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- Made by an NBF-Approved ManufacturerPeace of mind and reassurance - the manufacturer of this item is an approved member of the National Bed Federation.
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Features you'll love
Support System
Open Coil Springs
Lattice shaped high tensile steel springs give a traditional, durable support.
Comfort Fillings
Memory Foam
Moulds to your body, giving orthopaedic support and superb comfort.
Firmness
Medium
Good all-rounder for front, side or back sleepers.
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."
| A | B | C | D | E | Max. Load | Max. Mattress Height | No. of Boxes | Net Weight |
|---|---|---|---|---|---|---|---|---|
| 24cm | 190cm | 90cm | N/A | N/A | N/A | N/A | N/A | 17kg |
Sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 20mm (1in)
Not sure if this will fit? Read our Home Measuring Guide for step-by-step advice.
Sealy Advantage Classic Mattress
4.8 out of 5
(206)
(34)
(3)
(2)
(3)
Experience reliable support and lasting comfort for a consistently restful night’s sleep.
PostureTech CS Springs
Reflex Foam
24cm Depth
Firmness: Medium
£329
RRP £819
Save £490
from £329
Or just £109.67 per month, 0% finance. Learn more
FREE Delivery within 2-3 Weeks Estimated delivery from 1st June
FREE delivery Tomorrow, 19th May
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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.
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.
We are unable to deliver to the following post codes:
- 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
Old Mattress Removal
For just £39, our fast and friendly team will collect your old mattress at the exact same time we deliver your new one. No waiting, no heavy lifting, and no clutter. 100% of your old mattress is carefully recycled and kept out of landfill. Simply select 'Old Mattress Removal' at checkout.
Your order helps us plant trees
151,870+ Trees planted so far
Rated Excellent
4.8/5
based on 248 reviews
Quality of product
Comfort Rating
Value for Money
83%
14%
1%
1%
1%
Customer Review Summary
Customers have generally reported high levels of satisfaction with the mattress, often commending its excellent comfort and support, which have greatly improved their sleep quality. Many have also noted the high-quality materials used, contributing to a durable product. Some reviewers indicated that the firmness may be greater than they expected, but this is appreciated by others for its supportive qualities. Overall, the mattress is well-regarded for providing a restful sleep experience while maintaining quality standards.
Excellent Comfort
Good Support
High Durability
Premium Materials
Mixed Firmness Feel
Firmer Than Expected
Verified
Absolutely brilliant value
Sarah
14th May
Verified
Quality mattress, delivered on time, as arranged, by friendly crew. Thanks so much!
Rick Mortlock
9th Apr
Verified
Excellent service.Very comfortable bed
Customer
6th Apr
Verified
We have had the mattress only a week and already on my side the mattress has sunk over 3 inches . The reason we changed our old self mattress was because it had sunk but that was over 10 years old we are so very upset and disappointed
Customer Gordon Trott
2nd Apr
Verified
Its a mattress
Dewi
26th Mar
Verified
We've had a sealy mattress before & this is just as good.
Mr Alan Sharp
17th Mar
This review represents a verified, genuine experience. This review was submitted via a secure Trustpilot invitation sent directly to the customer after their purchase. This ensures the feedback is 100% authentic, unedited, and provided by a real person who has purchased from us.
This review represents a verified, genuine experience. To ensure a broad range of feedback, we include reviews from our community and shared insights from the manufacturer. While some reviewers may have received a promotional incentive, all feedback is collected via independent 3rd-party services to ensure integrity and honesty.
Frequently paired with
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Your order helps us plant trees
151,870+ Trees planted so far
Free, fast delivery
Award winning delivery
Mattress recycling
Planet-friendly disposals
0% Interest finance
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18+, T&Cs apply, Credit subject to status
Sealy Advantage Classic Mattress
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*Delivery charges may apply for some areas. Please see our delivery page for more information.
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MattressNextDay, 116 Joseph Wilson Industrial Estate, Whitstable, Kent, CT5 3SN