Best Firm Mattress UK


At this point, you should already know what type of sleeper are you, and you also know that your best sleep occurs on a firm mattress. Generally suitable for stomach sleepers, back sleepers – an...d for those on the heavier side – firm mattresses keep your spine straight, thanks to the firm support offered. However, since not every firm mattress is the same, this firm mattress buying guide will help you determine the best firm mattress for your needs – both through reviews and buying tips. Read on!

4.5/5 - (43 votes)

Top Listed Best Firm Mattress UK of June 2024

Product Information Our Verdict Price
Silentnight 1400 Eco Comfort Firm Mattress
Additional Information
  • Type: Pocket Sprung
  • Firmness: Firm
  • Features: Hypoallergenic, 1400 individual responsive Mirapocket springs for enhanced support from edge to edge, Made in the UK
  • Packing: Flat, full size mattress
  • Certification: This product is suitable and tested for domestic use to BS7177 Low Hazard requirements
  • Weight: 54.5 kg
  • Warranty: 5 years

Perfect firmness level for most people
Sufficient cushioning to make the mattress comfortable
Very breathable and perfect for people with allergies


Some people claim that it becomes spongy after a few uses

The mattress is of very good quality – firm, but with a decent level of softness. It is perfect for back and stomach sleepers.

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Silentnight Essentials Sprung Rolled Firm Mattress
Additional Information
  • Type: Spring System
  • Firmness: Firm
  • Features: Hypoallergenic; Eco Comfort; Fire Retardent; Made in the UK, Featuring 323 open coil springs which provide full body support from head to toe,
  • Packing: Rolled, mattress in a box
  • Certification: Meets all UK Fire Regulations
  • Weight: 22.7 kg
  • Warranty: 3 years

Open spring coil system makes it a highly supportive mattress
It has a longer life due to the fact that it is double-sided
The quilted cover ensures a comfortable, smooth sleep


The mattress is difficult to be turned over due to the absence of handles

This mattress is very durable and highly supportive due to its spring support system.

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Naturalex Carbontech Viscoelastic Foam Firm Mattress
Additional Information
  • Type: Viscoelastic Memory Foam, Latex
  • Firmness: Firm
  • Features: Multi Zone Ergonomic Targeted Support for Spinal Alignment, Hypoallergenic; Dual Seasons: Reversible
  • Packing: Rolled, mattress in a box
  • Certification: Meets all UK Fire Regulations
  • Weight: 12 kg
  • Warranty: 10 years

Very inexpensive mattress, considering the features that it brings
Efficient when it comes to relieving back pain
Durable mattress thanks to its double-sided design


Quite heavy
Absence of handles make it difficult to turn around

For the price, the mattress features a great quality. It is a great choice if you are looking for extra firmness.

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Silentnight Miracoil Springs Firm Mattress
Additional Information
  • Type: Miracoil Spring Mattress
  • Firmness: Firm
  • Features: Zoned Spring Support, Eco Comfort Fibre, Handcrafted in the UK, Tested at our in-house SATRA approved lab
  • Packing: Full Size Mattress
  • Certification: Made in the UK to British Standards/Regulations
  • Weight: 26 kg
  • Warranty: 5 years

High-density reflex foam that is firm and highly supportive
No-spring construction ensures that the mattress is silent
Dry-cleanable jersey cover ensures longer-lived freshness


Some users claim that the foam loses its strength quite fast

The mattress is overall very comfortable and firm – as well as a great choice for those that do not like spring mattresses.

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Silentnight Pocket Natural Wool Firm Mattress
Additional Information
  • Type: Pocket Natural Wool Mattress
  • Firmness: Firm
  • Features: Generous 28 cm depth mattress, traditionally hand tufted for firmer back support, 1350 Zoned Mirapocket Spring System, Natural Wool Comfort Layer
  • Packing: Full size mattress
  • Certification: Meets all UK Fire Regulations
  • Weight: 54.5 kg
  • Warranty: 5 years

A very supportive mattress that adheres to the shape of the person
Very firm and supportive mattress for the spine - Is resistant to motion transfer


Some say the springs can be quite noisy

The mattress is a very good option for a comfortable sleep – all while being highly supportive.

