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Hypnos Cawthorne Luxury Mattress
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Hypnos Cawthorne Luxury Mattress

FirmnessMedium Firm
ConstructionPocket sprung
sleeping cat
20p per sleep based on average mattress lifespan

Searching for best deal
Reveal Offer Price and Go To Site *
100-night comfort trial at Mattress OnlineConditions
Remedy
An exchange, not a refund
When
After 30 nights' use
Condition
Buy a mattress protector from Mattress Online with the mattress
Old mattress removal
£35
Delivery
Free; to the room of your choice £20

Checked on Mattress Online's site, 10 October 2026. Full terms at Mattress Online

* We work with retailers to secure the best deals, outgoingOutgoing links are monetised

What our reviewers found

Pros

Good mid-range mattress from a premium manufacturer.

All the same great materials found in more expensive models.

Medium to firm tension when first reviewed (the listing now shows medium) tends to suit back and side sleepers.

No lead time and fast delivery, surprising as these are normally made to order.

Cons

The guarantee is 5 years, where most other Hypnos mattresses carry 10.

Owners mostly call it comfortable and supportive, but they don't agree on the feel. A few found it softer than the medium to firm rating it carried at the time (one wrote it was “Too soft despite saying it was medium to firm”), while others found it firmer than they expected or felt it needed a topper.

A few owners mention soft edges. One wrote that “The soft edging kept giving way as I got into bed”.

One owner reported grooves forming after a few months.

Introducing the Hypnos Cawthorne Luxury Mattress (listed as the Hypnos Hemsworth Luxury Mattress when this review was first written), a perfect blend of elegance, comfort, and sustainability that will elevate your sleeping experience to new heights. Expertly handcrafted in the UK, this luxurious mattress combines state-of-the-art ReActive™ pocket spring technology and eco-friendly materials to deliver a sleep environment that cradles your body while supporting various sleep positions. With a Royal Warrant held by Hypnos from His Majesty King Charles III and approval from the National Bed Federation, you can rest assured that you're investing in a mattress that has been carefully crafted for quality, durability, and a night of blissful, restorative sleep. Discover the excellent comfort of the Hypnos Cawthorne Luxury Mattress, and indulge in the sumptuous rest you deserve.

What materials are used to construct the mattress?

The Hypnos Cawthorne Luxury Mattress listing now shows 1400 ReActive™ pocket springs that adapt to your unique body shape, providing personalised support and pressure relief. Over the springs sits a durable eOlus™ dual density pad made from recycled materials, then a blended layer of wool and polyester fibres and a layer of rebound cotton and polyester.

How firm is the mattress?

Medium, according to the current listing; it was rated medium to firm when this review was first written. It is suitable for various sleeping positions, including side, back, and stomach sleepers.

Does the Cawthorne effectively regulate temperature?

Designed with built-in breathability and air vents, the Hypnos Cawthorne Luxury Mattress promotes increased airflow, ensuring a cooler and fresher sleeping environment all night long.

Is the mattress's edge support sufficient ?

Featuring rod edge wiring that connects the springs to the border, this mattress has a strong, durable edge that extends the sleeping surface. Two rows of hand side-stitching provide additional support to the border, offering excellent edge support for those who sleep near the edge or like to stretch out at night.

How well does the mattress isolate motion?

The individually wrapped pocket springs in the Hypnos Cawthorne Luxury Mattress deliver exceptional motion isolation, making it an ideal choice for couples with varying sleep patterns or night-time activity.

What type of warranty and trial period do you get?

The Hypnos Cawthorne Luxury Mattress listing now shows a 5-year guarantee, offering reassurance for purchasers. Mattress Online's 100-night comfort trial (an exchange, with a protector bought alongside) allows customers to assess its suitability before fully committing.

How simple is it to set up and maintain the mattress?

The single-sided design of the Hypnos Cawthorne Luxury Mattress necessitates only seasonal rotation, making maintenance relatively straightforward. Turning handles facilitate easier moving and turning.

Does the mattress have any certifications ?

The Hypnos Cawthorne Luxury Mattress is made by Hypnos, which holds a Royal Warrant from His Majesty King Charles III. It is also approved by the National Bed Federation and handcrafted in the UK, contributing to the local economy and reducing environmental impact. Made with eco-friendly materials, the mattress is fire-resistant and complies with BS7177: 2008 regulations.

