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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.
      Fire Resistant - Low Hazard icon
      Fire Resistant - Low Hazard
      This product conforms to the BS7177: 2008 standard for domestic use (low hazard) - ideal for use at home.

      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
      (192)
      (34)
      (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
      storage icon
      Single
      3' x 6'3"
      Lightning Deal
      £299
      storage icon
      Small Double
      4' x 6'3"
      Lightning Deal
      £369
      storage icon
      Double
      4'6" x 6'3"
      Lightning Deal
      £369
      storage icon
      King Size
      5' x 6'6"
      Lightning Deal
      £399
      storage icon
      Super King
      6' x 6'6"
      Lightning Deal
      £519
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      Out of stock

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      Free Delivery in Next Day

      Free delivery Tomorrow, 13th January

      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

      151,470+ Trees planted so far

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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 232 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 appreciate the mattress for its impressive comfort and supportive design, often reporting enhancements in their sleep quality and reductions in discomfort. Many highlight the durable construction and quality of materials, contributing to a feeling of luxury. However, some users found the mattress to be firmer than anticipated, which might not suit everyone, although this firmness is seen by many as beneficial for proper spinal alignment. Overall, the product is well-regarded for its ability to provide a restful and restorative sleep experience while showcasing strong quality.

      Excellent Comfort
      Supportive Design
      Durable Construction
      Quality Materials
      Enhanced Sleep Quality
      Luxurious Feel
      Firmer Than Expected
      Trustpilot Star rating Verified

      Matress helps my back pain

      Catherine Greenway 22nd Dec
      Trustpilot Star rating Verified

      Perfect for my arthritis . No sore shoulders etc in the morning just so comfy .. Only downside is its not to heavy to turn but could do with handles on the sides to help to lift it if you have arthritic fingers but its a comfy mattress

      Yvonne 12th Dec
      Trustpilot Star rating Verified

      Really impressed delivery was great the mattress was packed so well the mattress is for my daughter and she has slept well ever since we got the mattress

      Helen Johnson 8th Dec
      Trustpilot Star rating Verified

      It's a little bit firmer than expected but it's still like sleeping on a cloud.

      David Elliman 22nd Nov
      Trustpilot Star rating Verified

      This is the second sealy mattress we have purchased and we picked our recent choice as close in specification to our previous purchase.We were not disappointed in fact with a softer topper and a different top fabric for both my self and partner are more than satisfied.

      Mr And Mrs R Ingle 20th Nov
      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

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      Sealy Advantage Classic Mattress

      Sealy Advantage Classic Mattress

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