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TEMPUR Pro Air SmartCool™ Firm 21cm Mattress
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TEMPUR Pro Air SmartCool™ Firm 21cm Mattress

FirmnessFirm
ConstructionMemory foam
sleeping cat
45p per sleep based on average mattress lifespan

Searching for best deal
Reveal Offer Price and Go To Site *
100-night comfort guarantee at DreamsConditions
Remedy
An exchange, not a refund
When
Between 30 and 100 nights
Condition
Use a mattress protector from day one

Checked on Dreams' site, 10 October 2026. Full terms at Dreams

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

Available through multiple retailers

We work with our retail partners to secure the best deals. Click below and see if you can get a better price through WantMattress.

Dreams
Dreams
TEMPUR Pro Air SmartCool™ Firm 21cm Mattress
£1649.00
Tempur
Tempur
TEMPUR Pro Air SmartCool™ Firm Mattress
£0.00

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.

Testing team takeaways

To test the TEMPUR Pro Air SmartCool™ Firm 21cm Mattress we have people from our testing team take a closer look at the mattress and form their own opinions. Here is what they found.

I tried the TEMPUR Pro Air SmartCool Firm mattress on the shop floor at a Dreams store, lying on my back and side to see how its firm feel suited me. I usually prefer a medium feel, so I was pleasantly surprised by how comfortable it felt on my back, with really strong support. Turning onto my side, though, I noticed a little more resistance than I would have liked around my hip and shoulder, where I wanted more give. It also felt distinctly cool to lie on, which stood out to me as someone who tends to feel hot.


Tester Attributes: Combi sleeper66 kgUses blackout curtains
Rebecca’s scoresFull scores
  • Back sleeping4.5/5
  • Side sleeping2.5/5
  • Breathability4.5/5

What our reviewers found

Pros

  • The mattress offers a firm feel that ensures optimal body support.
  • Utilises TEMPUR® Advanced Material to enhance pressure relief, particularly for back and hips.
  • Absorbs motion, helping to reduce movements during sleep.
  • Includes the Pro® Air SmartCool™ cover, which efficiently transfers excess heat, contributing to a cooler sleeping experience.

Cons

  • Side sleepers may find the TEMPUR Pro Air SmartCool™ Firm Mattress uncomfortable due to its firm tension, which can cause discomfort to their shoulder and hip points.
  • Individuals with an hourglass figure may struggle to sleep comfortably on this mattress, as its firm nature doesn't offer the sinkage required for proper alignment and pressure relief.
  • Despite the Pro Air SmartCool™ cover, some heat-sensitive sleepers might still find this mattress too warm for their liking.
  • People who prefer a plush or cushioned surface may not find the firmness level of this TEMPUR mattress to be comfortable.
  • Customers who prefer a thicker mattress may be dissuaded by the streamlined 21cm depth of this model.

The power of a good night's sleep can't be overstated. It's the golden chain that ties health and our bodies together. Every aspect of our lives from our mood to our cognitive functioning to our overall well-being is impacted by the quality of our sleep. An investment in your sleeping comforts is, essentially, an investment in your health. Apart from a tranquil environment and some routine bedtime habits, a crucial element to this revitalising sleep is the mattress you sleep on. Choosing the ideal mattress isn't always a walk in the park. With a range of brands and types across different price ranges, the decision can be daunting. Enter the TEMPUR Pro Air SmartCool™ Firm Mattress, a divine escapade into restful nights and refreshing mornings. This piece furnishes you with an informative review of this premium memory foam mattress.

How We Tested

Our review is based on intensive in-person testing carried out in the store itself due to the constraints of our methodology, as opposed to at home. Unveiling the mattress, we keenly looked into the details, from its design and features to how comfortable it felt. We amassed a diverse collection of individual opinions, then translated them into an easy-to-understand verdict that ensures you get a clear understanding of this product.

Design and Features

The TEMPUR Pro Air SmartCool™ Firm Mattress is an ingenious mix of technology and comfort. Made with premium TEMPUR® memory foam, a product of NASA technology, you can bet on exceptional support especially with its firm comfort grade. This mattress has of the Pro Air SmartCool™ cover, exclusive to the TEMPUR brand, masterfully designed to transfer excess heat away for a cooler sleeping experience. With a sleek 21cm depth and a removable cover that's machine washable at 40 degrees, upkeep of the mattress becomes a breeze. It is important to note that this marvel is exclusively available at Dreams, underlining its uniqueness and superior design.

