Excellent, both delivery & product. Firm mattress with no side give, which as an “edge sleeper” is a rarity. It is quite heavy but manageable, took only 4-6 hours to fully expand & no “new”... See more
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Replaced our old ergoflex, also bought one for our spare bed too. I can’t recommend them enough, so comfortable, worth every penny, have recommended to everyone who will listen. Excellent service, tha... See more
We bought this mattress 5 weeks ago after 10 years on the old one. Myself and my husband are pensioners and both agree that we are having the best night's sleep ever. Although we were expecting to... See more
We had an old Ergoflex mattress that we inherited and used for 7 years and found it very comfortable. We changed to a conventional mattress when we moved and found it to be uncomfortable and when on... See more
Company details
About Ergoflex
Written by the company
Ergoflex - The UK's Original Mattress-in-a-Box - Highest Rated TrustScore
Ergoflex introduced the mattress-in-a-box category in the UK back in 2006 - a full decade before the competition caught on. The Ergoflex 5G is the product of everything we've learned since; premium materials, enduring comfort and an industry-leading 4.8 Trustscore from thousands of independent reviews.
Our signature true high-density disco elastic memory foam contours precisely to your body to relieve joint pressure and ease back pain. The Cool-Sleep airflow system keeps air circulating throughout, ensuring a comfortable temperature. Beneath it all, a high-resilience base layer gives the Ergoflex 5G its legendary durability - no sagging, no compromise in comfort, year after year. With a naturally breathable TENCEL cover that's removable and washable, we've created the perfect sleeping solution - and our customers agree.
As well as class-leading products, Ergoflex® also offers first rate customer service and aftercare. No chat-bots, no automated responses and no extensive wait times on email. Our phone line and email system is staffed by our friendly professional expert team, who are ready to answer any questions or queries you might have.
Check out our reviews then compare to other mattress-in-a-box brands - the difference is clear.
Loved by Customers. Loved by Experts.
Written by the company
- Ergoflex® is a 2025 Which? Best Buy Mattress
- Our mattress has earned another prestigious Best Buy accreditation from leading consumer group Which?, with particular praise for durability, breathability and long-term performance. As the UK's original mattress-in-a-box company, established in 2006, we know that our customers agree.
- Ergoflex® is Recommended by Expert Reviews
- It’s not just our customers who love the Ergoflex® mattress, the team at Expert Reviews do too. Their specialists put our mattress through its paces over an intensive test and found it to be a supportive, back-friendly choice, awarding a much sought-after “Recommended” accreditation.
A Tried-and-Trusted 10 Year Warranty
Promises Kept Since 2006
As the longest-established mattress-in-a-box brand, in business since 2006, we know our mattresses last the distance in the real world. That's why you can trust our ten year warranty - it's not a marketing gimmick, a copycat claim or guesswork - it's the real deal.
Contact info
Save up to 61% against competitors
4.7
Excellent
2K reviews
Asks customers to review
This company invites their customers to review, whether positive or negative
Replied to 87% of negative reviews
Typically replies within 24 hours
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great nights sleep
very clear online purchase very fast delivery and vacuum packed.
Iv had a memory foam matrress before but this is significantly improved. Great night sleep.
February 20, 2026
Prompt delivery easy unpacking.
Prompt delivery easy unpacking.
Great nights sleep so far , thoroughly recommended.
February 27, 2026
Easy ordering
Easy ordering, next day delivery but I dont feel its as comfortable as our previous memory foam mattress, happy with the quality and it seemed good value against other options
February 17, 2026
These mattresses are top quality
I have all these mattresses on my beds they are what I found to be the best even better than tamper the only thing is that the cover that came with the original one I had years ago are not as good otherwise than that they are brilliant
February 20, 2026
Had "Temper" for number of years and…
Had "Temper" for number of years and found uncomfortable and difficult to roll over in bed. Since having the Ergoflex mattress had more comfortable nights sleep.
February 19, 2026
Love this mattress firm but comfortable…
Love this mattress firm but comfortable sleeping really well. We’ve had Emma & Simba and have all been returned. More than happy with our Ergoflex Mattress really heavy nice a firm but you still have that little bit of sinking into the mattress feeling really comfortable 10/10 from myself and my husband we both have back problems but this mattress is exceptional
February 11, 2026
A very straightforward, effective matress replacement.
Everything about this new mattress has been excellent, from initial sales information to ordering, delivery, unpacking and use. Initial slight smell as would be expected which has quicky disappeared. Very comfortable, good quality, good price, a welcomed addition to our home.
February 18, 2026
May be tooooo hot for you to handle
The purchase and delivery were ok, however the mattress itself is very hot, I would say the mattress material holds the heat in too much, we are experiencing disturbance due to this issue, it’s nice given it’s winter to be warmer than or old mattress however we end up uncovering our selves at night to cool off, not sure yet as to how it will be in hot weather, it’s certainly giving a nice sleep and great support, however it’s just soon becomes uncomfortably warm, their mattress protection sheet at around £50 which I purchased two of soon required changing due to the heat making you sweat, very good support for your back,
February 17, 2026
Reply from Ergoflex
Thank you for your feedback. We’re really sorry you’re finding the mattress too warm at the moment, and we have been in touch to offer some comfort suggestions. We hope this helps, and of course feel free to get in touch at any point on sales@ergoflex.co.uk or 0800 0241 122.
Matress is comfortable
February 9, 2026
Perfectection in a mattress
So happy with our purchase of this mattress, even better than I thought, no getting used to it, first night perfect sleep and the pillows have been great no more neck pain!
Very quick delivery .
Just wish I had ordered sooner.
Would recommend without a doubt.
January 14, 2026
Excellent purchase
I dithered about which mattress to order and spent weeks reading reviews of various makes. I felt that Ergoflex were offering what I wanted and within 2/3 days of ordering it was delivered. I am absolutely delighted with it. I can’t remember when I was last so comfortable in bed.
February 10, 2026
Comfy nights
We are at the moment in a 5 star Hotel in Spain sleeping on a new luxury sprung mattress having slept at home on our new Ergoflex. It’s agony compared to our lovely home bed. Cannot recommend the Ergoflex higher
February 10, 2026
Ergoflex Matterass
Delivered on time. Unpacked it and along with Pillow I also bought i have to say it's extremely comfortable.
I don't wake up on a morning now with aches and pains like I used to do.
Im pleased I bought these items.
February 9, 2026
Easy to get through tighter stairways and doors
Great that it came rolled up and we were able to get it up to our attic room.
Once unfolded only took a few hours to become a full sized mattress.
We both find it very comfortable
February 3, 2026
Excellent product
This matterac was my first choice bcs of good reviews from the customers, I am happy with product, comfortable and good night sleep and i highly recommend for the next clients.
January 23, 2026
Super mattress
Great service and super comfy mattress especially as I suffer from osteoarthritis.
January 21, 2026
Firm but comfortable
I have been looking for a firm mattress which is not too heavy and this one fits the bill perfectly. I am now getting a good nights sleep and don't wake up with backache
January 13, 2026
My experience in purchasing Ergoflex…
My experience in purchasing Ergoflex mattress has been positive. My mattress was delivered as promised. I was kept informed throughout. My wife, has said that, she sleeps better and wakes feeling less aches and pains than with our previous mattress.
January 7, 2026
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