M&S Collection 1500 Pocket Spring Firm Mattress

M&S Collection 1500 Pocket Spring Firm Mattress

pocket spring mattresses anti allergy mattresses Firm mattresses
£499.00
sleeping cat
20p per sleep based on average mattress lifespan
Single
Small Double
Double
King Size
Super King
With Divan Bed Set
With Ottoman Bed Set
*We work with retailers to secure the best deals, outgoing links are monetised

Pros & Cons

Here we collect tests, guides and product reviews so that you can create a picture of what others think about the product. This analysis and review is based on my experience and a decade of industry insight.

  • Firm support ideal for back pain sufferers
  • Reduces motion transfer for undisturbed sleep
  • Breathable wool padding for temperature regulation
  • Anti-allergy cover for a healthier sleep environment
  • 10-year guarantee for peace of mind
  • Firmness may not suit all preferences
  • Tufts may be uncomfortable for some users
  • Limited stock availability in certain sizes

Read why our sleep experts loved it ›

Who is it best for? powered by SnoozeScore

In our experience, the materials and construction that go into this product can make it suitable for the following people.

Back sleeping and stomach sleeper icon
For back and stomach sleepers
Additional support helps these positions
inhaler icon
Good for allergies & asthma
This mattress has anti-allergen properties
Reduced partner disturbance icon
Reduced partner disturbance
Pocket springs work independently to one another.
Roll together prevention
Roll together prevention
Independent springs help prevent roll together.
Acid reflux icon
Helps with acid reflux
When paired with a compatible adjustable bed.
Toss and turn icon
Good for those who toss and turn
Materials like memory foam can restrict movement.
snooze score logo Still not sure if the M&S Collection 1500 Pocket Spring Firm Mattress is suitable for you? Answer 4 simple questions with our quiz Take Suitability Quiz

Why our sleep experts loved it

Disclaimer: I haven’t actually flopped onto this mattress (no in-store naps were involved as it is online only). Instead, think of this as an inspection based on specifications, construction and general sleep science. As a self-proclaimed sleep expert, I’ll decipher how the M&S Collection 1500 Pocket Spring Firm Mattress should perform in your bedroom.

Comfort and Feel

This mattress firmly earns its “firm” label. It feels more like a sturdy board-like comfort than a gentle cocoon, albeit by design specifically tailored to back sleepers. With about 27cm of thickness and layers of soft wool and fibre padding, you won’t sink deeply into it - you’ll notice a solid, springy surface. The pure new wool top layer adds just a touch of plushness, but overall the sensation is one of reliable support and subtle bounce. Think of it as a robust cloud: it flexes under your weight, but doesn’t collapse. In plain English, if you prefer a mattress that feels like sinking into marshmallows, this one will likely feel too firm. It’s all about firm support over deep sink.

Support and Spinal Alignment

Support is a core strength of pocket-sprung mattresses, and this one is no exception. With roughly 1500 individually wrapped springs (the exact number depends on mattress size), each part of your body is greeted by its own coil. That means your shoulders, hips and lower back each get tailored support. For back sleepers in particular, this is gold: the mattress helps keep the spine aligned by holding up the lumbar region and letting the upper back settle gently. In practice, your weight is distributed across all those springs, so every area of your body is actively supported. You should feel balanced support from head to toe, keeping your spine in a healthy posture all night long.

