Silentnight is the UK’s largest manufacturer of beds and mattresses. Silentnight creates all of their mattresses and beds in Barnoldswick, Lancashire, and their specialist factory produces more mattresses each year than any other manufacturer in the UK.

With over 75 years of experience, they are considered the best in innovation, quality, and service as Silentnight is also the UK's most trusted sleep brand. According to research conducted in September 2022 with 600 consumers by Vision One, Silentnight was rated with the highest level of trust versus other sleep brands.

Silentnight mattresses are tailored to stop unwanted sleeping habits. Whether you’re looking for a certain firmness or support system, or after an eco-friendly mattress, Silentnight has a variety of options to suit every individual’s needs.

Some of the manufacturer's most popular products are:

• Silentnight Ortho Dream Star Miracoil Mattress (One of Mattress Online’s Top 10 Mattresses - for two years running)
• Silentnight Vilana Limited Edition Miracoil Mattress
  
• Silentnight Sofia 1200 Mirapocket Mattress

Founded more than 70 years ago, Carpenter now has more than 60 locations, over 6,000 employees, and more than a dozen manufacturing plants in the UK as well as across the globe. This makes it one of the largest mattress manufacturers in the UK.

Moreover, Carpenter is also the world’s largest vertically integrated manufacturer of polyurethane foams and specialty polymer products, making it the world leader in bedding and mattress material.

Carpenter uses computer-aided design, state-of-the-art cutting techniques, and industrial robotics, to continuously develop innovative ways to cut and shape polyurethane foam to make the best mattress for their customers. Their experienced hands can deliver complex cuts, punched hole designs, and zoned profile cut parts to customers' precise specifications, therefore adding style and value to the products.

Besides mattresses, the manufacturer also provides other products including Polyurethane Foam, Block Foam, Carpet Underlay, Furniture & Fabrication, Technical Foam, and more.

Here are some of Carpenter's best-reviewed products:

• Carpenter 5-Zone Full Mattress Topper
• Avena Foam RV Mattress
• SleepBetter Isotonic TheraGel 10-Inch Thick Mattress

Headquarters: Liverpool, England

Founded: 1950

Website: https://carpenter.com/

Even though Harrison Spinks is not the largest mattress manufacturer on this list, it is for sure one of the oldest, with a long history of making high-quality mattresses from scratch.

Established in 1840, Harrison Spinks is a fifth-generation family business that today has over 500 people working from farmers who rear sheep to craftsmen and women who still sew, side-stitch, and tuft mattresses by hand.

Harrison Spinks' mattresses start on their 300-acre farm in North Yorkshire where the company raises their prize sheep and grows out their own hemp and flax fibers. Moreover, the mattresses are handmade to order and tailored to each individual customer.

Especially, the manufacturer is also a leader in sustainability. In 2019, they received the Queen’s Award for Enterprise in Sustainable Development. They also gained their Carbon Neutral+ accreditation not long after, proving their efforts in working with the Earth, not against it.

Harrison Spinks' products are known to have the finest, sustainable materials, blissfully supported by thousands of pocket springs. Customers can order their dream mattresses from Harrison Spinks' collections include:

• Somus
  
• Lunar
• Zenith
  

Headquarters: Leeds, England

Founded: 1840

Website: https://www.harrisonspinks.com/

Airsprung is a privately owned business that boasts an unbroken heritage dating all the way back to 1870 in the UK. Providing some of the best mattresses and services appropriate to their varied target markets, Airsprung is among the largest mattress makers in the United Kingdom.

Airsprung produces beds, mattresses, and upholstery at a wide range of specifications and price points. Their customers range from the highest-profile independents to the largest multiple retailers. In fact, most of the biggest names on the high street and in the digital space carry Airsprung's products.

Moreover, quality and safety have always been central to Airsprung. All of their manufacturing companies are members of the Furniture Industry Research Association (FIRA) and their headboard businesses were among the first in the UK to gain approval for the National Bed Federation (NBF) code of practice.

Most importantly, the manufacturer regularly monitors customers' feedback. In their most recent survey with over 5500 customers, Airsprung achieved a highly impressive average of 4.5/5.0 stars.

Two of the most beloved mattresses from Airsprung are:

• Airsprung 800 Pocket Memory Mattress
• Airsprung 1200 Pocket Mattress

Headquarters: Trowbridge, Wiltshire

Founded: 1870

Website: https://airsprung-group.co.uk/

Sleepeezee is the oldest and one of the largest British manufacturers of mattresses. The manufacturer received a Royal Warrant of Appointment for its products and has Travelodge - the UK's largest independent hotel brand with over 570 limited-service hotels across the UK, to feature their mattresses.

Sleepeezee is one of the most well-known bed manufacturers in the UK and in the world for its innovation and market-leading mattress designs. Every detail is diligently checked for consistency and quality, allowing all customers to be reassured that the bed they are investing in will provide them with the perfect night’s sleep.

Sleepeezee has a wide range of mattresses to suit all sleepers and spaces. All of their mattresses are carefully manufactured using traditional techniques and quality materials to ensure that each detail is perfect for your sleep space.

Customers can look for Sleepeezee's mattresses through their Mattress lines including Jessica, Pure, Perfectly British, Pocket Gel Plus, G Memory, Campaign for Wool, Cool Rest, and Ortho Bespoke.

Some of the best Sleepeezee mattresses to check out are:

• Sleepeezee Poise 3200 Mattress
  
• Sleepeezee Lexington Beautyrest Boutique
• Sleepeezee Jessica Support 800 Pocket Mattress
  

Headquarters: Rochester, Kent

Founded: 1924

Website: https://sleepeezee.com/