Double-Sided Mattresses - Free Delivery - MattressOnline

Excellent

69,341reviews on

The Sleep Journal

Menu

Trade Stores Wishlist

About Us Delivery Help Centre Our Experts Advice The Sleep Journal Contact Us

View all Mattresses

Need some help?

What Mattress Firmness Is Right for Me?The Best Mattress for Each Sleeping Position

Superking Mattresses6' x 6'6" / 180cm x 200cm King Size Mattresses5' x 6'6" / 150cm x 200cm Double Mattresses4'6" x 6'3" / 135cm x 190cm Small Double Mattresses4' x 6'3" / 120cm x 190cm Single Mattresses3' x 6'3" / 90cm x 190cm Small Single Mattresses2'6" x 6'3" / 75cm x 190cm European Size Mattresses All Mattresses

Pocket Sprung MattressesIndividual, responsive springs Standard Sprung MattressesOpen coil and Miracoil springs Memory Foam MattressesMoulds to your body shape Hybrid MattressesSprung support with foam comfort Latex MattressesNatural support & pressure relief Gel MattressesDesigned for a cooler sleep Natural & Organic MattressesBreathable and premium comfort Orthopaedic Mattresses Hypoallergenic & Anti-Allergy Mattresses Eco Mattresses Kids Mattresses Pillow Top Mattresses Zip & Link Superking Mattresses Rolled Mattresses Next Day Delivery Mattresses All Mattresses

Extra Firm Mattresses Firm Mattresses Medium Firm Mattresses Medium Mattresses Soft to Medium Mattresses All Mattresses

Need some help?

Bed & Mattress Size Guide Bed Buying Guide

Superking Beds6' x 6'6" / 180cm x 200cm King Size Beds5' x 6'6" / 150cm x 200cm Double Beds4'6" x 6'3" / 135cm x 190cm Small Double Beds4' x 6'3" / 120cm x 190cm Single Beds3' x 6'3" / 90cm x 190cm All Beds

Bed Frames Divan Beds Storage Beds Ottoman Beds Sofa Beds TV Beds Kids Beds Next Day Delivery Beds Guest Beds Headboards All Beds

Silentnight Elle Decoration Novo Jay-Be Birlea Vogue LPD Flintshire Furniture Friendship Mill All Beds

Wooden Bed Frames Upholstered Bed Frames Metal Bed Frames All Beds

View all Bedding

Need some help?

Pillow Buying Guide Duvet Buying Guide All About Mattress Toppers

Memory Foam Pillows Latex Pillows Natural Pillows Hollowfibre Pillows Gel Pillows Cooling Pillows Hypoallergenic & Anti-Allergy Pillows View all Pillows

4.5 Tog Duvets 7.5 Tog Duvets 10.5 Tog Duvets 13.5 Tog Duvets 15 Tog Duvets View all Duvets

Waterproof Mattress ProtectorsProtection against spills and accidents Hypoallergenic & Anti-Allergy Mattress ProtectorsProtects against allergens and dust mites Quilted Mattress ProtectorsA stylish and comforting finish Cooling Mattress ProtectorsProtection and cooling in one View all Mattress Protectors

Memory Foam Mattress ToppersComfort tailored to your body shape Gel Mattress ToppersExtra pressure relief and cooling comfort Natural Mattress ToppersNaturally breathable with plush fillings Hypoallergenic Mattress ToppersExtra comfort and allergy protection View all Mattress Toppers

Weighted BlanketsSoothing weight to promote relaxation Electric BlanketsKeep warm and cosy in the colder months View all Blankets

Boxing Day Sale - Save up to 60% Off RRP*

Discounted end-of-range-products

View all Brands

Need some help?

What Mattress Firmness is Right for Me?Bed Buying Guide Pillow Buying Guide

Silentnight Sleepeezee Sealy Hypnos Harrison Spinks Millbrook Beds Emma TEMPUR Simba Relyon SleepSoul Wentworth Mercer Rest Assured Luna Elle Decoration Novo All Brands

Superking Mattresses6' x 6'6" / 180cm x 200cm King Size Mattresses5' x 6'6" / 150cm x 200cm Double Mattresses4'6" x 6'3" / 135cm x 190cm Small Double Mattresses4' x 6'3" / 120cm x 190cm Single Mattresses3' x 6'3" / 90cm x 190cm Small Single Mattresses2'6" x 6'3" / 75cm x 190cm European Size Mattresses

