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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 free next day delivery and a 60-Night Comfort Trial.

1-20 of 64 products

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Sealy Mellbreak Ortho Plus Mattress
4.6
4.6 out of 5 filled stars
1,605
Firm
PostureTech Core Support Springs
Soft White Fibres
In the Sale
Up to 40% Off
From£307.70

Was £324.95

RRP £519.00

Free Delivery
Millbrook Wool Ortho 1000 Pocket Mattress
4.6
4.6 out of 5 filled stars
511
Firm
Pocket Springs
Wool
In the Sale
Up to 50% Off
From£293.44

Was £369.95

RRP £589.99

Free Delivery
Sealy Posturepedic Elevate Blackwood Mattress
4.7
4.7 out of 5 filled stars
65
Firm
AlignSupport Coil Springs
Reflex Foam
In the Sale
Up to 50% Off
From£635.24

Was £759.95

RRP £1,299.00

Free Delivery
SleepSoul Luna Posturezone 1000 Pocket Ortho Mattress
4.7
4.7 out of 5 filled stars
42
Firm
Pocket Springs
Reflex Foam
In the Sale
Up to 55% Off
From£243.88

Was £299.95

RRP £549.99

Free Delivery
SleepSoul Celest 3000 Pocket Pillow Top Mattress
New In
We're Collecting Reviews
Firm
Pocket Springs
Memory Foam
In the Sale
Up to 60% Off
From£467.46

Was £549.95

RRP £1,184.99

Free Delivery
Mlily Bamboo+ Ortho Memory 800 Pocket Mattress
4.4
4.4 out of 5 filled stars
12
Firm
Pocket Springs
Memory Foam
In the Sale
Up to 60% Off
From£198.77

Was £259.95

RRP £520.00

Free Delivery
SleepSoul Space 4000 Pocket Orthopaedic Gel Mattress
4.8
4.8 out of 5 filled stars
11
Firm
Pocket Springs
Gel Foam
In the Sale
Up to 40% Off
From£503.44

Was £534.95

RRP £899.99

Free Delivery
Silentnight Seoul Miracoil Memory Mattress
4.6
4.6 out of 5 filled stars
409
Firm
Miracoil Springs
Memory Foam
In the Sale
Up to 25% Off
From£256.44

Was £269.95

RRP £352.00

Free Delivery
Relyon Luxury Pashmina 2350 Pocket Mattress
4.8
4.8 out of 5 filled stars
35
Firm
Pocket Springs
Pashmina
In the Sale
Up to 40% Off
From£673.57

Was £719.95

RRP £1,137.00

Free Delivery
Wentworth Mercer Natural Pocket 2000 Mattress
4.5
4.5 out of 5 filled stars
4
Firm
Pocket Springs
Cashmere
In the Sale
Up to 35% Off
From£422.49

Was £499.95

RRP £680.00

Free Delivery
Silentnight UltraGel 1400 Mirapocket Mattress
New In
We're Collecting Reviews
Firm
Mirapocket Springs
UltraGel
In the Sale
Up to 25% Off
From£436.71

Was £469.95

RRP £589.00

Free Delivery
Relyon Orthofirm 800 Pocket Mattress
4.5
4.5 out of 5 filled stars
23
Firm
Pocket Springs
Soft White Fibres
In the Sale
Up to 40% Off
From£372.27

Was £394.95

RRP £621.00

Free Delivery
Harrison Spinks Quilted Fusion 4000 Pocket Mattress
4.8
4.8 out of 5 filled stars
6
Firm
Pocket Springs
Soft White Fibres
In the Sale
Up to 35% Off
From£749.26

Was £794.95

RRP £1,169.00

Free Delivery
KomfiMed Ortho Firm Mattress
We're Collecting Reviews
Firm
Reflex Foam
TrueGel Technology
In the Sale
Up to 35% Off
From£481.11

Was £509.95

RRP £775.00

Free Delivery
Silentnight UltraGel Cool-to-Touch 3000 Mirapocket Firmer Mattress
New In
We're Collecting Reviews
Firm
Mirapocket Springs
UltraGel
In the Sale
Up to 25% Off
From£663.83

Was £719.95

RRP £879.00

Free Delivery
Hypnos Hemsworth Support Mattress
4.6
4.6 out of 5 filled stars
30
Firm
Pocket Springs
Cotton
In the Sale
Up to 50% Off
From£484.38

Was £589.95

RRP £1,025.00

Free Delivery
Sealy Harlow Ortho Plus Mattress
4.5
4.5 out of 5 filled stars
384
Firm
PostureTech Core Support Springs
Soft White Fibres
Up to 20% Off
From£314.95

RRP £419.00

Free Delivery
Relyon Cerrado 1000 Pocket Pillow Top Mattress
4.5
4.5 out of 5 filled stars
8
Firm
Pocket Springs
Cashmere
Up to 25% Off
From£479.95

RRP £657.00

Free Delivery
Millbrook Wool Ortho 1000 Pillow Top Mattress
5.0
5 out of 5 filled stars
1
Firm
Pocket Springs
Wool
Up to 30% Off
From£399.95

RRP £599.40

Free Delivery
Sealy Eaglesfield Memory Ortho Plus Mattress
4.5
4.5 out of 5 filled stars
246
Firm
PostureTech Core Support Springs
Memory Foam
Up to 30% Off
From£374.95

RRP £549.00

Free Delivery
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