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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."

      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

      Size

      Single 3' x 6'3"
      £299 RRP £689
      3-5 Days
      Small Double 4' x 6'3"
      £369 RRP £819
      Only 2 left
      Double 4'6" x 6'3"
      £369 RRP £819
      In stock
      King Size 5' x 6'6"
      £399 RRP £919
      Only 1 left
      Super King 6' x 6'6"
      £519 RRP £1199
      Only 1 left

      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.

      Download warranty/guarantee information

      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.

      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.

      A logo for Ecologi
      Your order helps us plant trees

      151,670+ Trees planted so far

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      See what the Sleep Expert thinks about this product.

      Sleep Expert

      Rated Excellent

      4.8/5
      based on 242 reviews
      Trustpilot star rating
      Quality of product
      4.8 / 5
      Comfort Rating
      4.9 / 5
      Value for Money
      4.9 / 5
      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
      Trustpilot Star rating 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
      Trustpilot Star rating Verified

      Reliable trustworthy items 100%

      Mr John Foster 24th Feb
      Trustpilot Star rating Verified

      Great mattress. Great value for money. Would recommend

      Kevin Mcmahon 18th Feb
      Trustpilot Star rating Verified

      Excellent as always

      Miss Lynda Burns 16th Feb
      Trustpilot Star rating Verified

      Very supportive of joints and spinal alignmentcomfortable level of firmnesseasier to find right position to sleep better

      Customer 11th Feb
      Trustpilot Star rating 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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      A logo for Ecologi

      Your order helps us plant trees

      151,670+ Trees planted so far

      Free, fast delivery

      Award winning delivery

      Mattress recycling

      Planet-friendly disposals

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      0% Interest finance

      Buy now, pay later with Klarna

      18+, T&Cs apply, Credit subject to status
      Sealy Advantage Classic Mattress

      Sealy Advantage Classic Mattress

      £

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