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Horizon Eclipse 3000 Pocket Memory Mattress
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Horizon Eclipse 3000 Pocket Memory Mattress

FirmnessMedium Firm

In shortIf you sleep on your back or front, I'd put this medium firm mattress on your list: pocket springs support you while memory foam softens the feel. If you sleep hot or prefer a softer bed, I'd look elsewhere. Read the review

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

What our reviewers found

Pros

  • 2000 pocket springs with an extra layer of 1000 mini springs, plus a layer of Bamboo memory foam.
  • Owners mostly find it comfortable, and a few mention good value: one summed it up as "Extremely comfortable, great value."
  • Several owners praise the knowledgeable showroom staff and the prompt delivery.
  • Comes with a 5-year guarantee.

Cons

  • Depending on individual preferences, some sleepers may find the memory foam layer of the Horizon Eclipse 3000 too heat-conductive, potentially leading to an uncomfortably warm sleeping environment.
  • While the medium-firm tension should accommodate most sleepers, those with lighter body weights or preferring softer beds may find the mattress too firm, leading to discomfort or pressure point formation.
  • Despite the individual pocket springs designed to minimise motion transfer, sleepers extremely sensitive to their partner’s movement might still experience some level of disturbance due to the inherent bounce of spring mattresses.

The search for the perfect mattress can sometimes feel like looking for a needle in a haystack. There are countless options on the market, each with their own unique features and benefits, which can make it difficult to sift through the clutter and find the mattress that's truly right for you. However, during our diligent search for excellence in slumber comfort, we came across the Horizon Eclipse 3000 Pocket Memory Mattress, a top-rated pick for 2025 offered by Mattress Online. It's a pocket-sprung hybrid with a layer of Bamboo memory foam on top and a medium-firm rating, which is the kind of all-rounder we'd steer most people towards when they aren't sure what they want.

How we assessed it

Two layers of pocket springs under memory foam should suit couples. Each spring sits in its own fabric pocket and the foam on top absorbs movement, so a partner turning over shouldn't disturb your side of the bed. The memory foam should mould around your hips and shoulders and take pressure off them, which fits what owners report: one who was sceptical about memory foam called it "THE most comfortable mattress EVER" and said they had "no aches and pains". Don't read medium-firm as hard, though, because one owner found theirs too soft. Memory foam holds warmth, so we'd expect this to sleep warmer than a sprung mattress with no foam in it.

Design and Features

At the heart of the Horizon Eclipse 3000 is a smartly-engineered spring structure, combining 2000 pocket springs and an additional layer of 1000 mini springs. These individual pocket springs designed to align your spine optimally while providing you with comfort and targeted pressure-point relief. We were impressed by the inclusion of a layer of sumptuously soft Bamboo memory foam, which offers a comforting sleep surface that adapts to your body contours.
The mattress has a medium-firm tension, striking a balance between plushness and support, expected to accommodate different sleeping positions adequately. It's encased in a sturdy foam border which not only aids in edge support, but also in limiting excessive sagging over time. A depth of 27 cm and a removable quilted memory foam cover, which can be dry-cleaned, attribute practicality to the design.
Certainly, the Horizon Eclipse has admirable features, but our experts were a little sceptical about the actual cooling efficiency of the Bamboo cover. Memory foam is known for trapping heat, and while the bamboo element is a thoughtful addition, its real benefits in maintaining a cool sleep environment is up for debate.

Mattress Comfort

The Horizon Eclipse 3000 positions itself as a medium-firm mattress, meaning it strikes a balance between plush comfort and solid, reliable support. On paper the memory foam and soft fibre should give first, with the pocket springs firming up underneath as your weight goes on.
Owners mostly agree that it's comfortable, though the feel doesn't suit everyone.

Suitability

The Horizon Eclipse 3000's medium firmness is apt for both side and back sleepers of average weight. The mattress's support and conforming ability should comfortably cushion a side sleeper's shoulders and hips, while providing a back sleeper the necessary spinal support. However, side sleepers with an hourglass figure might need to consider a slightly softer model to ensure comfortable sinkage.
The 3000 pocket springs combined with a layer of adaptable memory foam suggest that this mattress could be a favourable choice for individuals suffering from joint pain or back discomfort. The potential for motion isolation further makes the mattress a feasible choice for couples.

What Customers Thought

Owners mostly say it's comfortable. One wrote: "I sleep right through and no night sweats either !" Another bought it for their mum, who has arthritis, and said it "made it so she sleeps through the night". Several owners also praise the value, and the service gets mentions for knowledgeable showroom staff and prompt delivery.
Not everyone gets on with it. One owner found it too soft and wrote "Another marshmallow! Really annoyed.", and another said "The edges are not square so you tend to roll to the edge." One owner who likes it said it took a few weeks to adjust to the new mattress.

The Verdict

The Horizon Eclipse 3000 Pocket Memory Mattress certainly presents a compelling case, armed with its clever micro-spring design, Bamboo memory foam layer, optimum spinal alignment, and sturdy edge support. Most owners are happy with it.
The memory foam layer does add a sufficient level of plushness to the feel of the mattress, but questions about its heating properties remain. For warmer sleepers, this could be a potential point of concern.
Overall, with a 5-year guarantee and comparatively lower price point in the high-spec market, the Horizon Eclipse 3000 seems to offer a fair balance of value, comfortable sleep experience, and durable quality. It ensures restful sleep, suiting the needs of most sleeping positions, with the potential to alleviate long-standing discomforts. Provided the warmth of memory foam doesn't deter you, we'd suggest the Horizon Eclipse 3000 is a worthy contender to consider in the pursuit of your perfect mattress.

