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Hypnos vs Ergoflex Mattress Reviews

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

Checked byBecky Reeve, Staff Writer, Mattress Expert
SourceCompiled from WantMattress review data

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Brand

Hypnos

Overall score4.6/5
Price range£478 – £4,599
Brand

Ergoflex

Overall scoreNot yet scored
Price range£369

Only Hypnos has enough owner reviews to score, so there is no head-to-head verdict here.

Head to head

Ergoflex is all foam, with no springs anywhere in the range, while Hypnos is sprung throughout, with pocket springs or a hybrid build in every model. If you know you want springs under you, that decides it: Hypnos. Only Hypnos offers latex, in 14 models. Hypnos runs from soft-medium to extra firm, and every Ergoflex mattress is medium-firm. Hypnos covers more of the firmness scale, which helps if two sleepers need different feels. Ergoflex is the cheaper way in, though not by much. At the top end Hypnos goes further still. Ergoflex doesn't have enough owner reviews with us yet to score fairly.

How they differ

HypnosErgoflex
Mattresses we list351
Price range£478 – £4,599£369
Owner rating4.6 out of 5 (697 reviews)Not enough reviews yet

Mattresses only. Ratings are the review-weighted average across each brand’s mattresses on UK retailer sites. Prices read 15 October 2026.

Hypnos

Hypnos is one of the oldest and most prestigious mattress manufacturers in the UK, founded in 1904. The company have perfected the creation of handmade luxurious pocket spring mattresses and are renowned as “one of the most comfortable beds in the world”, achieving the Royal Warrant and represent a highly regarded symbol that showcases the very highest standards in excellence and quality giving the owner of the title the ability to truly claim they are the best of british.

Ergoflex

Ergoflex entered the UK in 2006 and is one of the original bed-in-a-box brands, predating Emma, Simba and Nectar by nearly a decade. The brand has stayed true to a single-product philosophy throughout, with the Ergoflex 5G being the current and only mattress in the range. It is a deep, five-layer all-foam mattress measuring about 23 cm, built entirely from Ergoflex's own in-house manufactured foams and wrapped in a removable TENCEL cover.

The single-product approach is deliberate. Rather than splitting engineering effort across a dozen models, Ergoflex invests all of its development into refining the 5G. The result is a mattress that has been steadily improved over multiple generations without the complexity of a large catalogue.

Hypnos owner satisfaction

Owners of Hypnos mattresses mostly rate them well. The praise is mainly for the comfort, and plenty say they sleep better, wake with less back pain or found the price worth paying. One owner wrote “Firm is comfortable without being hard”; another, replacing a Hypnos after fifteen years, found the new one “just as comfortable”. The main complaint is tension, with a firm sometimes harder than expected and a medium sometimes softer, and a smaller number report early settling or a wool smell in the first few weeks.

Hypnos supportiveness

Hypnos mattresses are renowned for their supportiveness, offering a variety of different mattress tensions ranging from soft through to firm. The Hypnos lineup typically features pocket springs as a support layer which is thankfully one of the best bases you can get in mattresses. As a result, these mattresses are some of the best in the industry and with the wide range of tensions, there is something for everyone. Consider a medium tension mattress for back and side sleepers of most weight classes while a firmer might be more suitable for back sleepers or those with a heavier build.

Hypnos durability

Hypnos mattresses have a huge benefit over many of the competition when it comes to durability. That’s because they have a very no-compromise approach to their range of mattresses, giving you the best in materials and not working to the same sort of budgets as other mattresses. Featuring numerous natural materials and handcrafted in the UK, most mattresses are guaranteed for 10 years which is market leading and exceeds the average life expectancy of a typical mattress from other manufacturers. Additionally many of the lineup are 2-sided, meaning you get the comfort layer on both sides of the mattress which gives you twice the surface area, increasing durability and ensuring even settlement over time.

Hypnos best offers

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

Ergoflex owner satisfaction

Ergoflex carries OEKO-TEX certification on its materials and a 10-year guarantee as standard. The 30-night trial is shorter than most current rivals, with Emma and Simba at 200 nights and Nectar at 365, but it is enough time to form a proper opinion on the feel.

