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Firm Mattresses

Firm mattresses offer solid, stable support - perfect for front and back sleepers. Find your open coil, memory foam or orthopaedic match today. Shop top UK brands like Silentnight and Sealy with a 60-Night Comfort Trial and free next day delivery.

1-20 of 67 products

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Sealy Posturepedic Elevate Blackwood Mattress
4.8
4.8 out of 5 filled stars
101
Firm Icon
Firm
AlignSupport Coil Springs
Reflex Foam
Star Buy
Up to 40% Off
From£722.49

RRP £1,299.00

Free Delivery
SleepSoul Premium Cool Gel 1000 Pocket Mattress
4.0
4 out of 5 filled stars
3
Firm Icon
Firm
Pocket Springs
Gel Foam
I'm in the Sale!
Up to 60% Off
From£235.94

RRP £629.99

Free Delivery
KomfiMed Ortho Firm Mattress
1.0
1 out of 5 filled stars
1
Firm Icon
Firm
Reflex Foam
TrueGel Technology
I'm in the Sale!
Up to 35% Off
From£484.45

RRP £775.00

Free Delivery
SleepSoul Luna Posturezone 1000 Pocket Ortho Mattress
4.7
4.7 out of 5 filled stars
46
Firm Icon
Firm
Pocket Springs
Reflex Foam
I'm in the Sale!
Up to 45% Off
From£344.21

RRP £649.99

Free Delivery
Hypnos Hemsworth Support Mattress
4.7
4.7 out of 5 filled stars
39
Firm Icon
Firm
Pocket Springs
Cotton
I'm in the Sale!
50% Off
Superking£788.54

RRP £1,702.00

Free Delivery
SleepSoul Luna 1500 Ortho Pillow Top Mattress
5.0
5 out of 5 filled stars
4
Firm Icon
Firm
Pocket Springs
Memory Foam
I'm in the Sale!
Up to 35% Off
From£336.16

RRP £509.99

Free Delivery
Bodyshape Ortho Memory Foam Mattress
4.5
4.5 out of 5 filled stars
345
Firm Icon
Firm
Reflex Foam
Memory Foam
Star Buy
Up to 50% Off
From£164.59

RRP £339.99

Free Delivery
Komfi Unity Deluxe Mattress
4.1
4.1 out of 5 filled stars
8
Firm Icon
Firm
Reflex Foam
Reflex Foam
Star Buy
Up to 30% Off
From£121.59

RRP £175.00

Free Delivery
Copper Fresh Envy Supreme Mattress
We're Collecting Reviews
Firm Icon
Firm
Pocket Springs
Memory Foam
I'm in the Sale!
Up to 40% Off
From£497.36

RRP £799.00

Free Delivery
Silentnight Lift Replenish 2000 Pocket Firm Mattress
4.0
4 out of 5 filled stars
4
Firm Icon
Firm
Mirapocket Springs
Latex
I'm in the Sale!
Up to 30% Off
From£567.83

RRP £827.00

Free Delivery
Silentnight Athens 1400 Mirapocket Ortho Mattress
4.6
4.6 out of 5 filled stars
649
Firm Icon
Firm
Mirapocket Springs
Eco Comfort Fibre
Up to 20% Off
From£324.95

RRP £407.00

Free Delivery
Sealy Alford Advantage Mattress
4.6
4.6 out of 5 filled stars
747
Firm Icon
Firm
PostureTech Core Support Springs
Soft White Fibres
Up to 25% Off
From£314.95

RRP £429.00

Free Delivery
Relyon Orthofirm Deluxe 800 Pocket Mattress
4.5
4.5 out of 5 filled stars
23
Firm Icon
Firm
Pocket Springs
Soft White Fibres
Up to 30% Off
From£435.00

RRP £621.00

Free Delivery
Mlily Bamboo+ Superb Ortho Memory 2500 Pocket Mattress
4.7
4.7 out of 5 filled stars
63
Firm Icon
Firm
Pocket Springs
Memory Foam
Up to 45% Off
From£344.95

RRP £685.00

Free Delivery
Relyon Memory Plus 1800 Pocket Mattress
3.0
3 out of 5 filled stars
4
Firm Icon
Firm
Pocket Springs
Memory Foam
Last Chance!
40% Off
King Size£884.95

RRP £1,499.00

Free Delivery
Silentnight Healthy Growth Eco Bunk Mattress
4.7
4.7 out of 5 filled stars
305
Firm Icon
Firm
Traditional Open Coil Springs
Eco Comfort Fibre
Single£179.95
Free Delivery
Silentnight Eco Comfort Airmesh 2000 Pillow Top Mattress
4.4
4.4 out of 5 filled stars
7
Firm Icon
Firm
Mirapocket Springs
Airmesh
Up to 5% Off
From£524.95

RRP £569.00

Free Delivery
Mlily Bamboo+ Ortho Memory 800 Pocket Mattress
4.4
4.4 out of 5 filled stars
17
Firm Icon
Firm
Pocket Springs
Memory Foam
Up to 50% Off
From£249.95

RRP £520.00

Free Delivery
Bodyshape Vitality Memory Foam Ortho Mattress
5.0
5 out of 5 filled stars
1
Firm Icon
Firm
Reflex Foam
Memory Foam
Up to 20% Off
From£189.00

RRP £230.00

Free Delivery
Sleepeezee Deluxe 1000 Pocket Mattress
4.5
4.5 out of 5 filled stars
818
Firm Icon
Firm
Pocket Springs
Soft White Fibres
Up to 20% Off
From£309.95

RRP £399.00

Free Delivery
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