Pocket Sprung MattressesIndividual, responsive springs Standard Sprung MattressesOpen coil and Miracoil springs Memory Foam MattressesMoulds to your body shape Hybrid MattressesSprung support with foam comfort Latex MattressesNatural support & pressure relief Gel MattressesDesigned for a cooler sleep Natural & Organic MattressesBreathable and premium comfort

Orthopaedic Mattresses Hypoallergenic & Anti-Allergy Mattresses Eco Mattresses Kids Mattresses Pillow Top Mattresses Zip & Link Superking Mattresses Rolled Mattresses Next Day Delivery Mattresses

Shop by Firmness

Extra Firm Mattresses Firm Mattresses Medium Firm Mattresses Medium Mattresses Soft to Medium Mattresses

Need help?|What Mattress Firmness Is Right for Me?The Best Mattress for Each Sleeping Position

Superking Beds6' x 6'6" / 180cm x 200cm King Size Beds5' x 6'6" / 150cm x 200cm Double Beds4'6" x 6'3" / 135cm x 190cm Small Double Beds4' x 6'3" / 120cm x 190cm Single Beds3' x 6'3" / 90cm x 190cm

Bed Frames Divan Beds Storage Beds Ottoman Beds Sofa Beds TV Beds Kids Beds Next Day Delivery Beds Guest Beds Headboards

Silentnight Elle Decoration Novo Jay-Be Birlea Vogue LPD Flintshire Furniture Friendship Mill

Shop by Material

Wooden Bed Frames Upholstered Bed Frames Metal Bed Frames

Need help?|Bed & Mattress Size Guide Bed Buying Guide

Memory Foam Pillows Latex Pillows Natural Pillows Hollowfibre Pillows Gel Pillows Cooling Pillows Hypoallergenic & Anti-Allergy Pillows

4.5 Tog Duvets 7.5 Tog Duvets 10.5 Tog Duvets 13.5 Tog Duvets 15 Tog Duvets

Mattress Protectors

Waterproof Mattress ProtectorsProtection against spills and accidents Hypoallergenic & Anti-Allergy Mattress ProtectorsProtects against allergens and dust mites Quilted Mattress ProtectorsA stylish and comforting finish Cooling Mattress ProtectorsProtection and cooling in one

Mattress Toppers

Memory Foam Mattress ToppersComfort tailored to your body shape Gel Mattress ToppersExtra pressure relief and cooling comfort Natural Mattress ToppersNaturally breathable with plush fillings Hypoallergenic Mattress ToppersExtra comfort and allergy protection

Weighted BlanketsSoothing weight to promote relaxation Electric BlanketsKeep warm and cosy in the colder months

Need help?|Pillow Buying Guide Duvet Buying Guide All About Mattress Toppers

Boxing Day Sale - Save up to 60% Off RRP*

Discounted end-of-range-products

Need help?|What Mattress Firmness is Right for Me?Bed Buying Guide Pillow Buying Guide

Your Basket

Your basket is empty :(

Why not browse our product ranges?

Mattresses Beds Pillows Duvets Mattress Protectors Mattress Toppers

Free delivery to most locations

Free 60-night mattress trial

Old mattress removal service

Boxing Day Sale - Save up to 60% Off RRP*

Home
Mattresses
Double-Sided Mattresses

21-40 of 66 products

Relevance
Biggest Saving
Highest Price
Lowest Price

21-40 of 66 products

Filters

Superking

(53)

6' x 6'6" | 180cm x 200cm

King Size

(59)

5' x 6'6" | 150cm x 200cm

Double

(58)

4'6" x 6'3" | 135cm x 190cm

Small Double

(49)

4' x 6'3" | 120cm x 190cm

Single

(66)

3' x 6'3" | 90cm x 190cm

Small Single

(8)

2'6" x 6'3" | 75cm x 190cm

Emperor

(7)

6'6" x 6'6" | 200cm x 200cm

Superking Zip and Link

(12)

6' x 6'6" | 180cm x 200cm

European King Size

(10)

5'3" x 6'6" | 160cm x 200cm

European Double

(7)

4'7" x 6'6" | 140cm x 200cm

Single Short

(1)

3' x 5'9" | 90cm x 175cm

Small Single Short

(1)

2'6" x 5'9" | 75cm x 175cm

Extra Firm

(9)

Firm

(16)

Medium to Firm

(16)

Medium

(17)

Soft to Medium

(8)

Pocket Sprung

(51)

Standard Sprung

(14)

Miracoil

(1)

Posturepedic

(2)

Memory Foams

(7)

Natural Fibres

(33)

Gel Foams

(1)

Soft White Fibres

(24)

Standard Foam

(1)

Orthopaedic

(15)

Rolled Up

(6)

Single-Sided Mattress

(9)