How we reviewed the Hypnos Cawthorne Luxury Mattress

67 owner reviews analysed10+ years in the mattress industry3 reliability checksBenchmarked against 364 pocket-sprung mattresses24-point spec check4 buyer questions read370 price checks since Feb 2023

Drawing on over 10 years in the mattress industry, our team assessed the construction, materials and firmness of the Hypnos Cawthorne Luxury Mattress from its 24-point specification in Mattress Online's listing, and benchmarked it against 364 other pocket-sprung mattresses we track. We analysed all 67 owner reviews, checking 67 written ones for sagging, heat, firmness and smell complaints. We have checked its price 370 times since February 2023. How we review


Corrections

When we get something wrong, we fix it and say so here. All corrections

11 October 2026
We listed this mattress with 1200 pocket springs and a medium to firm feel. The retailer, which now sells it as the Hypnos Cawthorne Luxury, lists 1400 springs and grades it medium.

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Hypnos Cawthorne Luxury Mattress may feel.

SnoozeScore

Still not sure if the Hypnos Cawthorne Luxury Mattress is suitable for you?

Answer 6 quick questions to see how well this mattress fits you, and which mattresses fit you better.

Price history

From £488 (Single) at Mattress Online

Choose your size
£688Lowest we have recorded Read 9 Nov 2026 · excludes delivery
Shop King at Mattress Online

Our latest King reading against the last 90 days

Low £688 (6 Nov)High £785 (27 Oct)

King price, tracked since 27 Oct

Our readings of the King at Mattress Online over the last 90 days ran from £688 to £785.

SizeLatest readingReadLowest readingOnTracking since
Single£4889 Nov 2026£4886 Nov 202627 Oct 2026
Small Double£5949 Nov 2026£5946 Nov 202627 Oct 2026
Double£6249 Nov 2026£6246 Nov 202627 Oct 2026
King£6889 Nov 2026£6886 Nov 202627 Oct 2026
Super King£8149 Nov 2026£8146 Nov 202627 Oct 2026
Super King Zip and Link£1,2889 Nov 2026£1,2886 Nov 202627 Oct 2026
Emperor£9949 Nov 2026£9946 Nov 202627 Oct 2026
European Double£7049 Nov 2026£7046 Nov 202627 Oct 2026
European King£7489 Nov 2026£7486 Nov 202627 Oct 2026

Prices exclude delivery. How we record prices: our mattress price report.

How it scores
of the Hypnos Cawthorne Luxury Mattress
Scored from the build and owner reviews: each measure starts from how this construction usually performs, then moves with what owners of this mattress report against owners of similar mattresses.
Scored from the build and owner reviews: each measure starts from how this construction usually performs, then moves with what owners of this mattress report against owners of similar mattresses.

Suitability

  • Back Sleepers 4.5/5
  • The amount of support offered from a mattress will vary depending on the firmness of the tension and the type of support layer used. Based on a person of average build.
  • Side Sleepers 4/5
  • If you sleep on your side you typically need a supportive tension that is not too firm, nor too soft. This is because your hips and shoulders need adequate sinkage.
  • Stomach Sleepers 4.5/5
  • Stomach sleepers need a reasonable amount of tension in the base support layer to adequately offer body contouring and help prevent aches and pains. Results will vary based on your build.

Performance

  • Breathability 5/5
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress 5/5
  • Certain materials like memory foam can make it difficult to move about on the mattress while you toss and turn. Same too for pillow tops which can create a cloud like sensation which can make manoeuvrability challenging.
  • Stability 4.5/5
  • Depending on the type of support layer in place can have an impact on stability, edge to edge support and roll together prevention. Pocket springs of a firmer tension will have better stability than open coil soft tension, for example.

Ease of Use

  • Turning handles 5/5
  • Mattresses typically need to be rotated frequently and having turning handles can be massively beneficial, particularly in larger sizes which can become fairly heavy.

Odour

  • Initial Odour 4.5/5
  • Materials in mattresses, particularly memory foam and rolled bed-in-a-box mattresses can have an initial odour, this is typically short term and reduces considerably within 24 hours.
  • Long Standing Odour 5/5
  • Certain materials inside different mattresses can produce a small odour. Typically this is short term rather than long standing but there are minor exceptions.

Brand Rating

  • Overall Brand Rating 4.5/5
  • This is based on community driven customer reviews tied to product reviews and grouped together at a brand level to produce a score.
*Assumes average weight. Suitability is dependent on body type, so check your SnoozeScore above for a more tailored guide.
Radar analysis
of the Hypnos Cawthorne Luxury Mattress
Brand: Hypnos
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Customer Sentiment: Good
Guarantee: Excellent
Radar Analysis looks at the product, brand and retailer against base norms established within the industry and determines where the product sits by way of established performance metrics.

