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Eve vs Coolflex Mattresses

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Eve

Eve Sleep emerged in 2014 as a prominent online retailer specializing 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 customize their sleep experience.  Eve Sleep provides a 200-night trial period, enabling customers to thoroughly test their mattresses.

Read our full Eve review

Coolflex

Coolflex is a value hybrid mattress range sold exclusively through MattressNextDay. The brand has grown from a single rolled mattress into a catalogue covering multiple construction types with a specific focus on cooling technology at accessible pricing. The range includes the Essentials Pocket Memory Hybrid, Premium Memory Hybrid, Hybrid Ice, Hybrid Chill and Lux Ortho Pocket, each targeting a different buyer profile.

What makes Coolflex worth looking at is the combination of proper pocket spring hybrid construction with cooling-focused materials at prices that undercut the major direct-to-consumer brands. For hot sleepers shopping on a budget, Coolflex is one of the first alternatives to consider.

Read our full Coolflex review

Mattress Score

Overall Score:
Eve: 4.41/5.00
Coolflex: 4.10/5.00

Price:
Eve: £250.00 - £1699.99
Coolflex: £149.00 - £399.00


Based on aggregated reviews and performance scoring, we would recommend Eve in this face off!


Becky
Compares

Eve Owner Satisfaction

Satisfaction with Eve Sleep mattresses remains high, with a solid score at the time of writing. Many owners praise the balanced comfort and support, particularly in the brand’s hybrid models, which combine foam and pocket springs for a responsive yet cushioned feel. Unlike some all-foam mattresses, Eve’s construction helps to minimise heat retention, with breathable layers designed to promote airflow throughout the night. That said, a handful of users have noted that the firmer models can take some getting used to, especially for those accustomed to softer sleep surfaces.

When it comes to pressure relief and spinal alignment, Eve mattresses generally receive positive feedback, particularly from those with back issues. The medium-firm options tend to provide good lumbar support, while the softer models cater well to side sleepers who need more contouring. However, some users have mentioned that edge support isn’t as strong as they’d like, meaning there can be a slight dip when sitting on the side of the bed. Despite this, the overall consensus is that Eve Sleep delivers a well-balanced sleeping experience, blending comfort and support in a way that suits a wide range of sleepers.

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. User feedback indicates general satisfaction with the expected lifespan, and 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.

Coolflex Owner Satisfaction

Coolflex reviews are consistently strong on two specific points: the cooling performance is real rather than marketing decoration, and the value for money at this price tier is hard to beat from the mainstream alternatives. MattressNextDay handles delivery and returns reliably, which gives the buying experience a stable foundation that standalone budget brands often lack.

Hot sleepers are the buyer profile most likely to rate Coolflex highest, because the cooling technology in the Hybrid Ice and Hybrid Chill models delivers a measurable difference from standard foam alternatives. The main complaint pattern we see relates to edge support on the entry-tier models, which improves as you step up through the range.

Coolflex Supportiveness

The pocket spring cores across the Coolflex hybrid range provide genuine structural support that pure foam alternatives at similar prices typically lack. The Premium Memory Hybrid is the sweet spot for most buyers, with a spring count and foam layer depth that handles average weight sleepers across back and side positions comfortably. The Lux Ortho Pocket handles the firmer end for stomach sleepers and back pain sufferers.

The Hybrid Ice and Hybrid Chill add cooling layers on top of the pocket spring base and are the models to look at specifically for hot sleepers who want temperature regulation alongside the hybrid support structure.

Coolflex Durability

The pocket spring and foam hybrid construction that Coolflex uses across the range is the build type we generally expect to last longest at this price tier. Pocket springs provide structural longevity that all-foam alternatives cannot match, and the foam layers above use reasonable densities for the price point. MattressNextDay backing gives the brand a retail infrastructure that supports warranty claims.

As a newer brand, the long-term durability data is limited compared with heritage manufacturers like Silentnight or Sealy, but the construction approach is sound and the early-year review data is consistent with what you would expect from a well-made hybrid at this price.

Coolflex Best Offers

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

Eve Most Useful Customer Reviews

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.

4 MRJ

Issues with delivery 1st attempt only the mattress topper arrived no mattress? Resolved following week with the help of Eve chasing logistics company. The Premium Hybrid Mattress King size is extremely heavy and glad we paid for 2 man delivery who struggled with the box up to the bedroom, interestingly the details on opening the box and mattress are actually printed on the inside the box? Unpacked the mattress and left it to inflate for a few hours .we both have found the mattress very comfortable on the firm side of medium. Only issue we have had was with the strong musty smell that has taken at least 1 month to fade and even now when you have left the bedroom door closed all day you get a faint whiff of it have 1 month left of the trial so will monitor it .The Handles for turning the mattress are located underneath the mattress i assume as being so heavy they would probably soon rip of the side of the mattress, this makes rotating the mattress very awkward as the mattress is extremely heavy ,due for a rotation this week so will get my son and daughter to do it for us. Think anyone should consider this as needs to be done regularly think there is a lighter hybrid version which on reflection would have been better for a pair of old codgers like us...for all my moans I must say it's very comfortable and appears to be of very good quality.......keep safe.

4 WEBCLIENT

Marketing over promises how good this mattress is. It is not bad but it is not brilliant either. Outer materials feel very synthetic and, as usually the case with rolled mattresses, is not double-sided. Make sure you get a decent discount - Eve play games with them but 25-35% off seems the target. I waited until it went down in price to about what it was 30+ days before. Feedback: Firstly, the super king is very heavy and, probably for some good reason, it unrolls upside down and has to be "flipped". There are some pointless handles on the bottom but they don't really help. We struggled. Secondly, the corners took a long time to go to shape - at least 48 hours. Next, the sides are very soft so collapse when you sit on them which is okay as long as you can easily get up to standing or do not want to sit there. Finally, the comfort to sleep on: this is a foam-topped mattress which means you sink into the foam layer with support underneath from springs. The top is soft and quite warm but kept cool by lots of dimples which you can feel. The core is firm and supportive. Overall result is that you are very aware of the foam and the bed is soft but also stays very flat. It improved my sleep after having a traditional and sagging Warren Evans mattress but don't expect miracles. We decided to keep the mattress - so do not be too put off.

Coolflex Most Useful Customer Reviews

4 Zoe91

Generally appreciative of the superior back support offered by this piece although individual spring design occasionally falls short on expected comfort levels. Overall, exceptional orthopaedic advantages and satisfactory pressure relief makes it a worthwhile purchase.

4 Spencer Hughes

Really can't complain about this mattress. It's provided me with solid support, I wake up feeling refreshed each morning. Ideal for us folk who sleep on our back.

4 JRCollins

Really loved the quality of the mattress, it's comfortable and offers good support as promised. Nice, cool and refreshing - definitely improved my sleep.

5 NewDave

Relishing the quality, the comfort level is just splendid. It truly enhances my nightly set-up, giving the refreshing sleep my body needs.

4 Sleepy5

After weeks of using this, I can say it's pretty comfortable. The memory foam contours my body well, offering decent support and comfort.

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