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Top 5 Firm Mattresses in the UK

1. Silentnight 1400 Eco Comfort Firm Mattress

Silentnight 1400 Eco Comfort Firm Mattress

The day is finally over, and you are ready to go to sleep. When you lay down, you want to feel a comfortable mattress that offers comfort and support, not uncomfortable springs that stick up to the surface top. There is nothing like the feel of a mattress that is comfortable when you are trying to go to sleep. You need a good night’s rest at night in order to be ready for the day coming up.

The Silentnight 1400 Eco Comfort Firm Mattress is going to give you a comfortable night rest no matter what position you choose to sleep in. This best firm mattress is why many people are resting more comfortably and are able to get up in the morning with fewer aches and pains from sleeping in the wrong position or on an uncomfortable mattress.

The Comfort of the Silentnight1400 Eco Comfort Firm Mattress

This firm mattress comes to you with many perks and benefits. The fibers that were used to make this firm mattress are breathable so you can rest comfortably without overheating and the mattress it’s free of chemicals too. The fibers are eco-friendly to help the environment.

The support found in the Silentnight 1400 Firm Mattress is tailored to fit the mattress in a way that gives you nothing but support. The top of the mattress offers a hand-tufted surface great for offering you even more back support and a firmer feel. If you are a stomach sleeper or a back sleeper, you will like the firm feel of this mattress because it offers additional support from the top to the bottom.

This best firm mattress is also hypoallergenic for those who suffer from allergies or find it difficult to sleep when they lay down because the mattress triggers allergens.

Benefits of the Silentnight 1400 Eco Comfort Firm Mattress

When the weather is warm, the aches and pains of the day you just completed can become an issue as soon as you lay down. With a mattress that offers support from head to toe, your body can let go of the muscles that have been tense as they carried you through the day. You feel the comfort of the mattress as it forms to your body. No more sweating in the bed with this type of breathable fabric used to cover the mattress.

Silentnight 1400 Eco Comfort Firm Mattress Features

  • 25 cm mattress depth
  • 1400 pocket spring system that targets zones to offer comfort with every turn. Individual springs are held under a certain amount of tension within the frame of the mattress. When you move, each spring can respond individually to your body so that your weight is evenly distributed
  • This mattress offers a different type of support compared to other mattresses. With the Mirapocket spring system, the pressure is relieved so you can sleep comfortably
  • The mattress is made in the UK following European and British Standards.

Customer Opinion

The majority of customers for this firm mattress double are very pleased with the firmness of the mattress. Not only was it supportive, but it was comfortable as well. This firm mattress offered a good night’s rest for many consumers who purchased it.

Final Thoughts

It’s important to get a good night’s sleep and that is why it’s important to make an investment in your mattress. Approximately 6 to 8 hours is spent on this mattress for sleeping and it can make a twenty-four-hour difference throughout your day

2. Silentnight Essentials Sprung Rolled Firm Mattress

Silentnight Essentials Sprung Rolled Firm Mattress

When you are ready to go to bed, you don’t want to lay there tossing and turning in order to find a comfortable position to lay in. The mattress that you currently have has helped you get through some rough nights and now it’s time to replace it with something better, something that is going to offer you everything you need out of your mattress to get a good night’s rest, support & comfort. The Silentnight Essentials sprung rolled firm mattress will be the mattress to do just that.

Modern technology today can take the springs and individually place them inside of a mattress so that your body is supported from head to toe no matter which position you are sleeping in.

The Comfort of the Mattress

There are 323 open coil springs found in this firm mattress for back pain so that you have full support in any position: front, back, right and left sides. The firmness is great for those who like to sleep on their backs or just need additional support for the entire body no matter what position you want to sleep in.

