VS
Silentnight logo banner
Coolflex logo banner

Silentnight vs Coolflex Mattresses

Want Mattress is supported by readers. Some links on Want Mattress are referral links. If you use one of these and buy something, Want Mattress may make a small amount of money. More info .

Silentnight

Silentnight is one of the most recognised and established mattress retailers within the UK. That’s not all they do though, they also sell all-things bedding meaning you can get bed frames, sheets, duvets and pillows too. For those unaware, Silentnight is one of the more long-standing manufacturers, first entering the market back in 1946 and providing a good nights sleep ever since.

Silentnight are truly dynamic in their desire to provide good sleep for everyone and in doing so there is a wide range of different mattress types available. Ranging from bed-in-a-box to traditional mattresses, soft to firm and gel to eco comfort fibres, there really is something to fit every budget and comfort market. Read on to see how Silentnight mattresses stack up against the competition.

Read our full Silentnight review

Coolflex

Coolflex is a value hybrid mattress range sold exclusively through MattressNextDay. The brand has grown from a single rolled mattress into a catalogue covering multiple construction types with a specific focus on cooling technology at accessible pricing. The range includes the Essentials Pocket Memory Hybrid, Premium Memory Hybrid, Hybrid Ice, Hybrid Chill and Lux Ortho Pocket, each targeting a different buyer profile.

What makes Coolflex worth looking at is the combination of proper pocket spring hybrid construction with cooling-focused materials at prices that undercut the major direct-to-consumer brands. For hot sleepers shopping on a budget, Coolflex is one of the first alternatives to consider.

Read our full Coolflex review

Mattress Score

Overall Score:
Silentnight: 4.62/5.00
Coolflex: 4.10/5.00

Price:
Silentnight: £109.00 - £1499.00
Coolflex: £149.00 - £399.00


Based on aggregated reviews and performance scoring, we would recommend Silentnight in this face off!


Becky
Compares

Silentnight Owner Satisfaction

Satisfaction is at the core of everything Silentnight does and it’s evident through their tight relationships with both the consumers and retailers they work with. With the wide range of different products there’s something for everyone and thanks to advancements in technology surrounding edge support, roll-together prevention and better comfort layers that are both durable and luxurious, satisfaction has never been higher. Customer feedback is strong with many of the mattresses in the line-up being some of our highest and most well-reviewed. People particularly love the body contouring ability of the pocket springs, while the eco comfort fibres provide a sustainable and comfortable top layer.

Silentnight Supportiveness

Supportiveness is where Silentnight really shines. They’ve adjusted their offering over the years to focus more toward medium and firm tensions which naturally contour to the body better and help to alleviate back and neck pain. Silentnight also deployed an array of different support systems to further assist with adequate tension with the Mirapocket base layer proving the most popular and suitable if you are looking for additional support.

For those that suffer from back pain you may find the models within the range that feature hand tufting to give an additional bit of support.

Silentnight Durability

The average mattress is replaced at around the 7 year mark, that’s why it is so important for the durability of the mattress to hold up over time as the price point regardless of model is also going to be a considered purchase. With Silentnight, we have decades of proof that the mattresses truly stand the test of time and while our preference will always be that mirapocket layer over miracoil for increased lifespan, either should generally be suitable.

Another consideration in Silentnight’s favour is that the primarily spring based support layers are typically more breathable than their foam counterparts. Breathability means you are cooler and the mattress absorbs less moisture over time. Moisture over a long period of time can affect lifespan, performance and health.

Silentnight Best Offers

We've managed to find the following top deals from across the web on Silentnight mattresses.

Coolflex Owner Satisfaction

Coolflex reviews are consistently strong on two specific points: the cooling performance is real rather than marketing decoration, and the value for money at this price tier is hard to beat from the mainstream alternatives. MattressNextDay handles delivery and returns reliably, which gives the buying experience a stable foundation that standalone budget brands often lack.

Hot sleepers are the buyer profile most likely to rate Coolflex highest, because the cooling technology in the Hybrid Ice and Hybrid Chill models delivers a measurable difference from standard foam alternatives. The main complaint pattern we see relates to edge support on the entry-tier models, which improves as you step up through the range.