Suitable Sleeping Positions

  • Side Sleepers: Side sleepers usually need some give at the shoulders and hips. This mattress leans strongly toward firmness, so it won’t hug those curves very closely. A lightweight side sleeper might feel pressure on the shoulder or hip because you won’t sink in much. In other words, you’ll lie “on” the mattress more than “in” it. If you’re broader or heavier, the firmness could still feel rigid. You might want extra cushioning (like a thin topper or a soft pillow under the hip) to relieve that pressure.
  • Back Sleepers: Back sleepers are likely to be happy here. A firm surface keeps the spine from sagging, and this bed’s sturdy springs and wool padding should keep your lower back lifted and your torso well supported. You’ll likely feel a gentle lift in the lumbar area, which helps maintain the natural S-curve of your spine. Basically, your back stays straight in the comfortable way, avoiding that hollow-back morning ache that softer beds can cause.
  • Stomach Sleepers: Front sleepers generally need extra firmness to prevent the hips from sinking. This model’s firm build should serve that need. It holds your hips high and keeps your pelvis roughly level with your shoulders. If you’re an average build, your body will lie fairly flat, helping your spine stay straight rather than bending downward. Very heavy or broad-chested stomach sleepers may still notice a tiny bit of give at the chest, but this mattress will feel significantly firmer than most soft alternatives.

Suitable Body Types

  • Lightweight Sleepers (Under ~60kg): On the leaner side, you’ll feel very little sink here. It might even feel a bit like sleeping on a slightly soft bench. The wool layer does cushion a bit, but in general your body will stay near the surface. If you prefer feeling hugged by the mattress, you may miss that softness. In short, the lighter you are, the firmer this bed will feel.
  • Average-weight Sleepers (~60-90kg): This is the sweet spot. You’re heavy enough to compress those springs just right: you’ll enjoy a mix of gentle give from the wool and a firm pushback from the coils. You’ll probably find that you settle slightly into the surface while feeling solid support underneath. It strikes a good balance of softness and stability for medium-weight bodies.
  • Heavy Sleepers (Over ~90kg): Heavy sleepers need a mattress with high support, and the 1500 springs deliver. Each spring only takes a portion of your weight, spreading the pressure. With firm springs and substantial construction, you’re unlikely to bottom out quickly. The bed should feel very supportive and hold you up well. Over time, any mattress compresses a bit under heavy use, but the resilience of wool and the dense spring unit suggest this one will stay supportive for many years.

Motion Isolation

Because each spring lives in its own fabric pocket, motion tends to stay where it happens. Picture each spring as a little island (this is legit a terrible analogy and I hated it the moment I wrote it): if one island bounces, the neighbouring islands barely feel it. Practically speaking, if your partner shifts, gets up, or tosses and turns, you’re less likely to be disturbed on your side. The firmness also means you won’t get wave-like ripples; it’s not floaty like foam, nor bouncy like a trampoline. It’s a balanced mix: responsive yet stabilizing, so each person’s movements stay mostly in place.

Temperature Regulation and Breathability

This mattress has built-in cooling features. The surface layer is pure new wool, a natural fibre that breathes and wicks moisture. Wool can actually keep you cool in summer by pulling sweat away from your body, and warm in winter by trapping insulating air - it’s naturally thermoregulating. Below the wool, the pocket-spring core lets air flow freely, unlike solid foam layers that can trap heat. Additionally, four small vent holes on the mattress sides (one on each side) let warm air escape from the interior. All together, these features help prevent the mattress from feeling too hot during the night.

