Sealy Exquisite Radiance Plush Mattress
The Sealy Exquisite Radiance Plush Mattress combines graphite-infused ClimaLux foam with two layers of mini pocket springs, which means a soft-to-medium feel that sleeps fresher and stays bouncy underneath.
- Cooler, fresher sleep surface
- Soft feel that eases pressure
- Bouncy springs, easy to move on
£3,599
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The Sealy Exquisite Radiance Plush is a 36cm pocket spring mattress with graphite-infused foam on top, rated Medium Soft. It suits sleepers who want a cushioned feel with some bounce and a cooler surface. It's handcrafted in the UK and comes in UK Double, King and Super King. Mattress Online offers a 100-night comfort trial, and the page lists a 10-year guarantee.
Mattress specifications
Firmness
Medium Soft
Type
Pocket Spring
Depth (cm)
36
Number of Layers
5
Trial Period (nights)
Warranty (years)
Price Range
£3,599 to £5,099
Best Sleeping Position(s)
Side Sleeping
Certifications
BS 7177
Assessed from the specification published by mattressonline.co.uk, captured October 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This is a plush mattress built to stay fresh. Graphite-infused ClimaLux foam sits at the top to keep the sleep surface cooler, while a thin layer of EcoLux ComfortCore foam shapes around you to ease built-up pressure. Two layers of mini pocket springs improve airflow and give a bouncy feel, so it doesn't feel stuck in the foam. EternityFibre is there to reduce settlement over time. It should suit side sleepers and anyone wanting a softer feel, although the bounce may be less to your taste if you want a slow, sinking feel. The cover has an ActiPro allergen treatment.
Key features & layer details
ClimaLux foam
Two 2cm layers of graphite-infused ClimaLux foam. They promote a cooler, fresher sleep surface, which helps if you tend to warm up in bed.
EcoLux ComfortCore foam
A 1cm layer that shapes around the body. It eases built-up pressure, adding to the plush feel.
Mini pocket springs
Two layers of 2000 mini pocket springs that improve airflow and give a bouncy feel. You get responsiveness rather than a slow sink.
EternityFibre
A finishing comfort layer described as highly resilient and durable. It's there to reduce settlement, so the surface should keep its shape for longer.
RestSupport coil core
A core of twice-tempered RestSupport coils that respond to body weight. This gives the support underneath the softer layers above.
Layer details from mattressonline.co.uk product page, October 2026.
Best suited for?
Side sleepers
A thin EcoLux ComfortCore foam layer shapes around the body to ease built-up pressure, which suits the cushioned, Medium Soft feel side sleepers often look for.
Warm sleepers
Two layers of graphite-infused ClimaLux foam sit on top to keep the surface cooler, and the mini pocket springs below improve airflow.
Allergy sufferers
The cover has an ActiPro allergen treatment, which gives people who are sensitive to allergens a more suitable surface to sleep on.
Combination sleepers
Two layers of mini pocket springs give a bouncy, responsive feel rather than a slow sink, so changing position during the night feels easier.
If you prefer sleeping on a firm mattress, this might not be the best choice. It's rated Medium Soft, so heavier sleepers and front sleepers who need firmer support may find it too forgiving. It's also single-sided, so you can rotate it top to toe but not flip it. Sealy doesn't publish a firmness score beyond that.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Sealy Exquisite Radiance Plush Mattress
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FAQ's
How firm is the Sealy Exquisite Radiance Plush?
It's rated Medium Soft, and the retailer describes it as soft to medium. That suits side sleepers and lighter sleepers well, although anyone wanting firm support will probably find it too soft.
What sizes does the Sealy Exquisite Radiance Plush come in?
It comes in UK Double (135cm x 190cm), UK King (150cm x 200cm) and UK Super King (180cm x 200cm). All are 36cm deep, and the Super King has a stated tolerance of 2cm either way.
How deep is the Sealy Exquisite Radiance Plush?
It's 36cm deep in all three sizes. That's a fairly substantial mattress, so check your bed frame and bedding allow for the height before you order.
Is the Sealy Exquisite Radiance Plush good for hot sleepers?
It has features aimed at heat. The top two foam layers are graphite-infused for a cooler surface, and the mini pocket spring layers improve airflow. Sealy doesn't publish a temperature test, so expect a cooler feel rather than a guarantee.
Does the Sealy Exquisite Radiance Plush come with a trial or guarantee?
Mattress Online offers a 100-night comfort trial, and you must buy a mattress protector from them to be eligible. The page also lists a 10-year guarantee, though it doesn't say whether Sealy or the retailer provides it.
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