The filling consists of layers of soft fibers that are comfortable to sleep on followed by a cover that is quilted for added comfort and durability. Because this firm mattress double is double-sided, you can turn it every six weeks in order to get a longer life out of the mattress, which also equals more value for your money.

Benefits of the Silentnight Essentials Sprung Rolled Firm Mattress

No matter where you lay on this mattress, your body will be fully supported; this will give you a more sound and relaxing sleep because you are not feeling the springs when you turn over or you don’t have to find that dip in the mattress that is comfortable enough to sleep in. The material that covers the mattress will give you a comfortable and cool night’s rest without clinging to your body and making it difficult to go to sleep. Whether it is snowing outside or it is hot, you want your mattress to stay cool while you sleep.

Silentnight Essentials Spring Rolled Firm Mattress Features

When searching for a pocket sprung firm mattress, you want to find one that meets all your needs. This firm mattress offers:

  • Comfort filling for a softer surface
  • Firm hardness
  • Perfect for most sleepers, including back sleepers
  • Hypoallergenic
  • 323 springs that are carefully placed inside this mattress to provide you consistent support from head to toe no matter what position you are laying in.

Customer Opinions

Customers who purchased this firm mattress double liked that the mattress was firm and that made sleeping more comfortable. When they turned over in bed, they would not feel the springs inside the mattress and the top cover was extra comfortable. A number of users claimed their back pain disappeared after sleeping on this pocket sprung firm mattress.

Final Thoughts

With 323 independent springs inside this firm mattress for sale, there is a complete support system for you, no matter what type of sleeper you are. You won’t feel the springs when you turn over, but you will know that they are there, supporting you all night.

3. Naturalex Carbontech Viscoelastic Foam Firm Mattress

Naturalex Carbontech Viscoelastic Foam Firm Mattress

It’s a pleasant feeling when you wake up in the morning, fully rested, after a good night’s sleep. You can stretch without pain and stiffness and you seem more prepared for your day ahead. When you return home after a day away, you are looking forward to another nights’ sleep however, you may find yourself tossing and turning in the middle of the night because you can’t fall asleep due to your uncomfortable mattress.

The Naturalex Carbontech Viscoelastic Foam Firm Mattress may be what you need to get back to those restful nights that give you a comfortable sleep and wake you up greeting the morning instead of hiding from it.

The Comfort of the NaturalexCarbonteck Viscoelastic foam firm mattress

This firm mattress double offers comfortable nights rest for those who like to sleep on the back or stomach. With this firm mattress, you will find additional firm support that allows you to sink comfortably into the mattress, but not too much. The mattress is covered in memory foam so you can turn over and relax as the mattress conforms to your body shape.

The fibers are carbon, and they act as a barrier when it comes to static electricity which is normally produced by the body during your sleep. This static electricity will cause muscles to tense up, giving you the feeling of stiffness when you wake. The thermoregulating foam makes it possible for you to fall asleep faster and improve your rest, clearing your mind, and making you feel comfortable and in control of your nights again.

Benefits of the NaturalexCarbonteck Viscoelastic Foam Firm Mattress

  • With two options of depth to choose from, you can choose the one that matches your bed frame. The choices are 22cm or 30cm.
  • Memory foam is covered with fabric that offers insulating technology.
  • No pressure points when sleeping due to the multilayer core as well as the high ergonomic support of Blue Latex technology that supports targeted areas such as the back and hips
  • Because this firm mattress offers thermoregulating foam, it also helps to control the temperature while sleeping so no matter what the weather is like outside, the mattress will be consistent all through the night.
  • There are 7 comfort zones that work together to provide a balance within your sleeping style. No matter what direction you lay in, there will be some form of support and you won’t toss and turn all night.

Customer Opinion

Customers who bought this firm mattress with memory foam liked the way it supported their bodies while sleeping. No matter what position you were in, the mattress would consistently work smoothly to ensure that you were comforted. The result was less tossing and turning and more relaxed sleep. This firm mattress was purchased for different age groups from children to adults.