Coolflex Supportiveness

The pocket spring cores across the Coolflex hybrid range provide genuine structural support that pure foam alternatives at similar prices typically lack. The Premium Memory Hybrid is the sweet spot for most buyers, with a spring count and foam layer depth that handles average weight sleepers across back and side positions comfortably. The Lux Ortho Pocket handles the firmer end for stomach sleepers and back pain sufferers.

The Hybrid Ice and Hybrid Chill add cooling layers on top of the pocket spring base and are the models to look at specifically for hot sleepers who want temperature regulation alongside the hybrid support structure.

Coolflex Durability

The pocket spring and foam hybrid construction that Coolflex uses across the range is the build type we generally expect to last longest at this price tier. Pocket springs provide structural longevity that all-foam alternatives cannot match, and the foam layers above use reasonable densities for the price point. MattressNextDay backing gives the brand a retail infrastructure that supports warranty claims.

As a newer brand, the long-term durability data is limited compared with heritage manufacturers like Silentnight or Sealy, but the construction approach is sound and the early-year review data is consistent with what you would expect from a well-made hybrid at this price.

Coolflex Best Offers

We've managed to find the following top deals from across the web on Coolflex mattresses.

Silentnight Most Useful Customer Reviews

5 Verified Buyer

This is the first mattress I've ever bought. That's not to say I've never had a mattress in my possession before, it's just that, at the age of 32, this is the first one I have actually purchased myself. To an inexperienced customer, the world of mattress shopping is a daunting and complex domain, populated by a practically endless set of variables which one might never have previously considered, including 'pocket springs', 'coils' and 'memory foam', on top of the standard 'three amigos' of retail: price, brand and size. A visit to John Lewis with my girlfriend (a mattress-buying veteran who provided a welcome guiding hand) one evening after work provided an opportunity for us to get to grips with some of the many options first-hand. This was an investment of time I recommend to anyone in advance of considering making such a life-defining purchase online. I learned from this trip that the upper limit of what one can spend on a mattress is practically (but crucially, not literally) infinite. This was also the point at which the inherent gamble involved in the endeavour of mattress-purchasing was laid bare to me, with the stark realisation that no amount of casual testing of a mattress in-store could ever be sufficient to know what it would actually *be like* to sleep on one, let alone spend hundreds - and probably thousands - of nights cuddled up in (hopefully) restful slumber. After literally minutes of consideration, we left the store with a reasonably-priced, reliably-branded double 1200 pocket sprung memory foam option in mind and gainfully treated ourselves to dinner at an American BBQ restaurant as reward for our evening's work (which was, as it happens, dimly-lit and somewhat disappointing, though this is not our concern here). In the end, we went to Mattresses Online and bought what looked like a similar option, except with 1000 not 1200 pocket springs. Our experience thus far has been positive. We have not felt at all poorer for the 200 less pocket springs, and the memory foam element provides welcomingly soft cushioning, like laying down into the warm embrace of soft, yet firm, human flesh. I fully endorse this mattress.

5 Verified Buyer

I bought this 2 weeks ago and it’s been amazing so far, the pocket springs combined with the memory foam pillow top makes this bed very comfy and a dream to sleep on! Far better than my old simba hybrid mattress as that one was all memory foam, Good pocket springs from a reputable company like silent night are the way to go! And the fact this bed has a pillow top to make it that lil bit comfier is great, the pillow top is lowkey essential.. The bed come a bit firmer than I’d have liked took 3 nights to break it in, then it was perfect and it’s been very comfy ever since! I didn’t see this bed in store as it’s online only but I’m so glad I went with this one absolute dream! Only negative I do have is the fact it took 2-3 weeks to arrive which meant I had to sleep on my neighbours 10 year old mattress while I waited for it to come, defo worth it though. Positives • Very comfortable • Pocket springs provide adequate support without reducing any comfort • It looks like a well built mattress that will last a long time • 8 year guarantee for a extra fee but wasn’t too expensive for the peace of mind provided • Look for excuses to get to bed earlier now • Perfect size (little bit smaller than my simba double but works well with my bed frame) • Good height mattress! • Mirapocket zoned springs are a great help to provide support & comfort Negatives • Took what felt like a month for the item to arrive • Can’t see the item in any store in the Uk for some reason it’s online only which is annoying • No handles on the sides so turning the bed round is a ball ache!! Overall I’d give it 5 stars so far I may do another review 6 months in and let you all know how I get on with it as I’m aware mattresses can change from 2 weeks - 6 months hopefully this one stays comfortable and supportive it looks well built so I’ve got a feeling this will be the case.. If you liked this review SUBSCRIBE TO MY YOUTUBE CHANNEL! ‘AT VLOGS’ I may do a review on there if you want

