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Best Soft Mattress 2021

Last Updated: June 1, 2021

If you are looking for the best soft mattress UK then you have come to the right place. It is important to do your research when looking for a soft mattress as some of these mattresses come with unique challenges. It is not easy to find a mattress that feels like a cloud but at the same time excels in support and longevity.

As it is important to select a good quality soft mattress for the reasons just outlined, we picked some of the best soft feeling mattresses in the UK from a mid to high range but also included some budget mattress options. We also looked for hybrid mattress models as well as soft memory foam mattresses that had all sizes available; single, double, king and super king size.

Here are our top picks for the Best Soft Mattresses here in the UK (Important Considerations in Conclusion).

Brook + WildeLux mattressHybrid100 Nights
10 Years
REM-Fit600 Lux mattressHybrid100 Nights
15 Years
SilentnightSofter mattressMemory Foam60 Nights*
5 Years
DormeoOctasmart Deluxe mattressMemory Foam60 Nights
18 Years
TempurCloud mattressTempur Foam100 Nights
10 Years
MammothShine Advanced Softer mattressMedical-grade FoamNA Nights
10 Years
*Prices are referring to the single size. Information may be subject to change, please check with the brand/manufacturer before purchasing.

1. Brook + Wilde Lux Mattress

brook wilde soft mattress
(Image credit: Brook + Wilde)

Our top soft mattress recommendation is the Lux mattress from Brook and Wilde, a UK based sleep company. The Brook and Wilde mattress has 3 firmness levels to choose from, these are soft, medium or firm. We, of course, are including the soft version for our top picks.

The Brook and Wilde Lux mattress has 5 unique internal layers and an outer breathable, durable yet also luxuriously softcover. Below the cover you will find cooling memory foam for a soft and cool initial contact, two sets of spring layers (2,000 + 1,000) engineered to keep you supported, "wave technology" foam, with zoning for spinal alignment and final base foam.

These layers come together to create a supportive yet also soft feeling mattress. As Brook and Wilde want their customers to feel perfectly satisfied, they also include a trial, where you can test the mattress at your home for up to 100-nights. If you aren't pleased, Brook and Wilde can either replace your mattress for a different firmness (soft, medium or firm) or give you a refund. To protect your purchase against time, you also receive a 10-year guarantee with your Lux Mattress. Finally, it is also worth mentioning that this soft mattress is loved by customers and critics, receiving an excellent Trustpilot rating.

2. REM-Fit 600 Lux Mattress

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soft uk remfit 600 lux
(Image credit: REM-Fit)

We had to include the impressive REM-Fit 600 Lux mattress into our soft mattress picks. This mattress which also scored highly on our luxury mattress recommendations is a soft to medium comfort made mattress and made from a National Bed Federation member.

This 5 layer mattress features a top zoned open-cell memory foam layer, two separate spring layers (2,500 mini and 1,000 full-sized), edge to edge support and finally a high-density base. Together they create a softer tension feel mattress yet also responsive and supportive around the circumference of the mattress which soft mattresses are often criticised on. Allowing for easy airflow is the Re-Ax cover which not only keeps the mattress cool but also adds softness to the overall feel.

With REM-Fit mattress is a 100-night trial, allowing you to test the mattress and ensure it is right for you. All returned mattresses are donated to the British Heart Foundation, REM-Fit’s partner charity. Time is a friend to no mattress, but with your softer feel, REM-Fit 600 Lux, you receive a massive 15-year guarantee

3. Silentnight Softer Mattress

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silentnight softer mattress uk
(Image credit: Silentnight)

The softer mattress from Studio by Silentnight is a local product, proudly manufactured in the UK. This is one of the softest memory foam mattresses we had found. Silentnights' softer mattress is fire resistant and approved by the National Bed Federation, ensuring the highest standards of quality and safety. The softer is a soft-medium feel mattress that is approved by Allergy UK and is scientifically proven to remove common allergens.

Featuring a soft and breathable knitted cover, the Silentnight Softer mattress cover is hypoallergenic and Purotex-infused. The upper core of the mattress is made up of an innovative gel-infused foam layer with added pressure-relieving properties. This initial soft layer bounces back to boost easy movement. Below the Geltex layer, we find a state-of-the-art memory foam layer. This layer contours to your body, hugging you as you drift off to sleep.

At the base of the Softer mattress are 2 identical layers. These are studio flex with added profiled support. These layers include profiled support, which is cuts into the base foam. All in all, the Softer mattress is designed to distribute your weight across the mattress, reducing pressure and promoting a restful nights sleep. 

Silentnight includes a 60-night sleep trial, allowing you to try out the mattress in your home for 60 nights and if you're not satisfied can choose a replacement mattress. The mattress also has a 5-year guarantee, ensuring that the Silentnight Softer mattress will last for at least 5 years.

(Video credit: Silentnight)

4. Octasmart Deluxe Memory Foam Mattress

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dormeo octasmart memory foam mattress
(Image credit: Dormeo)

Another soft memory foam mattress is the Octasmart Deluxe Memory Foam mattress and is possibly the smartest mattress Dormeo has created. It features double memory foam and innovative sleep technology, like the patented multi-award-winning Octaspring® Aerospace technology.