Owners, by the numbers

Counted from 67 owner reviews of this mattress on retailer sites.

67%gave it 5 stars45 of 67 reviews
10%gave it 1 or 2 stars7 of 67 reviews
Middle thirdon price, at £488 (Single)99 of 264 other pocket spring mattresses cost less today

Firmness against the label (medium-firm)

What owners saidThis mattressAll medium-firm
Felt firmer than expected0%0 of 670.4%
Felt softer than expected1.5%1 of 670.4%
Too firm0%0 of 671.0%
Too soft1.5%1 of 670.7%

“All medium-firm” is 54,345 reviews of 139 mattresses labelled medium-firm. The phrases counted are in the firmness report.

Counted from reviews published on retailer listings. Each review counts once, even where a retailer shows it on several listings, and reviews left on WantMattress are not included. The method is set out in the reliability report.

Reviews

Pick a star rating to see only those reviews.

4.4owner rating out of 567 reviews
Derek
Verified by Mattress Online
5
Took a few days to adjust to the "medium to firm" mattress - perhaps because the old one was past its best! But now I find it very comfortable and supportive. Could also feel the 'buttons' initially (though covered in wool) but again just getting used to it. Would buy the same again (in fact I probably will for the second bedroom!).
Stuart
Verified by Mattress Online
5
The mattress is perfect, it is exactly as described and has been great, I was pleased with how well it was packaged and delivered but wanted to wait before leaving a review until we had slept on it for a month.
Sophia
Verified by Mattress Online
5
Like sleeping in an upmarket hotel every night, it's comfortable and I don't want to get out of bed, after a few months I can confirm it's the best sleep I've ever had. Highly recommended.
Nicholas
Verified by Mattress Online
2
The mattress itself feels great the only issue is the mattress is starting to get grooves, I'd expect this after a number of years but this is after a few months!
Anthony
Verified by Mattress Online
5
Great value for a premium brand. You cannot beat a traditional mattress, there is a reason they put in all those layers and springs.
Anonymous
Verified by Mattress Online
4
Good Mattress for the value time will tell if its worth it. Unfortunately packaging ripped which results with small stain.
Maureen
Verified by Mattress Online
5
The mattress is very comfortable.being elderly with back problems we chose medium instead of firm this time.
Anonymous
Verified by Mattress Online
4
Nice mattress, I really should have gone for the firmer mattress, but still a quality mattress.
kevin
Verified by Mattress Online
5
I have used hypnos mattresses before they are very good. I sleep alot better now thank you .
JASON
Verified by Mattress Online
5
So far the mattress has lived up to what you'd expect from a Premier British manufacturer
Lesley
Verified by Mattress Online
5
Very comfortable. Just the right balance of firmer than a medium but softer than a firm.
Anonymous
Verified by Mattress Online
5
Very nice matress with great support and comfort just the right amount of firmness.
Andrea
Verified by Mattress Online
5
The most comfortable mattress I have ever slept on. A good night sleep every night
Beth
Verified by Mattress Online
3
Supposed to be medium firm but more like medium
Anonymous
Verified by Mattress Online
4
Rated medium/firm to it seem more toward firm
Susan
Verified by Mattress Online
5
Comfortable , well made reasonably pricing
Anonymous
Verified by Mattress Online
5
Its extremely good and very comfortable.
John
Verified by Mattress Online
5
The mattress went beyond expectations.
Anonymous
Verified by Mattress Online
4
Yes all ok. Just the right one for us
Anonymous
Verified by Mattress Online
5
Comfortable, if feels qualitative.
Maz
Verified by Mattress Online
5
Great product as advertised
Anonymous
Verified by Mattress Online
4
Can always be improved upon
Tru
Verified by Mattress Online
2
The word luxury implies high quality and sumptuous comfort. Whilst I would say the quality is good, I can't say it offers sumptuous comfort. It's rated medium/firm but doesn't have much give when you're lying on it, and the wadding doesn't have much in the way of softness and padding to it to help give the firm springs much yield. The sides are quite squishy when you sit down, and the overall feel is less than luxury. Feels like it needs a topper to up the comfort factor. Disappointing and am in the process of exchanging.
Jason
Verified by Mattress Online
1
I'm very disappointed with the mattress, it doesn't seem very good quality, I ordered a medium firm and its more like a soft, the edges are very soft, if you lay too near the edge you roll towards the edge, very poor quality, wish I kept my old mattress. The delivery was disgusting as I paid to have it put in the room but delivery person said it would not fit up the stairs and left it in the hall, I had to pay someone else (as I had just had an operation on my shoulder) to take it upstairs and on to the bed base.
Lisa
Verified by Mattress Online
2
Too soft despite saying it was medium to firm. The soft edging kept giving way as I got into bed. It was also a 'No turn' mattress which meant it seemed less stable and thin. Also, because I chose to return the mattress I missed out on a 10% and 20% discount. I chose it because I liked Hypnos mattresses but their quality seems to have deteriorated.
Derek
Verified by Mattress Online