Materials and Construction

  • Springs: The core uses roughly 1500 pocketed springs (the count varies by mattress size). Each spring is encased in its own fabric sleeve, allowing it to compress independently. This classic design provides targeted support (responding to your body’s contours) and also reduces motion transfer. While M&S doesn’t list the spring gauge (thickness), the firmness and heft of the mattress suggest they’re on the sturdy side rather than very soft.
  • Upholstery Layers: Above the springs are layers of pure new wool and a premium white fibre. Wool is a resilient, natural material known for softness and breathability, and it wicks moisture well. The white fibre adds cushioning and loft. These layers are quilted into the mattress surface and held in place by three rows of side stitching (visible on the mattress edge). In practice, they give the mattress a bit of immediate cushioning under your body without making it feel spongy. They also aid temperature regulation by wicking away moisture.
  • Cover: The mattress cover is an ActiPro anti-allergy fabric with an antibacterial finish. This means the surface resists dust mites, bacteria and odours, which is great for allergy sufferers or anyone wanting a clean sleep environment. The cover is quilted and smooth to the touch, and it’s not removable (unlike a pillow protector). Instead, its special treatment acts like a built-in shield against allergens. You’d keep it fresh much like any mattress - occasional vacuuming or spot-cleaning should do the trick.
  • Handles and Vents: On the long sides there are four sturdy handles (two per side). These cloth loops are practical for moving or rotating the mattress. Around the sides are also four small metal vents (one on each side). These allow air to circulate through the mattress core, enhancing breathability. You’ll also notice the horizontal stitching lines on the mattress edge - these tuft-like stitches keep the internal layers from shifting, helping the mattress maintain its shape.
  • Build Quality: Made in the UK, this mattress has a solid build. It’s heavy (around 26kg for a double, 31kg for a king), reflecting its dense construction. It comes with a 10-year guarantee, which suggests M&S expects it to last under normal use. Importantly, it’s a “no-flip” design: the quilted top is the sleeping surface, and the bottom is plain. To keep wear even, M&S advises rotating it periodically (they suggest weekly for the first 3 months, then about every 3 months thereafter) rather than flipping.

Durability and Long-term Use

This mattress is built to last. Pocket springs and wool are both long-wearing materials. The springs provide consistent support that resists sagging, and the wool/fibre layers will slowly compress but hold their loft over years. The sturdy edge stitching keeps the internal layers from bunching up. The 10-year warranty is impressive for a mid-range bed, showing confidence in its lifespan. To maximize longevity, just follow the rotation schedule (rotate weekly at first, then quarterly thereafter) so the wear spreads evenly.

Ease of Setup and Use

Setting up this mattress is straightforward. It should arrive in packaging, and you simply unpack it and place it on your bed base. It’s heavy, so use the handles (and maybe a helper) when lifting it. Once in place, there’s no assembly needed - no parts or instructions to fuss with. As noted, you don’t flip it, just rotate occasionally per the recommended schedule. After that, using the bed is just like any normal mattress - no break-in or special steps. Just make sure your foundation is sturdy and level, and then it’s all set up without any fuss.

Value for Money

At about £499 for a double and £699 for a king, this mattress sits in the mid-range market. Given what you get, it seems like solid value. You’re paying for 1500 pocket springs, natural wool upholstery, an anti-allergy cover, and a lengthy 10-year warranty - features that often cost extra on higher-end mattresses. M&S’s quality control means you’re getting reliable construction rather than a budget bargain. It’s not the cheapest bed out there, but it also avoids ultra-luxury price tags. In practical terms, it’s a good mid-range deal: you get many high-end features for a sensible price.

Who Is This Mattress Ideal For?

In summary, the M&S 1500 Pocket Spring Firm Mattress is ideal for sleepers who appreciate firm, supportive surfaces. Back sleepers and most stomach sleepers will likely find it keeps their spines aligned and hips supported. It’s also well-suited for people with larger or heavier builds, since the high spring count provides ample support. The breathable wool and anti-allergy cover make it a good pick for allergy sufferers, and couples can appreciate that one person’s movements are mostly independent of the other.

On the other hand, if you’re a lightweight side sleeper or someone who loves sinking into a plush, cloud-like bed, this might not be the one for you. It won’t give you much “sink” under hips and shoulders, which can be a drawback if that’s what you crave. In essence, this is a no-nonsense, firm mattress for anyone who loves solid support - not a soft, enveloping hug. Consider your sleeping style: if firm comfort is your priority, this mattress should serve you well; if you prefer softness, you might want to look elsewhere.

Why you can trust WantMattress We spend hours testing (and/or researching) every product or service we review, so you can be sure you’re buying the best. Find out more about how we test.

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the M&S Collection 1500 Pocket Spring Firm Mattress may feel.

weight description image

Price History

The price graph displays the lowest price over time excluding shipping.

Alternative products with similar specifications

We have handpicked some alternate options that should perform equally well that are worthy of consideration if you are interested in the M&S Collection 1500 Pocket Spring Firm Mattress.

