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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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Support System
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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."
Sealy Advantage Classic Mattress
4.8 out of 5
(201)
(34)
(3)
(2)
(2)
Experience reliable support and lasting comfort for a consistently restful night’s sleep.
PostureTech CS Springs
Reflex Foam
24cm Depth
Firmness: Medium
£299
RRP £689
Save £390
from £299
FREE Delivery within 3-5 Days
FREE delivery Tomorrow, 15th March
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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.
- 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
151,670+ Trees planted so far
Rated Excellent
4.8/5
based on 242 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
The mattress differs in interpretation for firmness, but it looks good quality. The only issue with the purchase was the delivery team; they initially refused to take the mattress to the location I required, even though I had paid for that service. The walls were marked afterwards. The company delivered the product ordered, but their delivery service let them down.
Gordon Whyte
9th Mar
Verified
Reliable trustworthy items 100%
Mr John Foster
24th Feb
Verified
Great mattress. Great value for money. Would recommend
Kevin Mcmahon
18th Feb
Verified
Excellent as always
Miss Lynda Burns
16th Feb
Verified
Very supportive of joints and spinal alignmentcomfortable level of firmnesseasier to find right position to sleep better
Customer
11th Feb
Verified
Arrived on time and matched the description - what more could we want! great company that does what it says on the website!
Allyson George
8th Feb
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Your order helps us plant trees
151,670+ Trees planted so far
Free, fast delivery
Award winning delivery
Mattress recycling
Planet-friendly disposals
0% Interest finance
Buy now, pay later with Klarna
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.
1. Order by 6pm for next day delivery between Monday-Friday, 12pm on Saturday and 3pm on Sunday. The 'Order by' time may be subject to change dependant on our delivery partners.
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MattressNextDay, 116 Joseph Wilson Industrial Estate, Whitstable, Kent, CT5 3SN