5
Took a few days to adjust to the 'medium to firm' mattress - perhaps because the old one was past its best! But now I find it very comfortable and supportive. Could also feel the 'buttons' initially (though covered in wool) but again just getting used to it. Would buy the same again (in fact I probably will for the second bedroom!).
Paul
Verified by Mattress Online
5
After 4 weeks use there has been a noticeable improvement in my sleep quality & reduced almost no back pain first thing in the morning. Delivery was advised, on time & efficient despite significant localised flooding on my delivery day (driver had to take 4 diversions & still arrived in the time slot). Excellent service all round.
Ceri
Verified by Mattress Online
4
Firm but well padded. Overall very stable as regards feeling another sleeper moving around but there is one particular move my husband makes when he is near his edge of the mattress that gives a weird double bounce on my side.
Selina
Verified by Mattress Online
5
Had this mattress for a little while now and it is very comfortable. It has relieved the constant back ache I had and I sleep much better as does my husband. I would definitely recommend.
Nicholas
Verified by Mattress Online
2
The mattress itself feels great the only issue is the mattress is starting to get grooves, I'd expect this after a number of years but this is after a few months!
Jane
Verified by Mattress Online
5
The mattress is very comfortable and the delivery (which included taking away the old mattress), was extremely efficient and not at all disruptive,
Ffion
Verified by Mattress Online
5
Mattress is amazing, it's like sleeping in a luxury hotel each night Delivery drivers were excellent too, friendly and super helpful and efficient
Dave
Verified by Mattress Online
5
So far it had been a excellent buy. Our sleep quality has improved. I sleep on the edge of the bed and I really feel supported when I sleep.
Chris
Verified by Mattress Online
5
Outstanding product by Hypnos and as for mattress online a cracking level of service and exceptionally polite staff I can highly recommend
Margaret
Verified by Mattress Online
5
An extremely comfortable mattress with just the right amount of support, not too firm or soft. Our sleep quality has improved greatly!
Nigel
Verified by Mattress Online
4
Comfy mattress but feels very warm hence only 4 star. Due to it being warm the mattress was returned under a 60 night trial
Katarzyna
Verified by Mattress Online
5
A very comfortable and high-quality mattress, worth the price, highly recommended. It feels great to the touch. Thank you.
Chris
Verified by Mattress Online
5
A lovely mattress rather firm but I find that better for my back only used for around 4 weeks but so far so good
Lawrence
Verified by Mattress Online
4
So far the mattress has been fine and has made me realise that i should have changed my old mattress years ago.
Mrs Malin
Verified by Mattress Online
5
Nice and firm no sagging even at the edges. Bought for bed sharing with a baby and also helped back pain
Ron
Verified by Mattress Online
5
It replaced a Hypnos Premier Inn Mattress and is as good as this was when new. Very comfortable!
Jenny
Verified by Mattress Online
4
Mattress ok just not as firm as I'd hoped. Delivery 100% and the men were helpful and friendly.
Beryl
Verified by Mattress Online
5
I love the mattress is firm and it's very comfortable to lay on iwouldreccomend it to buy
Maggie
Verified by Mattress Online
5
Great price. Easy to order & quick delivery. Good quality mattress I was after. Love it!
Ann
Verified by Mattress Online
4
This mattress was for a spare room. It does the job and is very comfortable
John
Verified by Mattress Online
4
I have only had the mattress a few weeks seems ok no complaints so far
Nicola
Verified by Mattress Online
5
Well made and really comfortable, I'd happily recommend this mattress
Missc
Verified by Mattress Online
1
After 9 months of using this mattress I'm unlucky wouldn't recommend
Christine
Verified by Mattress Online
5
Excellent Value Helps my painful lower back Nice firm comfortable
Frances
Verified by Mattress Online
4
Really lovely matress but more comfortable with a topper
Barbara
Verified by Mattress Online
5
Sleeping so much better than with my previous mattress.
Galina
Verified by Mattress Online
2
would not describe it as medium-firm. Just doft
Mrs Williams
Verified by Mattress Online
5
Not too firm but supportive. Very comfortable
Carol
Verified by Mattress Online
5
Very comfortable glad I made the purchase
Steven
Verified by Mattress Online
4
Mattress comfortable. Reasonably firm.
David
Verified by Mattress Online
5
Very comfortable. easy to move about.
David
Verified by Mattress Online
5
Offers firm/medium support as ordered
Kerry
Verified by Mattress Online
5
Just the most lovely mattress ever!!!
Clare
Verified by Mattress Online
5
Firmness just right very comfortable
Ian
Verified by Mattress Online
5
Very comfortable Good instructions
Clare
Verified by Mattress Online
5
It is extremely comfortable sleep
Joseph
Verified by Mattress Online
5
Excellent mattress no complaints
Sarah
Verified by Mattress Online
5
Love it it's our second hypnos
Linda
Verified by Mattress Online
5
It's **** a comfy mattress.
Bradley
Verified by Mattress Online
5
Excellent mattress for Me.
Leonard
Verified by Mattress Online
4
Needs a topper for comfort
Wendy
Verified by Mattress Online
5
...