5 Verified Buyer

This is a REALLY firm mattress, like sleeping on a floor. That is just what I wanted.I have a genetic condition called Ehlers Danlos Syndrome, which means my skeleton is not held in place properly due to my connective tissue being 'floppy'. This is the best mattress I have ever owned (far better than 'luxury' brands costing upwards of £1,000) and supports my skeleton perfectly. At last, I can have a comfortable night's sleep and not wake up with dislocated joints (yes, that does happen) and severe pain all over my body.So, for me, this mattress is heaven itself.However, you have to realise that this is like sleeping on a breeze block for most of your body. If your current mattress is saggy, it is probably because it's old or worn or hasn't been turned properly. Do not buy a 'very firm' mattress to replace it unless you want a really HARD bed! Pretty much any new mattress will be firmer than an old one. This mattress is designed for people who are obese or disabled or have an extremely bad back that is permanent. I would imagine that for other people it would be way too firm. So beware of that before you buy.But if you know you want a very firm mattress, then believe me, you can't do better than this for the price. So long as you rotate it every week initially as recommended (after two months you can rotate it once a month), it does not sag. I have had mine about six weeks now and there is no sag whatsoever.

4 Hot Sleeper Paul

I am both a 'hot sleeper' who has the problem of heat build up in the mattress comfort layers, and also someone who prefers a very firm mattress as good for back support. The BE1400 therefore seemed ideal. After trialling for 30 days a mixed outcome. The mattress generally good at preventing overheating, much better than many I've tried (including very hot memory foam, and supposedly cooling wool/natural ones that also got very hot in my experience). However, still some heat build up in the comfort layers and I'd describe as a warm mattress rather than cool one. I was waking 2-3 times a week and having to shift position to a cooler part of the mattress, but still much better than the foam or wool mattresses. Main surprise though was that the mattress was exceedingly firm, with almost no give at all. I like a firm mattress but even so would have liked a little more and the mattress maybe better for heavier sleepers (I'm 84 kg) - but did mean no back pain and slept very well in that respect. In the end after the trial though I swapped to the almost identical BE1000 version, which is a little less firm. Also one other observation, the aloe vera infusion was very subtle and not noticeable once sheets on, but nice to have.

5 M4tt75

I've had this mattress around 6 months and bought it based on positive reviews here. I wanted medium to firm mattress to help my back pain. The order and delivery service from Dreams website was pleasant, smooth and easy. Really glad I couldn't send this mattress back within first 100 days as I initially found it too firm and it caused me pain. I realised it may need time to 'soften up'. In the meantime I bought a Silentnight 1" mattress topper, which immediately did the trick! The mattress with only a 1" was so comfortable and lovely to sleep on. After a couple of months when the warmer summer nights arrived I removed the mattress topper and wow the mattress on its own was great! Nice and comfortable and cool for the warmer nights. Had no pain at all and had great sleeps. This past few weeks I've reapplied the mattress topper for the winter cooler nights, and wow again, such comfort! Overall this mattress is great has improved my sleep. I really look forward to going to bed (and early!) every night. When I'm away I look forward to coming home to my own bed and this new comfy mattress. Thank you Dreams and Silentnight! I will be a returning customer when this mattress has had its day.

Coolflex Most Useful Customer Reviews

4 Zoe91

Generally appreciative of the superior back support offered by this piece although individual spring design occasionally falls short on expected comfort levels. Overall, exceptional orthopaedic advantages and satisfactory pressure relief makes it a worthwhile purchase.

4 Spencer Hughes

Really can't complain about this mattress. It's provided me with solid support, I wake up feeling refreshed each morning. Ideal for us folk who sleep on our back.

4 JRCollins

Really loved the quality of the mattress, it's comfortable and offers good support as promised. Nice, cool and refreshing - definitely improved my sleep.

5 NewDave

Relishing the quality, the comfort level is just splendid. It truly enhances my nightly set-up, giving the refreshing sleep my body needs.

4 Sleepy5

After weeks of using this, I can say it's pretty comfortable. The memory foam contours my body well, offering decent support and comfort.

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