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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.
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
(212)
(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
£299
RRP £689
Save £390
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FREE Delivery within Next Day Estimated delivery from
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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.
At MattressNextDay, we want to offer you the lowest price for the sleep you deserve.
We check our competitors' prices every 24 hours so you can combine the very best deal with our award-winning service.
Who We Match Against
We actively monitor and price match against the following authorised UK retailers:
- Archers Sleepcentre
- BedFactoryDirect
- Bensons for Beds
- BestPriceBeds
- Dreams
- Furniture Village
- Happy Beds
- John Lewis
- Land of Beds
- MattressMan
- MattressOnline
- MyNextMattress
Spotted it cheaper? Here is how to claim:
We check daily, but if you do happen to catch a lower price on the exact same item from any of the retailers above, we will match it.
- Find the Deal: Have the link to the competitor's cheaper product ready.
- Get in Touch: Contact our team before you place your order.
- Sleep Easy: We’ll match the price and deliver it as soon as possible.
Sales Hotline: 0333 0069 769(Open Mon-Fri 9am-5pm, Sat 9am-3pm, Sun 10am-4pm)
Delivering a better night’s sleep
We are proud to provide our award-winning Free Next Day Delivery service to almost everywhere across mainland UK, sending a proper night’s sleep out far and wide.
Hassle-free and convenient, you can choose a date and time that suits you if you prefer, and get us to deliver straight to your room of choice!
For some addresses, a small fee will be charged to help us get you your best night’s rest as quickly as possible. To see if this applies to you, or if we’d be unable to deliver to you, just check our Postcode Checker.
Returns made simple
Sleep is personal, so we understand that sometimes you may want to return an item you’ve purchased from us for an exchange or refund.
To make things go as smoothly as possible if you do decide to return, make sure that you check your item(s) when they arrive before signing for delivery.
In the unlikely event of a problem, just give our friendly, award-winning Customer Service team a call, but do note that if you want to return your item to us, you will be responsible for arranging it and for the cost. For more information, head to our Returns page.
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.
Our Sustainability Efforts
We’re proud to be partnered with Ecologi, the UK’s leading climate platform, to help us plant trees and fund environmental projects across the globe, protecting the world’s rainforests and helping those in need.
Our #SustainableSnooze campaign also highlights our journey to becoming a Net Zero company, keeping as many old mattresses out of landfill, and making positive steps in our internal processes to become as green as possible.
Read more about why this is important to us and the milestones we’ve achieved on our Sustainability page.
Rated Excellent
4.8/5
based on 254 reviews
Quality of product
Comfort Rating
Value for Money
83%
13%
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
Mattress good but left upside down so a few problems
Mrs Devoto
27th Jul
Verified
Extremely comfortable mattress.
Elizabeth Craig
26th Jun
Verified
I like this mattress, its well made, only had it a couple of weeks but so far so good. Fast delivery very helpful and careful with the delivery. Would recommend this company.
Christineberry
23rd Jun
Verified
Only a week in but now enjoying better sleep and comfort - what more is needed!
John
11th Jun
Verified
High quality, very comfortable and well made mattress. Ive bought the medium support one. My back feels so much better! It was great value too, as it was in a sale.
Debra Chamberlain
9th Jun
Verified
A comfortable and well made product.
Patricia
6th Jun
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
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Free, fast delivery
Award winning delivery
Mattress recycling
Planet-friendly disposals
0% Interest finance
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Sealy Advantage Classic Mattress
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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
MattressNextDay