Mattress Comfort

Exemplary comfort is the standout feature of this mattress. Made with TEMPUR® Advanced Material, the mattress provides next-level pressure relief. This material is specially designed for better motion absorption, which translates to reduced movement and a faster drift into slumber. The Pro Air SmartCool™ cover amplifies the comfort by implementing cooling technology, effectively moving excess heat away from your body. With its firm tension, it becomes an invincible choice for back sleepers, as the mattress mechanisms work to alleviate aches and pains by realigning the spine, neck and hips and evening out body weight.

Suitability

This mattress is a gem for back sleepers and even stomach sleepers to an extent due to its firm comfort grade. It does an exceptional job of conforming gently to your body, giving optimal support that helps you sleep like a baby. However, if you are a side sleeper or have an hourglass figure, this mattress might not be the best option for you as the firm tension may cause unrest due to inadequate sinkage for your hip and shoulder along the support layer.

What Customers Thought

Owners mostly write about comfort and waking up with fewer aches. Back and hip relief comes up: "I used to have a lower back and hip problem but it keeps me aligned", one owner wrote, and another said "I used to have back pain the mattress has helped with the pain." Owners who mention the firm feel mostly like it. One called it "quite firm but you sink in enough to be comfortable", though one found it "not firm enough for me" and another thought it a bit too firm to sleep on.

Cooling is where the reviews split. One owner described the foam as "very comfortable and cooling once it sets", but others said the opposite: "not cooling at all", wrote one, and "very hot!! Not cool at all", wrote another. A couple of owners also say it sinks more in some places than others ("Sinks in middle and centre of the side", one wrote). One found the top cover slippery, so the sheets move around, and one otherwise happy owner added "It was very expensive though..."

The verdict

Our foray into the TEMPUR Pro Air SmartCool™ Firm Mattress paints a picture of an outstanding mattress. It has revolutionised the concept of sleep with its optimum comfort blended with sophisticated technology. Whether it's the superb body support courtesy of the premium memory foam or the cooling, refreshing feel from the SmartCool™ cover, this mattress turns your bedtime into a luxurious affair. If you're a certified back sleeper seeking an accompaniment for those peaceful nights, look no further than the TEMPUR Pro Air SmartCool™ Firm Mattress. It's a crowning investment for your sleep and, ultimately, your health.

How we reviewed the TEMPUR Pro Air SmartCool™ Firm 21cm Mattress

Tested in store · Dreams10+ years in the mattress industry25 owner reviews analysed183 price checks since Mar 20249 buyer questions read17-point spec check

Drawing on over 10 years in the mattress industry, our team assessed the construction, materials and firmness of the TEMPUR Pro Air SmartCool™ Firm 21cm Mattress, and our tester tried it in store at Dreams in June 2024, scoring it on 3 measures. We analysed all 25 owner reviews. We have checked its price 183 times since March 2024. How we review

How does it feel?

Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the TEMPUR Pro Air SmartCool™ Firm 21cm Mattress may feel.

SnoozeScore

Still not sure if the TEMPUR Pro Air SmartCool™ Firm 21cm 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 £1,149 (Small Single) at Dreams

Choose your size
£1,899High end of our 90-day readings Read 10 Nov 2026 · excludes delivery
Shop King at Dreams

Our latest King reading against the last 90 days

Low £1,599 (27 Oct)High £1,899 (29 Oct)

King price, tracked since 27 Oct

In the last 90 days the King at Dreams has read between £1,599 and £1,899.

