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100 Night Sleep Trial on ALL mattresses!
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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
(188)
(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 Tomorrow, 6th December

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.

Your order helps us plant trees

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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 227 reviews
Trustpilot star rating
Quality of product
4.8 / 5
Comfort Rating
4.9 / 5
Value for Money
4.9 / 5
83%
15%
1%
1%
1%

Customer Review Summary

Customers have largely praised the mattress for its exceptional comfort and support, leading to noticeable improvements in their overall sleep quality. Many appreciate the high-quality materials used in its construction, which adds to its durability and luxurious feel. However, some users found it to be firmer than they expected, though this has been viewed positively by others who enjoy the supportive nature. Overall, the product is well-regarded for enhancing sleep experiences and providing a solid value.

Excellent Comfort
Firm Support
High Durability
Luxurious Feel
Improved Sleep Quality
Heavy Weight
Firmer Than Expected
Trustpilot Star rating Verified

Have had sealy mattresses previously.This mattress is supportive and comfortable.Would recommend to anyone wanting medium firm comfort

Jacquie Roberts 20th Oct
Trustpilot Star rating Verified

Very satisfied.Especially the price as a lot more than others companies. Well made.Medium firm matress and a comfortable nights sleep. Highly recommended manufacturer and company who supplied.

Michael Clark 16th Oct
Trustpilot Star rating Verified

Got a super deal on this mattress and glad that I bought it, my daughter sleeps better now thanks to this mattress!

Nicholas Kay 14th Oct
Trustpilot Star rating Verified

Very comfortable!

Krishan Pandoo 13th Oct
Trustpilot Star rating Verified

Mattress very comfortable. Excellent service with good communication. Would highly recommend.

Maureen 29th Sep
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

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Sealy Advantage Classic Mattress

Sealy Advantage Classic Mattress

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