Double-Sided Mattress

(52)

Hypoallergenic

(15)

Childrens

(4)

Contract Mattress

(3)

Luxury Mattress

(27)

Eco Friendly

(14)

Silentnight

(6)

Sleepeezee

(6)

Sealy

(5)

Hypnos

(6)

Harrison Spinks

(1)

Millbrook Beds

(7)

Relyon

(3)

Wentworth Mercer

(9)

Rest Assured

(1)

Mattress Online

(4)

Mlily

(1)

Uno

(1)

Jay-Be

(2)

Romantica

(3)

Bodyshape

(5)

Aspire

(4)

Gainsborough

(2)

£0 - £500

(130)

£500 - £1000

(115)

£1000 - £1500

(50)

£1500 - £2000

(20)

£2000 - £2500

(5)

£2500 - £3000

(7)

£3000 - £3500

(2)

£3500 - £4000

(2)

Wentworth Mercer Natural Pocket 1500 Mattress

60-night comfort trial

RRP £595.00

Rest Assured Adleborough 1400 Pocket Ortho Mattress

Soft White Fibres

60-night comfort trial

RRP £454.00

Jay-Be Sleep Smart e-Pocket Childrens Bunk Mattress

Soft White Fibres

60-night comfort trial

RRP £200.00

Silentnight Sofia 1200 Mirapocket Mattress

Mirapocket Springs

Eco Comfort Fibre

60-night comfort trial

RRP £483.00

Millbrook Wool Ortho 1000 Pocket Mattress

60-night comfort trial

RRP £620.91

Sleepeezee Centurial 02 6000 Pocket Mattress

60-night comfort trial

RRP £1,709.00

Millbrook Smooth Tech Ultra 10000 Pocket Mattress

60-night comfort trial

RRP £1,965.43

Sleepeezee Wool Luxe 2800 Pocket Mattress

60-night comfort trial

RRP £849.00

Hypnos Wheatley Supreme Wool Mattress

60-night comfort trial

RRP £3,387.00

Silentnight Plant Based Box Top 1800 Pocket Mattress

Mirapocket Springs

60-night comfort trial

RRP £926.00

Sealy Mellbreak Ortho Plus Mattress

PostureTech Core Support Springs

Soft White Fibres

60-night comfort trial

RRP £519.00

Millbrook Wool Luxury 4000 Pocket Mattress

60-night comfort trial

RRP £961.80

Romantica Adagio Extra Firm Mattress

Traditional Open Coil Springs

Soft White Fibres

60-night comfort trial

Sleepeezee Jessica 800 Pocket Support Mattress

60-night comfort trial

RRP £659.00

Hypnos Marlow Ortho Deluxe Mattress

60-night comfort trial

RRP £1,645.00

Wentworth Mercer Natural Pocket 2000 Ortho Mattress

60-night comfort trial

RRP £748.00

Sleepeezee Deluxe 1000 Pocket Mattress

Soft White Fibres

60-night comfort trial

RRP £399.00

Aspire Natural Cashmere and Silk 3000 Pocket Mattress

60-night comfort trial

RRP £389.00

Relyon Prairie 1000 Pocket Mattress

Soft White Fibres

60-night comfort trial

RRP £603.00

Sealy Steeple Ortho Plus Mattress

PostureTech Core Support Springs

Soft White Fibres

60-night comfort trial

RRP £599.00

21-40 of 66 products

1

2

3

4

Sales Enquiries

Mon-Sat: 9:30am - 5:30pm

Sunday: 10am - 4pm

Customer Service

Mon-Sat: 9:30am - 5:30pm

Sunday: 10am - 4pm

[email protected]

Good Retail Sustainability Awards 2022

Proudly Supporting the Sleep Charity

Proudly Supporting Zarach

Visa Payments

Mastercard Payments

PayPal Payments

Apple Pay Payments

Google Pay Payments

Klarna Payments

Useful Links

Advice
Contact Us
Delivery
60-Night Mattress Comfort Trial
Mattress Recycling
Our Independent Reviews
Our Awards
Our Experts
The Sleep Journal
About Us
Careers
Press Enquiries
Trade
Visit Our Stores
Help Centre

Popular Categories

Sale
All Mattresses
Double Mattresses
King Size Mattresses
Single Mattresses
Pocket Sprung Mattresses
Memory Foam Mattresses
Orthopaedic Mattresses
Silentnight
Next Day Mattresses

© 2025 MattressOnline.co.uk Ltd|VAT Reg: 838851683|Terms & Conditions|Privacy Policy|Sitemap

MattressOnline.co.uk Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 923012) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply.