Firm Mattresses | Best Firm Mattresses UK

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2’6″ Small Single Duke Ortho Mattress

was

~~£170~~

Now

£170

3’0″ Single Duke Ortho Mattress

was

~~£170~~

Now

£170

3’0″ Single Snooze Easy Mattress

was

~~£270~~

Now

£250

4’0″ Small Double Duke Ortho Mattress

was

~~£230~~

Now

£210

4’6″ Double Duke Ortho Mattress

was

~~£230~~

Now

£210

2’6″ Small Single Snooze Easy Mattress

was

~~£270~~

Now

£250

5’0″ King Size Duke Ortho Mattress

was

~~£260~~

Now

£240

3’0″ Single Cosy Slumber Mattress

was

~~£413~~

Now

£373

4’6″ Double Snooze Easy Mattress

was

~~£390~~

Now

£370

5’0″ King Size Snooze Easy Mattress

was

~~£440~~

Now

£400

2’6″ Small Single Cosy Slumber Mattress

was

~~£413~~

Now

£373

4’0″ Small Double Cosy Slumber Mattress

was

~~£563~~

Now

£523

4’6″ Double Cosy Slumber Mattress

was

~~£563~~

Now

£523

5’0″ King Size Cosy Slumber Mattress

was

~~£730~~

Now

£670

2’6″ Small Single Ironstone 2000 Mattress

was

~~£870~~

Now

£636

2’6″ Small Single Rosaline Mattress

was

~~£720~~

Now

£340

3’0″ Single Rosaline Mattress

was

~~£720~~

Now

£340

4’6″ Double Gel Essence Ortho Mattress

was

~~£897~~

Now

£657

2’6″ Small Single Hinton Mattress

was

~~£1,310~~

Now

£726

3’0″ Single Hinton Mattress

was

~~£1,310~~

Now

£726

2’6″ Small Single Pocket Superior 4000 Mattress

was

~~£860~~

Now

£860

3’0″ Single Ironstone 2000 Mattress

was

~~£870~~

Now

£636

3’0″ Single Gel Plush Ortho Mattress

was

~~£870~~

Now

£630

4’0″ Small Double Gel Essence Ortho Mattress

was

~~£897~~

Now

£657

4’6″ Double Gel Essence Ortho Mattress

was

~~£897~~

Now

£657

4’0″ Small Double Hinton Mattress

was

~~£1,550~~

Now

£850

4’6″ Double Hinton Mattress

was

~~£1,550~~

Now

£850

2’6″ Small Single Ruby 2000 Mattress

was

~~£1,230~~

Now

£781

5’0″ King Size Gel Essence Ortho Mattress

was

~~£1,044~~

Now

£744

5’0″ King Size Hinton Mattress

was

~~£1,745~~

Now

£947

3’0″ Single Flora Sleep 1000 Mattress

was

~~£1,080~~

Now

£980

4’6″ Double Pocket Superior 4000 Mattress

was

~~£1,180~~

Now

£1,180

4’0″ Small Double Pocket Superior 4000 Mattress

was

~~£1,180~~

Now

£1,180

4’0″ Small Double Gel Plush Ortho Mattress

was

~~£1,200~~

Now

£900

4’6″ Double Gel Plush Ortho Mattress

was

~~£1,200~~

Now

£900

6’0″ Super King Gel Plush Ortho Mattress

was

~~£1,630~~

Now

£1,180

4’0″ Small Double Ironstone 2000 Mattress

was

~~£1,240~~

Now

£912

4’6″ Double Ironstone 2000 Mattress

was

~~£1,240~~

Now

£912

3’0″ Single Opal Ice Mattress

was

~~£1,350~~

Now

£1,350

5’0″ King Size Gel Plush Ortho Mattress

was

~~£1,360~~

Now

£1,060

5’0″ King Size Pocket Superior 4000 Mattress

was

~~£1,360~~

Now

£1,360

4’0″ Small Double Ruby 2000 Mattress

was

~~£1,740~~

Now

£1,118

4’6″ Double Ruby 2000 Mattress

was

~~£1,740~~

Now

£1,118

5’0″ King Size Ironstone 2000 Mattress

was

~~£1,440~~

Now

£1,052

6’0″ Super King Hinton Mattress

was

~~£2,345~~

Now

£1,257

3’0″ Single Deluxe Natural Mattress

was

~~£1,987~~

Now

£1,787

4’0″ Small Double Flora Sleep 1000 Mattress

was

~~£1,510~~

Now

£1,360

4’6″ Double Flora Sleep 1000 Mattress

was

~~£1,510~~

Now

£1,360

5’0″ King Size Ruby 2000 Mattress

was

~~£1,970~~

Now

£1,279

6’0″ Super King Gel Plush Ortho Mattress

was

~~£1,630~~

Now

£1,180

4’0″ Small Double Deluxe Natural Mattress

was

~~£2,209~~

Now

£1,959

4’6″ Double Deluxe Natural Mattress

was

~~£2,209~~

Now

£1,959

6’0″ Super King Pocket Superior 4000 Mattress

was

~~£1,650~~

Now

£1,650

5’0″ King Size Flora Sleep 1000 Mattress

was

~~£1,670~~

Now

£1,520

5’0″ King Size Deluxe Natural Mattress

was

~~£2,368~~

Now

£2,118

4’6″ Double Bamboo Fresh 4000 Mattress

was

~~£1,794~~

Now

£1,344

4’0″ Small Double Opal Ice Mattress

was

~~£1,830~~

Now

£1,830

4’6″ Double Opal Ice Mattress

was

~~£1,830~~

Now

£1,830

6’0″ Super King Ruby 2000 Mattress

was

~~£2,410~~

Now

£1,537

5’0″ King Size Bamboo Fresh 4000 Ottoman Bed

was

~~£3,762~~

Now

£3,012

6’0″ Super King Deluxe Natural Mattress

was

~~£2,827~~

Now

£2,577

5’0″ King Size Opal Ice Mattress

was

~~£2,280~~

Now

£2,280

6’0″ Super King Opal Ice Mattress

was

~~£2,870~~

Now

£2,870

See More Firm Mattresses

What is a firm mattress?

A firm mattress is a type of mattress that provides a high level of support and typically has a minimal amount of cushioning. Firm mattresses are designed to keep the body in a relatively flat position, which can help keep the spine aligned and prevent it from sinking into the mattress. A firm mattress is rated a ‘4’ on our scale of firmness, with 1 being softest and 5 being the firmest.

Is a firm mattress better for back pain?

Firm mattresses are often recommended for people who have back pain, as they can provide a supportive surface that keeps the spine in a neutral position.

What is the best firm mattress?

The best firm mattress for you will depend on your personal preferences, your sleeping position and whether or not you have back problems. For the ultimate comfort, we recommend hybrid firm mattresses which contain both memory foam and pocket springs, such as our 5’0″ King Size Bamboo Fresh 4000 Mattress.

Are firm mattresses good for side sleepers?

Firm mattresses are generally not recommended for side sleepers. When sleeping on your side, your body's weight is concentrated on the hips and shoulders, and a firm mattress may not provide enough give to properly cushion these areas, which can result in uncomfortable pressure points. We would recommend a medium or medium firm mattress for side sleepers.

Buy firm mattresses and more with Sussex Beds

Browse our full range of firm mattresses online, or take a look at our soft medium, medium, medium firm or extra firm options. UK delivery, assembly service and disposal of existing furniture services available.