How we reviewed the Horizon Eclipse 3000 Pocket Memory Mattress

10+ years in the mattress industry38-point spec checkBenchmarked against 346 pocket-sprung mattresses3 buyer questions read70 price checks since Oct 2024

Drawing on over 10 years in the mattress industry, our team judged the construction, materials and firmness of the Horizon Eclipse 3000 Pocket Memory Mattress point by point from its 38-point specification and Mattress Online's listing, and benchmarked it against 346 other pocket-sprung mattresses we track. We have checked its price 70 times since October 2024. How we review


Corrections

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

11 October 2026
We said this mattress had 1000 pocket springs and 2000 mini springs. It has 2000 pocket springs and 1000 mini springs.

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Horizon Eclipse 3000 Pocket Memory Mattress may feel.

SnoozeScore

Still not sure if the Horizon Eclipse 3000 Pocket Memory 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 £252 (Single) at Mattress Online

Choose your size
£492No change Read 28 Oct 2026 · excludes delivery
Shop King at Mattress Online

King price, tracked since 26 Oct

We have read the King at Mattress Online 3 times since 26 Oct 2026, and it has been £492 each time.

SizeLatest readingReadLowest readingOnTracking since
Single£25228 Oct 2026£25226 Oct 202626 Oct 2026
Small Double£38828 Oct 2026£38826 Oct 202626 Oct 2026
Double£43228 Oct 2026£43226 Oct 202626 Oct 2026
King£49228 Oct 2026£49226 Oct 202626 Oct 2026
Super King£58528 Oct 2026£58526 Oct 202626 Oct 2026

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

How it scores
of the Horizon Eclipse 3000 Pocket Memory Mattress
Scored from the build: how this construction usually performs, compared with mattresses of a similar type and price.
Scored from the build: how this construction usually performs, compared with mattresses of a similar type and price.

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 3.5/5
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress 3.5/5
  • 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.

Odour

  • Initial Odour 4/5
  • 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 Horizon Eclipse 3000 Pocket Memory Mattress
Brand: Horizon
Retailer: Mattress Online
Delivery Time: Excellent
Delivery Charge: Excellent
Customer Sentiment: Good
Guarantee: Good
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.

Reviews

Pick a star rating to see only those reviews.

4.3owner rating out of 516 reviews
Bilton
Verified by Mattress Online
5
Fast delivery and great salesmen cant recommended more. Very pleasant experience
A Gillies
Verified by Mattress Online
5
Just what we needed for a great night's sleep
Deborah
Verified by Mattress Online
5
Was skeptical buying memory foam, buy after a weekend Glamping on a very good quality foam mattress I researched and this had excellent reviews. I've also had had 2 months restless sleep. But wow!! This is THE most comfortable mattress EVER. I sleep right through and no night sweats either ! And no aches and pains . Thank you
Lucy
Verified by Mattress Online
5
This is the best matress I have ever purchased. It's so comfortable and smooth, I can turn in my sleep and have a comfortable experience. My sleep has really improved since purchasing this matress. It's worth the money I paid and I would definitely recommend this product to anyone who wants a good night's sleep.
Green
Verified by Mattress Online
5
The staff member in store was amazing and not pushy makibg you want to purchase very knowledgeable. The delivery for efficient and customer focused.Exactly what was needed ,perfect for my mums arthritis made it so she sleeps through the night, would recommend to anyone and everyone.
D Taylor
Verified by Mattress Online
5
Visited the Doncaster Showroom, asked a few questions, got good answers, tried a memory foam mattress out. Put a deposit on it and collected it rather than having delivery which was free ( it's for our new purchase in Northumberland).
Helen
Verified by Mattress Online
4
So far so good. It has taken us a few weeks to adjust to having a new mattress. The mattress is comfortable and was delivered promptly.
Guest
Verified by Mattress Online
5
Bought to replace our existing mattress as the wife now has a back problem. Early days yet but so far it's good.
Michael
Verified by Mattress Online
5
Fantastic product and a great price and excellent service. Well pleased
Joy
Verified by Mattress Online
4
The edges are not square so you tend to roll to the edge.
Amanda
Verified by Mattress Online
5
Fabulous luxoury mattress , great value price
Lois
Verified by Mattress Online
4
Sorry, I fell asleep What was the question
Ian
Verified by Mattress Online
5
Lovely comfort and a joy to go to bed
Mr Goncalves
Verified by Mattress Online
1
Another marshmallow! Really annoyed.
Chris
Verified by Mattress Online
5
Extremely comfortable, great value.
Peter
Verified by Mattress Online
1
the mattress is what we wanted

Questions about the Horizon Eclipse 3000 Pocket Memory Mattress

Have a question?

Nobody has asked about this one yet. Ask about the size, the feel or whether it suits how you sleep.

Videos about this mattress

Hand picked video that relates to the specifications of The Horizon Eclipse 3000 Pocket Memory Mattress

The Pros and Cons of Memory Foam
The Pros and Cons of Memory Foam
By Mattress Makers
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 6 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
  • Sciatica guide

    Why it’s featured

    This guide lists medium-firm mattresses with a comfort layer over pocket springs, so the back is supported without lying on a plank.

    Includes comment from 2 registered clinicians
    Read the guide
  • Kyphosis guide

    Why it’s featured

    This guide lists medium and medium-firm pocket-sprung or hybrid mattresses with a memory foam or latex top that gives at the shoulders.

    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
  • Cold sleepers guide

    Why it’s featured

    This guide lists mattresses with memory foam or wool in them, which hold warmth.

    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
  • Specification38 points from Mattress Online's listing
  • Buyer questions3 read
  • Price history70 checks since October 2024
  • BenchmarkCompared with 346 other pocket-sprung mattresses we track
  • Site-wideOur price tracker has logged 1,314,947 retailer prices since June 2019

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