alone, and I’m fairly certain I’d be able to find another for half the price and that feels the same. Sorry, Simba. I will add that we also purchased two inter mattresses for our kids and these are lovely - kids have commented how much they love their new beds and how comfortable they are, which was really important for us while they’re still young and growing. Perhaps we’d be best returning the Luxe and getting an Inter.

1 Stephen P.

Sadly, I cannot recommend Simba based on my experience. I ordered a mattress advertised as being 25 cm deep. The first mattress I received measured approximately 22 cm. It was only after raising this with Simba that the ±2 cm manufacturing tolerance became particularly relevant. This tolerance is contained within their Terms & Conditions, but in my opinion it is not made sufficiently clear alongside the advertised mattress dimensions when purchasing. A ±2 cm tolerance on a 25 cm mattress is actually quite significant — potentially anywhere between 23 cm and 27 cm — and I think this should be made much more obvious to customers before they buy. Even allowing for that fairly generous tolerance, my first mattress at approximately 22 cm was still outside Simba's own stated specification, so they agreed to replace it. Unfortunately, the replacement mattress measured approximately 22.5 cm — once again outside their own stated tolerance. Despite this, I was then told that the 22.5 cm depth was fine and would not affect the performance of the mattress. This completely misses the point. If a product is prominently advertised as being 25 cm deep, and the manufacturer already allows itself a ±2 cm tolerance, I don't think it's unreasonable to expect the product supplied to at least fall within that range. I specifically needed a 25 cm mattress, which was one of the reasons I chose this particular model in the first place. After receiving two mattresses outside even their own stated tolerance, Simba were unable to guarantee that another replacement would meet the advertised specification. I was therefore left with the only realistic option of returning it for a refund. My experience has left me with very little confidence in the accuracy of Simba's advertised dimensions or their manufacturing quality control. I own foam mattresses from other manufacturers that measure within just a few millimetres of their advertised dimensions. By comparison, receiving two Simba mattresses that were both outside even Simba's own ±2 cm tolerance suggests to me that their manufacturing and quality-control standards are simply not good enough. If a mattress is advertised as 25 cm deep, customers shouldn't have to search through Terms & Conditions to discover that it could actually be several centimetres different — and even then receive a product that falls outside that tolerance.

Owner reviews of Eve mattresses

5 Stryder

These really are very good mattresses! One of my main concerns was the reports and even some of Eve's own documentation regarding the new smell / odour of the mattress as from experience things that give off an odour tend to make me feel unwell pretty quickly, this mattress does give off an odour but apart from a slight headache on the first night it really hasn't affected me since. No the smell does not entirely disappear after 48 hours as some say, but it does get progressively better, make sure to air the room well and regularly, also move on the mattress to get air to pass through it... hopefully if you give this mattress a chance like us you'll find it very comfortable and super supportive, if this mattress can keep delivering this level of comfort and support for 10 years it will be money well spent. It is an expensive mattress though and I would have like to see a bit more attention to a few areas, the mattress has a removable washable cover and that's fantastic, but it means the handles are located under the mattress which means lifting the rather heavy mattress to access the handles, there needs to be a better solution here. We find the mattress firmness just right but others who try it think it would be too hard for them. Overall if this mattress does last out the 10 year guarantee period then I'll have to remember to come back to this review and give it the full five stars for Quality and Value For Money but for now it's too expensive and too new to go that far.

5 Peter

I wrote the following review on November 18th 2020 two weeks after using my Eve Sleep Hybrid mattress. Everything I said then still applies and I love the mattress. Brilliant product and fantastic sleep every night. I have been getting up every morning for nearly a year with back pain. Knowing I wanted a new mattress, searched the internet looking at all sorts of different products with varying prices. I looked at various reviews, but none seemed conclusive, so signed up for Which. A good move because Eve Sleep was not on my list. The review for the Premium Hybrid Mattress was exceptional. I ordered online, and the process was incredibly simple. It could not be better. Notifications of delivery were brilliant, and I even got a call 30 minutes before the delivery arrival. The guys were so good and polite. The mattress comes in a box, and the instructions give all the information in a truly clear manner on how to unpack and install on the bed. I left the mattress for 24 hours before using, although this is not necessary. I knew after the first night sleeping on the mattress, it was without any doubt a brilliant purchase. I have now been sleeping on my Eve Mattress for two weeks, and it is fantastic. I look forward to going to bed and do not want to get up in the morning. The whole experience from beginning to end has been exceptional. It is very reassuring to know there are still companies that give a faultless service and have a product to match.

4 JoanneD

We bought the original hybrid mattress double after reading Which reviews, it turned out to be a on the firm side for us so we returned it after around 50 nights. The customer service, ordering, delivery and return process was excellent. We are both mostly side sleepers, I experienced hip pain/pressure during the night and had to change position often and my husband just felt that it was too firm for him. We were still a little tired through the day and put it down to our personal discomfort in the end, the mattress was supportive and we had no back pains in the morning. I had ordered a replacement mattress so that we weren't left without anything to sleep on and contacted eve to return the original hybrid once we had a delivery date. The return process was hassle free and very efficient, we found that we were able to give three dates for the return and add any comments. In hindsight, knowing that the return was so well organised, we would have trialled the mattress for longer to see if it softened up a little or we adjusted to it more as it would still have been easy enough to organise a replacement if it was needed. I was just worried that our trial period would run out before we could get anything sorted but the process was much quicker than I thought. We have still to find the perfect mattress for us and do regret the return without persevering a little longer as the replacment that we did order is terrible.

1 Been rippedoff

Purchased is Mattress 27 days ago myself and my wife are still wakening up the Morning with the Same Hip Pains that we had before. So contact this company now 3 times but have been told after 12 Days you pay 10% so they want £56? Even if was going to take an other mattress if more expensive you pay the Difference iagree.. But if the mattres was say £200 Cheaper you don't get nothing for an exchange so that my reason that want Refund But Told they don't do Refunds.if get a other mattress you pay again the delivery cost again so Beforei even look at a mattress iam going to be £96 out of Pocket you pay the £39.99 exchange I'd rather Loose my £500 then Do Trading with this Company of vomet an other Panny.. The Parts they don't Tell you as for the chap on the phone that I spoke to this after noon was clueless apart from telling me not intiteled to any Refund he was so useless and I was about falling asleep with him and told him that three times your so slow am about falling asleep let me talk to some body else but refused as half the time I don't think he was even listening to my complaint and told him you are already steeling £96?? For nothing advent charge.. but must purchase from this shower that to be Honnest now wish had just stuck with Dreams for Bed Hastle Free and Delivery is free even if you don't want the Bed picked free and no Hastle Refund..So if your thinking in purchasing a bed you only get one chance or it's going to COST YOU.£100 For Nothing they Don't Have A Refund Policy..Will take your Money But Don't Expect Anything in Return yo Will Be The Same As ME £100 out of Pocket For Returning something you Seat on for Five Minutes and Thought that felt comfortable and right for you Remember that mattress in the shop has been sat on and tested probably Thousands of times Yes it Feels Soft and Comfortable.. You Then only Have 12 Days to change it..After that like me you will loose £95.. before you more for another..Take This On Board Before you Purchase Think Twice..A Company that only help if the Goods Are Flawed. It's would be your Word agenst There's..There's only one Winner with this Company it's not YOU..Sorry and will not be Handing over an other Penny..Will be Taken my Cusom To A company's not far from them that Delivery take 7 days not Three Weeks..Plus HALF the delivery time for FREE.. It's like a Dream,! Yes it is a Dream#Dreams for beds..T

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