SizeLatest readingReadLowest readingOnTracking since
Small Single£1,14910 Nov 2026£1,04927 Oct 202627 Oct 2026
Single£1,24910 Nov 2026£1,12427 Oct 202627 Oct 2026
Small Double£1,54910 Nov 2026£1,42427 Oct 202627 Oct 2026
Double£1,64910 Nov 2026£1,46227 Oct 202627 Oct 2026
King£1,89910 Nov 2026£1,59927 Oct 202627 Oct 2026
Super King£2,14910 Nov 2026£1,87427 Oct 202627 Oct 2026
Emperor£2,49910 Nov 2026£2,19927 Oct 202627 Oct 2026

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

How it scores
of the TEMPUR Pro Air SmartCool™ Firm 21cm Mattress
Scored by Rebecca Brown after testing it in store at Dreams, June 2024, then checked against owner reviews. Where the testing didn't cover a measure, it is scored from the build and owner reviews.
Scored by Rebecca Brown after testing it in store at Dreams, June 2024, then checked against owner reviews. Where the testing didn't cover a measure, it is scored from the build and owner reviews.

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 2.5/5
  • 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 4.5/5
  • 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.

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 TEMPUR Pro Air SmartCool™ Firm 21cm Mattress
Brand: TEMPUR
Retailer: Dreams
Delivery Time: Average
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 25 owner reviews of this mattress on retailer sites.

72%gave it 5 stars18 of 25 reviews
12%gave it 1 or 2 stars3 of 25 reviews
Top third on priceon price, at £1,649 (Double)61 of 76 other memory foam mattresses cost less today

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.

4.3owner rating out of 525 reviews
Dan Thomas
Verified by Dreams
4
We decided to spend a bit more money this time on a mattress after our last Mily one started to sag quite drastically after little more than 6 years. We tested one of the pro air smartcool mattresses in-store (albeit a thicker one) and were sold on it straight away. We got a fantastic deal on a 21" firm version and with the free bedding bundle worth over £800! The difference in sleep quality is literally night and day. The feeling of lying in bed waiting to go to sleep is plush and effortless, you just go to sleep, I can't put it any simpler! The mattress also goes back to it's firmness as it was just bought from the shop after it has cooled down from your body heat softening it up over night. For that reason, we opted for the firm version and glad we did after another salesman from another store said he wished that he went with a former version, so bear that in mind! My only regret, not going with a thicker version, as I think it would add even more comfort (if that's possible), but it is honestly fine! One gripe, the top cover is very slippery, so bedsheets tend to move around a lot, but a gripper set seems to have sorted that.
Joe...
Verified by Dreams
5
The service was really helpful, guiding us to the mattress we now absolutely love. It's the best sleep we've had years and we will definitely use them again. We cannot thank Dreams in Truro enough for the service they gave us and we have already recommended them to others. To top it all off, they even managed to deliver it a week early. Five stars all day long.
Kit MB
Verified by Dreams
5
Upgrading from an old spring mattress to a Tempur is completely game changing for a good night's sleep. I no longer wake up with nearly ad many aches and pains and I enjoy the feeling of the mattress forming around me as I relax. Combined with the pillows it really feels like it's designed to give you a good night's sleep.
Peter J.W.
Verified by Dreams
5
Having had a Tempur for many years and been very happy with it there was only one option when it came to replacing it! Have had this new one for two months now and can't fault it, we find it very comfortable and are getting a good nights sleep.
Jcwb
Verified by Dreams
3
Sinks in middle and centre of the side. When sitting on side of bed if I don't sit on right area I balance over from side to soft centre. Don't buy this mattress if you have disability problems
Lorrievan
Verified by Dreams
5
This mattress is excellent. I used to have a lower back and hip problem but it keeps me aligned so I have not had a flare up since.
Verified customer
Verified by Dreams
5
Never slept so well. The bed really supports your pressure points so I wake up in the morning without any aches and pains.
DynamicDragonite
Verified by Dreams
5
The mattress is as expected - quite firm but you sink in enough to be comfortable. It was very expensive though...
Robert1782
Verified by Dreams
5
We were greeted professionally, and walked through the options until we found exactly what we were looking for
David1982
Verified by Dreams
4
The mattress is good but not firm enough for me. The memory foam is very comfortable and cooling once it sets.
M&TS
Verified by Dreams
5
The mattress is extremely comfortable and I have slept much better every night since using the mattress.
A most satisfied customer
Verified by Dreams
5
Very satisfied with the product as it does what it says on the tin and is definitely worth the price.
Sportscurve
Verified by Dreams
3
Having had 2 weeks sleeping on it i think it's a bit too for me. And it's very hot!! Not cool at all
Beldie B
Verified by Dreams
5
After years of poor sleep I now get off to sleep more quickly and stay asleep throughout the night!
Diane Guest
Verified by Dreams
5
The tempur airflow mattress did what it said in the blurb. We are delighted with this purchase.
ghim67
Verified by Dreams
5
The mattress is really good. I used to have back pain the mattress has helped with the pain.
Daves79
Verified by Dreams
1
It's poor, not cooling at all and my side sinks more than the other. Expensive mistake..
Barbie2024
Verified by Dreams
5
Fantastic night sleep, very comfortable the best mattress and bed ever. Thank you
Surbyturn
Verified by Dreams
5
Most comfy mattress ever! Firm but perfect tension.