The cover includes hundreds of comfort pockets built into it, producing a supremely soft to touch sleep surface. The softcover also includes anti-dust mite, anti-mould, anti-bacterial properties and is also anti-allergenic for a more hygienic sleep surface.

Dormeo uses open-cell memory foam for this first layer which is twice as thick as in their other models, making the first layer softer and more comfortable. At the core of the mattress are the unique Octaspring technology, these springs adapt 3 dimensionally to alleviate pressure from your hips, shoulders and back. The bottom layer consists of Dormeo’s Ecocell® foam which has a permanent cell structure, which means it holds its shape and provides structure and support for the mattress. 

There are some additional impressive features this soft mattress has to offer which we couldn't fit into this short post but would highly recommend you take a look at the claims Dormeo make about this mattress.

The Octasmart Deluxe Memory Foam mattress comes with a 60-night trial with your mattress, allowing you to test it and ensure it is the one for you. To guard your purchase as time goes by, the Octasmart mattress includes an impressive 18-year warranty.

5. Tempur Cloud Mattress

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tempur cloud mattress uk
(Image credit: Tempur)

Our final soft mattress recommendations are on the pricier side of the spectrum. The Tempur Cloud Elite mattress is a combination of softness and support. Made in Denmark, this mattress is produced to create a soft, cloud-like feel as you lay down, all while supporting you as well. Tempur is a well-known brand in the mattress industry and makes use of their very own Tempur material in their mattresses. 

The cover is made of 3 parts, the top layer, side/ end panels and the base layer. The top is made from predominantly polyester making it not only durable but also soft and stretchy. The cover is removable and washable at up to 60 degrees celsius, helping to keep things clean and pristine. 

The 3 layer cloud design is created from a top Tempur extra soft material, which is made to conform and to cushion you to produce a "cloud-like" feeling as you lay down on the extra soft top layer. The second layer works with the first layer and provides support and acts as a transition layer to the bottom Durabase foam. The Durabase provides the foundation by using a strong and durable dense foam. Having a strong base means that the top 2 layers can work better, providing innovative support and softness. 

The Tempur Cloud Elite mattress includes what is called a 100-night trial, where you’re free to test and decide if you’re keeping the mattress or not. Also included in your purchase is a 10-year warranty, which means that the Tempur Cloud mattress is covered for up to 10 years.

6. Mammoth Shine Advanced Softer Mattress

Up to 70% OFF
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mammoth shine advanced softer mattress
(Image credit: Mammoth)

Made right here in the UK, by a member of the National Bed Federation, the Mammoth Shine Advanced Softer mattress is a top of the range product from Mammoth.

The Mammoth Shine Advanced Softer mattress features a Tencel fibre cover which helps battle bacterial growth while being soft and comforting. Mammoth uses exclusive medical-grade foam in this soft mattress version which is especially good for achieving comfort. The medical-grade foam responds immediately to the weight and shape of your body, helping you to remain in a neutral position. This increases spinal alignment, allowing you to rest peacefully and comfortably. The Mammoth Softer mattress also gives you maximum pressure relief, allowing your body weight to spread across the mattress evenly. Making this also great for couples as this allows you to rest more soundly with fewer movement thanks to the weight distribution. 

This Softer mattress from Mammoth is hypoallergenic while also being dust-mite resistant. This creates a more hygienic sleep environment, suited for those with allergies or asthma. 

Lastly, the Mammoth Shine Advanced Softer mattress comes with a 10-year warranty, protecting your investment against time.

Mattress Firmness vs Support

Mattress firmness and mattress support are commonly used interchangeably but they actually refer to different aspects of a mattress. For example, a mattress can have a soft feel and great support, knowing the difference is key especially for soft mattresses.

The firmness of a mattress relates to how the mattress feels, materials and layering determine if a mattress is soft or firm feeling. Mattress support generally is linked to how well it holds up, supports and keeps your spine properly aligned which is vital when looking for any mattress. A mattress with poor support can lead to back pain.

Soft Mattress Temperature Consideration

The most common type of "soft mattress" is a memory foam mattress, due to memory foams slow response nature it is commonly used for creating that cloud-like, hugging feel. Memory foam is heat retentive which you should keep in mind when doing your mattress shopping, it is a good idea to see if the manufacturer features some cooling technologies or even just a breathable cover.

Although we included some soft memory foam mattresses in this list we also made sure to pick some hybrid and pocket sprung mattresses.

Edge Support

Edge support is an aspect you may need to consider especially if you are looking for a mattress for you and your partner. Soft mattresses tend to be challenged in this area because of their very nature and the materials used but not always.

Look for mattresses with added edge support and springs that add that extra support around the circumference of the mattress that way you can utilise the whole surface of the mattress.

Best Soft Mattress UK Conclusion

We have covered our top picks, looked into the mattress materials used and included some important aspects to look out for when buying a soft mattress. Remember to find the right balance between softness and support for your next mattress, we hope you find the right mattress just for your needs, best of luck!


This site’s core purpose is to create the decision-making method quicker and cost-effective for you in regards to mattresses and bedroom accessories, here in the UK.

The reviews and views here are a collection from different sources we collect across the internet.
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