Final Opinion

With a 30 – day money-back guarantee on this best firm mattress, it is worth a try if you need a new mattress with support. When it is time to change, it’s good to know that you can try it out first before you invest in it.

4. Silentnight Miracoil Springs Firm Mattress

Silentnight Miracoil Springs Firm Mattress

Are you tired of suffering from a less than average night of sleeping? The tossing and turning and consistently waking up in the middle of the night can make you feel even more tired than you already are. When you get to the point that you are waking up tired, achy, feeling stiff, and unable to find any motive to get through your day, you may want to consider purchasing a new mattress, like the Silentnight Miracoll Springs Firm Mattress.

This best firm mattress may be all you need to get back to feeling like your old self again and that is worth the purchase. Imagine waking up in the morning on the first alarm and being able to move about with less pain and feeling like you can get through your day. It’s amazing what replacing your old worn-out mattress can do.

The Comfort of the Silentnight Miracoll Springs Firm Mattress

Imagine getting a good night’s rest on a mattress that features comfort fibers to ensure that you feel refreshed throughout the night and wake up feeling the same way. These luxurious fibers are actually made with eco-friendly materials that do no harm to the environment.

The Miracoil spring system provides additional support to the spine so that when you lay down, you are properly aligned which helps you to wake up feeling refreshed and less sore. When the spine is aligned correctly, it takes the pressure off of the hips and back. When you lay in one position over a long period of time on this mattress, you won’t wake up stiff and sore; instead, you will wake up refreshed without the pressure and stiffness of laying misaligned for so long.

The best firm mattress is covered with a quilted cover that gives the mattress extra cushioning when you are laying down so you won’t feel the springs that are below.

Benefits of the Silentnight Miracoll Springs Firm Mattress

  • A luxury feeling sleep surface
  • Breathable eco-comfort fiber layers that allow the air to flow naturally while you are sleeping so you don’t wake up prematurely
  • Zoned spring support that offers comfort as well as support for every shape and size. While traditional springs are round, Miracoll’s shape allows it to hold more springs which in turn offers you complete support and maximum sleep.
  • The mattress is handcrafted in the UK

Customer Opinion

The majority of consumers who purchased this best firm mattress found that the comfort of the bed from the quilted cover on top to the springs hidden down below, this mattress is comfortable in all positions. They also seemed to be satisfied with the decrease in the number of times they woke up in the middle of the night to try and reposition themselves and get comfortable again.

Final Thoughts

When purchasing a mattress, it’s important to know what you are looking for before you begin your search. If you are looking for support, the coolness of material, and the ability to balance your weight, then this is the mattress you may want to consider purchasing.

5. Silentnight Pocket Natural Wool Firm Mattress

Silentnight Pocket Natural Wool Firm Mattress

Sleep is so important in many ways; without a good night’s rest, you may not be able to get up and function properly through your day without feeling tired or overstressed. You may also feel sore and hurt like you have slept in one position all night or you have slept in the wrong position throughout the night. If you like to sleep on your back all the time, if the mattress is not supportive, you may wake up feeling worse than when you went to bed.

If you are thinking about purchasing a new mattress, you may want to search for one that is made more for those who sleep on their back than any other position. Sleeping on the back at night can be hard on the spine, especially if your spine is not aligned.

The comfort of the Silentnight Pocket Natural Wool Firm Mattress

Some of the main features of this natural wool firm mattress are what make it unique and geared more toward back sleepers. First, the mattress comes with a unique Mirapocket zoned spring system so that there are no pressure points on the body while you are sleeping. Another great feature is the springs are nestled inside the firm mattress; there are 1400 individuals springs altogether. The wool in the mattress is natural wool, which is going to last for a long time, adjust to the temperature of your home without splitting, and supports the mattress in a way that is not uncomfortable.