Questions and answers about the Hypnos Cawthorne Luxury Mattress

Common questions answered by our team first, then questions shoppers asked the retailer, with the retailer’s own answers.

Image of the post author
Common question
How is the edge support of this mattress?

Answer: The mattress provides durable edge-to-edge support. It's designed with a reinforced mattress edge which offers a maximised sleeping surface for a more secure sleep. You can comfortably sit and lay right to the very edge without any 'roll-off' sensation.
Image of the post author
Common question
Does the mattress help in maintaining a cool sleeping environment?

Answer: Yes, the mattress comes with air vents which enhance the circulation of air throughout the mattress. This can help in keeping the sleeping environment fresh by preventing the build-up of moisture.
Image of the post author
Common question
Is this mattress suitable to be turned over in order to extend its life?

Answer: No, there's no need for you to turn the mattress. It's single-sided, simply rotating the mattress every few months will suffice.

Videos about this mattress

Hand picked video that relates to the specifications of The Hypnos Cawthorne Luxury Mattress

What are Pocket Springs?
What are Pocket Springs?
By BedStar
What is Hypoallergenic?
What is Hypoallergenic?
By Karen Kelley Perkins
Mattress Online
Mattress Online
By Mattress Online

Guides this mattress is featured in

This mattress is listed in 7 of our guides because its build meets what each guide looks for. Each card says what that is.

  • Back pain guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses at medium-firm tension with no pillow top, which keep the spine level.

    Includes comment from 3 registered clinicians
    Read the guide
  • Neck pain guide

    Why it’s featured

    This guide lists pocket-sprung and hybrid mattresses at medium-firm tension, which keep the neck in line with the spine.

    Includes comment from a registered clinician
    Read the guide
  • Osteoporosis guide

    Why it’s featured

    This guide lists medium-firm pocket-sprung and hybrid mattresses without memory foam, which are easier to turn on.

    Includes comment from a registered clinician
    Read the guide
  • Anti-allergy guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses that the retailer sells as anti-allergy or hypoallergenic.

    Includes comment from a registered clinician
    Read the guide
  • Front sleepers guide

    Why it’s featured

    This guide lists medium-firm and firmer mattresses on pocket springs or latex, with no memory foam or pillow top to sink into.

    Includes comment from a registered clinician
    Read the guide
  • Older sleepers guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses with a springy top rather than memory foam, which are easier to turn on and get up from.

    Includes comment from a registered clinician
    Read the guide
  • Back sleepers guide

    Why it’s featured

    This guide lists medium-firm pocket-sprung and hybrid mattresses with no memory foam top and no pillow top, which keep the spine level.

    Read the guide

Clinicians comment on the condition in each guide, not on individual mattresses.

Sources for this review

  • Our assessmentConstruction, materials and firmness judged by our team, from over 10 years in the mattress industry
  • Specification24 points from Mattress Online's listing
  • Owner reviews67 analysed, 67 written ones checked across 3 reliability topics
  • Buyer questions4 read
  • Price history370 checks since February 2023
  • BenchmarkCompared with 364 other pocket-sprung mattresses we track
  • Site-wideOur price tracker has logged 1,344,243 retailer prices since June 2019

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