The single-product model removes the decision fatigue that affects buyers shopping brands with large catalogues. There is one mattress, one feel, one price. That simplicity is a genuine selling point for buyers who find the mattress market overwhelming.

Ergoflex supportiveness

The 5G uses a 9 cm high-density visco-elastic comfort layer for pressure relief, a 5 cm cool-sleep airflow system for temperature management, and a 9 cm resilient base for structural support. The overall feel is medium firm and the foam contours to the body progressively rather than sinking in immediately. Back sleepers and side sleepers of average weight are well served.

The deep all-foam build means the 5G does not have the bounce or responsiveness of a hybrid pocket spring mattress. Stomach sleepers and restless sleepers who change position frequently during the night may find the slower foam response restrictive compared with a spring-based alternative.

Ergoflex durability

In-house foam manufacturing is the single biggest advantage Ergoflex has on durability. Because the brand makes its own foams rather than buying from third-party suppliers, the density and quality of the raw material is controlled from production through to finished mattress.

The 10-year guarantee backs the build quality, and the removable TENCEL cover helps with long-term hygiene by allowing the outer layer to be washed independently of the foam core. For an all-foam mattress at this price tier, the durability profile is strong.

Ergoflex best offers

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

Owner reviews of Hypnos mattresses

5 Teresa Y

I tried this Hypnos mattress at our local store and knew instantly, that having looked for some time for a wool mattress that this was the one. The sales person at the store was very informative and there was currently a competitive price on it. It is an expensive mattress but learning about the credentials of Hypnos and how many hours of a life are spent sleeping, it seemed a sound investment. Bensons really provide a good service, taking away our old mattress, and the crew who delivered it were friendly and professional. The mattress initially felt hard, but that is to be expected with a new bed. I have been rotating it once a week and can feel that it is beginning to relax. It feels higher than our previous mattress and quite luxurious. One of the factors that drew me to a wool mattress was to have cooler night sleeps. As its winter I've yet to test this out. Overall I am really pleased with this mattress, and am sleeping much better than previously. The only negative is the wait for delivery which was around 2 months! However I believe that this is because it is a quality product with hand made attention. Finally the follow up email communications with Bensons has been great, which makes you feel that you are a valued customer.

5 Petra

I waited approximately 6 weeks and several mattress turns before my review for my Hypnos Earth 01. I changed my original mattress from Bensons for this one, big upgrade £ wise. I wanted a firm mattress with a soft outer. I took the advice and swapped for the Hypnos 01 Firm instead of Extra firm. The mattress is super comfortable just dips a little when in it (I weigh 9.5 stone). I have never slept better so now I can justify the outlay! No getting used to it at all, I drop off so quickly and stay asleep all night. On reflection I would have ordered the Extra firm as this mattress is well padded with my theory being it might last longer but I know diddly squat about mattresses to be honest. Really impressed with Hypnos though, lovely quality. Onto Bensons; they were so helpful. On changing my mattress to communications generally just excellent. From customer services, the delivery coordinator and the delivery guys. It really blows your mind when you get really good service these days, they follow through on everything. My sister in law recommended them, she wouldn't use any other company and I see why! Highly recommend and many thanks to you all. A happy sleeper ????

1 Amanda G

Exchanged our mattress to the medium tension this was the biggest mistake we've ever made. Warning to everyone this states medium but it is so soft instantly I was in so much pain with my back cannot sleep on it at all £2700 down the drain. we are not heavy people and even after a short time there is dipping. My husband has been persevering on it to see if we just needed to adjust but definitely not The mattress is too soft. I personally cannot sleep on it at all and I'm currently in another room until we have the chance to go out and find another mattress. This really was a huge mistake, particularly after going on Hypnos website and themselves even stating a lot of their mattresses are sold and marketed as medium but in fact they feel is medium soft. This is nothing like what we tried in store absolutely devastated.

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