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100 Night Sleep Trial on ALL mattresses!
Sleep Expert
Sealy

Natasha Bennett

Sales Training Development Manager, Sealy

What the Sleep Expert thinks...

"PostureTech CoreSupport springs adapt in real time, lifting hips and shoulders while a zoned foam layer cushions pressure points. The result is a balanced medium feel that hugs, supports, and isolates movement so you and your partner wake recharged, not disturbed. This technology makes the Advantage Classic perfect for couples, but also for anyone looking to improve their posture as they sleep."

The Sealy Advantage Classic mattress combines supportive springs and layers of zoned foam for a blissful night’s sleep.

Inside this mattress is Sealy's unique PostureTech Core Support spring system. The springs are weight responsive and get firmer as pressure increases to offer deep down support that’s long-lasting.

The zoned foam layer targets the key areas of your body and applies support where you need it the most.

Finished with a quilted sleep surface, the mattress offers luxurious comfort night after night.

The mattress is also single sided. Simply rotate it from time to time to improve its lifespan.

1277956-5056074994580

PostureTech CS Springs icon
PostureTech CS Springs
The unique PostureTech springs respond to your body weight to provide deep down support. As your body relaxes into the mattress and pressure is applied, the springs target the key areas of your body to offer support where you need it most. Not forgetting, the springs are twice tempered, making them resilient and trustworthy over time.
Reflex Foam icon
Reflex Foam
Used together with springs, or as the support layer in all-foam mattresses, Relfex Foam is versatile and comfortably supportive.
24cm Depth icon
24cm Depth
This mattress is approximately 24cm deep.
Quilted Cover icon
Quilted Cover
The quilted cover is created by stitching the mattress cover and the fillings together, creating a patterned comfort quilt layer.
Orthopaedic Support icon
Orthopaedic Support
Designed to offer a firmer sleep surface, providing targeted support for your back and joints.
Reinforced Edges icon
Reinforced Edges
The mattress has reinforced edges, so that the full sleep surface can be used. This means more sleeping space - which is usually lost in conventional, less edge-stable mattresses.
No Need To Turn icon
No Need To Turn
A single-sided mattress which does not need to be turned/flipped. One-sided mattresses should, however, be rotated head to toe regularly.
Pressure Relieving icon
Pressure Relieving
This type of mattress gives maximum pressure relief, allowing your body weight to spread across it evenly. This ultimately means less tossing and turning throughout the night and a more relaxing and restful sleep.
Hypoallergenic icon
Hypoallergenic
Being hypoallergenic, this is the perfect item for allergy sufferers - or anyone looking for a healthy night's sleep.
Made in The UK icon
Made in The UK
This item has been manufactured in the UK.

Additional features

  • Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.

We provide our award-winning Free Next Day Delivery service to most locations, sending a proper night’s sleep out far and wide. Hassle-free and convenient, you can even choose a time and day that suits you, have us take your old mattress away for recycling, and get us to deliver to your room of choice!

In some places, a small fee will be charged to help us get you your best night’s rest as quickly as possible. Take a look at the following postcodes to see if this applies to you, and if you’re not sure, then use our helpful Postcode Checker to help you shop with confidence.

  • AB10-AB16, AB21-AB25, AB30-AB39, AB41-AB45, AB51-AB56
  • CA1-CA9
  • DD1-DD11
  • DG1-DG14, DG16
  • EH1-EH49, EH51-EH55, EH91, EH95, EH99
  • FK1-FK21
  • G1-G5, G9, G11-G15, G20-G23, G31-G34, G40-G46, G51-G53, G58, G60-G79, G18-G84, G90
  • IV1-IV19, IV30-IV32, IV36
  • KA1-KA30
  • KY1-KY16, KY99
  • LA1-LA7
  • ML1-ML12
  • PH1-PH26
  • TD1-TD15
100 Night Sleep Trial icon
100 Night Sleep Trial
Finding the perfect mattress shouldn't be stressful. That's why we offer a generous 100-night sleep trial. Snuggle in and test it out for at least 50 nights. If it's not your perfect match we’ll offer you an exchange for a mattress that you love even more.

Sealy 5 Year Guarantee

In the unlikely event of a defect in material or workmanship occurring within the 5 year guarantee period, we will arrange to repair or replace the item under complaint free of charge at our discretion.

Download warranty/guarantee information

Highly Rated

Sealy Advantage Classic Mattress

4.8 out of 5
(183)
(33)
(2)
(2)
(2)
PostureTech CS Springs
Reflex Foam
24cm Depth
Quilted Cover
Orthopaedic Support
Firmness: Medium
100 Night Sleep Trial
£299
RRP £689
Save £390
57% off
from £299
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Single
3' x 6'3"
Lightning Deal
£299
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Small Double
4' x 6'3"
Lightning Deal
£369
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Double
4'6" x 6'3"
Lightning Deal
£369
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King Size
5' x 6'6"
Lightning Deal
£399
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Super King
6' x 6'6"
Lightning Deal
£519
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Free Delivery in Next Day

Free delivery Sunday, 21st September
Order within 15hrs 19mins 9secs

Place your order now and we'll contact you to arrange delivery when your order is ready for despatch. You can then choose our popular next day delivery or select a day & time of your choice and get delivery when it's convenient for you.

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Sealy Sleep Expert

See what the Sleep Expert thinks about this product. Find out

Sleep Expert

Rated Excellent

4.8/5
based on 222 reviews
Trustpilot star rating
Quality of product
4.8 / 5
Comfort Rating
4.9 / 5
Value for Money
4.9 / 5
82%
15%
1%
1%
1%

Customer Review Summary

The Sealy mattress is widely commended for its blend of comfort and firmness, ensuring quality, restful nights of sleep. Its reliable build guarantees great value for money, with durability and a medium firmness level praised by many customers. A few reviewers encountered a strong smell upon unpacking, although this tended to dissipate after some airing. It may lack of handles for easy manoeuvring. Nevertheless, it is often described as a worthwhile investment due to its high standard of quality and its reasonable price. Many customers also highlighted the excellent delivery service.

Comfort
Firmness
Value
Durability
Quality
Delivery
Manoeuvrability
Smell
Trustpilot Star rating Verified

Fantastic quality and service speedy with lots of correspondence. Second mattress from this company now and will never go anywhere else.

Leanne Upchurch 3rd Sep
Trustpilot Star rating Verified

Great priced mattress and easy delivery

Grant Edmead 3rd Sep
Trustpilot Star rating Verified

Lovely comfortable mattress, delivery arrived on time. Perfect.

Carol Clayton 21st Aug
Trustpilot Star rating Verified

Looks well finished and has good support without being to firm. Well pleased with the product and service.

Stephen Mullin 9th Aug
Trustpilot Star rating Verified

This is a great mattress, fed up of over heating on memory foam? or mattresses that are so high you cant get a fitted sheet on? this is an extremely comfortable more traditional mattress, just like they used to betheres a reason there are so many good reviews.

Read moreless
Jenny Devine 5th Aug
Trustpilot Star rating Verified

Great quality and very comfortable

Louise Evans 4th Aug

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Sealy Advantage Classic Mattress

Sealy Advantage Classic Mattress

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