Questions and answers about the TEMPUR Pro Air SmartCool™ Firm 21cm 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
What can you tell me about the comfort level of this mattress?

Answer: Given the firm comfort grade, this mattress could provide exceptional support, particularly for people who sleep on their back or stomach. However, side sleepers or individuals with hourglass figures might find it less comfortable due to the rigidity of the firm tension.
Image of the post author
Common question
Does the mattress come with a comfort guarantee or warranty?

Answer: In fact you get dual assurance. Firstly, if the mattress is not right for you, an exchange can be made through the 100-Night Comfort Guarantee. Secondly, the product also comes with a 10-year guarantee that offers long-term peace of mind.
Image of the post author
Common question
Can you explain more about the cooling technology used in this mattress?

Answer: The Pro Air SmartCool cover is quite extraordinary; it is designed to transfer out any excess heat to help keep you cool throughout the night which is especially beneficial if you tend to feel warm while sleeping.
Image of the post author
Common question
What is the depth of the mattress and why does it matter?

Answer: This mattress comes with a streamlined 21cm depth which is ideal for achieving the perfect balance between comfort and support while also making it easier to fit into most bed frames.
Image of the post author
Common question
What care routine does this mattress need?

Answer: The mattress comes with a removable cover that is machine washable at 40 degrees; this allows easy maintenance for cleanliness and longevity of the product.
Image of the post author
Xr650supermoto
Will you be doing the mega bundle again as I would rather wait to buy a mattress if this is the case

Answer: We cannot say whether we will do the mega bundle again, but you can currently get 20% off the range of Tempur mattresses.
Image of the post author
Meechelle
Can this mattress be used with an adjustable bed frame?

Answer: Yes, this mattress is compatible with an adjustable bed.

Videos about this mattress

Hand picked video that relates to the specifications of The TEMPUR Pro Air SmartCool™ Firm 21cm Mattress

Firm vs Soft Mattress
Firm vs Soft Mattress
By BedStar
The Pros and Cons of Memory Foam
The Pros and Cons of Memory Foam
By Mattress Makers
TEMPUR® Sleep Technology
TEMPUR® Sleep Technology
By Tempur UK
About TEMPUR®
About TEMPUR®
By Tempur UK

Guides this mattress is featured in

This mattress is listed in 5 of our guides because its build meets what each guide looks for. Each card says what that is.

  • Sleep apnoea guide

    Why it’s featured

    This guide lists mattresses sold for adjustable beds, and soft-medium or medium hybrids that suit side sleeping.

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

    Why it’s featured

    This guide lists mattresses sold for adjustable beds, and all-foam or all-latex builds, which bend with the base.

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

    Why it’s featured

    This guide lists mattresses sold for adjustable beds, and medium or medium-firm hybrids with a memory foam layer that damps a partner's movement.

    Read the guide
  • Acid reflux guide

    Why it’s featured

    This guide lists mattresses that can bend on an adjustable base: those sold for one, all-foam and all-latex builds, and medium or medium-firm latex mattresses.

    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

  • Hands-on testIn store at Dreams, June 2024, 3 measures scored by our tester
  • Our assessmentConstruction, materials and firmness judged by our team, from over 10 years in the mattress industry
  • Specification17 points from Dreams' listing
  • Owner reviews25 analysed
  • Buyer questions9 read
  • Price history183 checks since March 2024
  • BenchmarkCompared with 76 other memory foam mattresses we track
  • Site-wideOur price tracker has logged 1,346,747 retailer prices since June 2019

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