Quantitative Measurements KPI question mark
Of The M&S Collection 1500 Pocket Spring Firm Mattress
Here's how the product performs based on the materials and composition when compared to other products of similar price point. These measurements are produced using a combination of specification-heavy algorithmic data points and our own hands on experience.

Quantitative Measurements KPI question mark

Here's how the product performs based on the materials and composition when compared to other products of similar price point. These measurements are produced using a combination of specification-heavy algorithmic data points and our own hands on experience.

Suitability

*Assuming average weight, suitability will vary dependant on body type, use the quiz above for a more tailored guide.
  • Back Sleepers
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • Mattresses that feature breathable materials help promote airflow and keep you cool making for a more hygienic night's sleep.
  • Turning on mattress
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • 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
    ★★★★★
    ★★★★★
  • Certain materials inside different mattresses can produce a small odour. Typically this is short term rather than long standing but there are minor exceptions.

Questions and Answers About The M&S Collection 1500 Pocket Spring Firm Mattress

Prospective customers had the following questions about the product

Image of the post author
Orlab
How does the antibacterial finish work?

Answer: The antibacterial finish helps to keep the mattress fresh by combating allergens and odors. This is achieved through a special treatment applied to the mattress surface, making it ideal for those with allergies.
Image of the post author
Amanda Stokes
Does the mattress require flipping?

Answer: No, the mattress does not need flipping. However, it is recommended to rotate it once a week for the first three months, then every three months thereafter to ensure even distribution of fillings.
Image of the post author
LandB
What sizes are available for this mattress?

Answer: The mattress is available in Single (3 ft), Small Double (4 ft), Double (4 ft 6), and King Size (5 ft). However, availability may vary, and some sizes may be out of stock.
Image of the post author
Joe92
Is this mattress suitable for people with back pain?

Answer: Yes, the firm support offered by the pocket springs can be beneficial for individuals with back pain, as it helps maintain proper spinal alignment.
Image of the post author
tepot
What is the depth of the mattress?

Answer: The mattress has a depth of 27 cm, providing ample support and comfort for a restful night's sleep.
Load more questions
Ask question
Of The M&S Collection 1500 Pocket Spring Firm Mattress
Brand: Marks and Spencer
Retailer: Marks and Spencer
Delivery Time: Good
Guarantee: Excellent

Calendar Icon Radar Analysis Radar Analysis Question Mark

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.

Product Relevant Videos

Hand picked video that relates to the specifications of The M&S Collection 1500 Pocket Spring Firm Mattress

Firm vs Soft Mattress
Firm vs Soft Mattress
By BedStar
What are Pocket Springs?
What are Pocket Springs?
By BedStar
What is Hypoallergenic?
What is Hypoallergenic?
By Karen Kelley Perkins

Customers Also Viewed View More From Marks and Spencer

Below are some other products from this retailer that are being viewed.

How we reviewed this product

At WantMattress, we adhere to stringent sourcing standards, drawing from peer-reviewed research, scholarly institutions, medical associations, and firsthand accounts and experience. We refrain from using tertiary sources. To understand how we maintain the accuracy and up-to-date nature of our content, please read further about how we test.

Latest Advice and Guides Your Questions Answered

Below are some of our best guides for learning more about the importance of sleep.

Everything You Need To Know About Mattress Fillings
Soft and Squishy Memory Foam
Simple Mattress Buying Guide
Decorative award symbol in corner
Mobile award badge

Introducing our WantMattress Better-Sleep Award

Looking for a new mattress? Our experts have tried and tested the best UK mattresses for back, side, and front sleepers from Eve, Emma, Origin, and more top brands.

Quantitative measurements icon
New Quantitative Measurements
Head-to-head comparison icon
Radar Analysis Head to Head
Suitable for different sleeper types icon
Who This Mattress Will Suit
Sleep experts' approval icon
Why our sleep experts loved it
VS Product Comparison
Product Added