The materials used to make this best firm mattress are hypoallergenic so while you are sleeping, the allergens are not creeping up to wake you up out of sleep with a stuffy nose, sore throat, a headache, or any other symptom you normally suffer from when your allergies act up.

Benefits of the Silentnight Pocket Natural Wool Firm Mattress

  • The 1400 Mirapocket springs in the mattress are what is going to support you when you turn over from side to side or on your back or stomach. Each spring will support your weight when it senses it pressing down, even it is a slight pressure. When the springs work together to hold your body in the shape you choose to sleep in, they don’t wear out so quickly and you never wake up because of pressure on your back or legs due to no support. You can roll from one side to the next and never feel the springs but at the same time, feel supported.
  • Natural wool is the material used to create a comfortable layer on this best firm mattress. The wool keeps the temperature regulated more consistently and will adjust in every season.
  • The mattress uses naturally sourced silk, cashmere, and wool to create the perfect feel when you lay down.

Customer Opinion

Consumers who purchased this best firm mattress and used it, suggest that it does maintain the temperature well and that gives them a sounder sleep during the night. When they woke up in the morning, they felt more relaxed like they got a good night’s rest.

Final Thoughts

When it comes to a mattress, the wool used to create a more regulated temperature is ideal as are the 1400 springs individually wrapped in the mattress to create unbreakable support no matter what position you sleep in.

What to Look for in a Firm Mattress

When you are looking to buy the best firm mattress, there are several things that you need to take into consideration. This way, you can make sure that your purchase is worthwhile and that you do not invest in a firm mattress that is not suitable. Here is what most people look at when it comes to the best firm mattress UK.


The materials (or combination of materials) from which the best firm mattress UK is made is perhaps one of the most important aspects to consider when you are looking to purchase one. There are a variety of materials that you can choose from, including steel coils, foam latex, and other options – all of which have their pros and cons.

For example, many people like the way memory foam contours around the body – but in hot climates, it may get uncomfortably warm throughout the night. On the other hand, spring coils are an excellent way to keep yourself fresh – but there is a good chance of feeling your partner movements during the night. Sometimes, a mix of both can reduce the negatives, as less material is used.

The thickness of the Best Firm Mattress

The best firm mattress can be anything from 6 to more than 20-inches thick. The thickness of your best firm mattress can have a significant impact on the quality of sleep – particularly if you are on the heavier side. If you are a bit overweight, you will most likely feel more comfortable on a thicker mattress thanks to the extra support offered. That being said, your budget also needs to be considered, as thick mattresses tend to be a bit more expensive. You need to be able to pay more for those extra inches of comfort.

Heat Retention

When you are sleeping during the night, the last thing that you want is to feel too cold or too hot – which is why you may need to check the heat retention of the materials used. Make your choice depending on whether you tend to sweat or feel overly chilly throughout the night.

For instance, if you have a tendency towards feeling cold and you cover yourself with one too many blankets, then you might want to choose a firm mattress memory foam mattress – as it is more efficient in terms of retaining heat. Should you suffer from ho sweats, perhaps a cooling mattress will be a more suitable choice.

On the other hand, if you tend to feel very hot and you need a way to reduce temperature, perhaps materials such as gel or latex will be more efficient. These materials are better when it comes to temperature regulation, they are breathable materials that allow for airflow to circulate freely.


The best firm mattress should come with a long warranty. If your firm mattress does not last the way that it was supposed to – even with proper maintenance – you will need to have some coverage. Most mattresses come with 1 year of warranty, but you will find companies that provide more extensive product warranty, up to 10 years manufacturer guarantee. The best firm mattress models in this buying guide, in particular, the ones from Silentnight and Inofia come with a min of 5 years manufacturer warranty!

Final Thoughts

Every person needs proper support during their sleep, lest they want to wake up with back pain in the morning. The best firm mattress UK can ensure that your spine stays adequately aligned – particularly if you tend to sleep more on your back and on your stomach. Hopefully, our reviews and buying guide have managed to narrow down the choices for you.