Independent UK mattress reviews since 2018
Checked on Mattress Online's site, 10 October 2026. Full terms at Mattress Online
In our experience, the materials and construction that go into this product can make it suitable for the following people.
Great new mattress from the guys that know what they are doing in the industry.
Strong guarantee that gives full-lifespan against the average replacement lifecycle.
No euro sizing.
Pricier than many others in the segment, although others do not have the Posturepedic design
You need a good night's sleep. That's why the Sealy Arden Elevate Ultra Posturepedic Mattress is designed to help you sleep more soundly and wake up feeling refreshed. With a 30cm height, it has the perfect balance of comfort and support as you lie on a mattress made with warming materials that conserve heat to the touch. So go ahead, have a lay down and take a load off. You deserve it.
Drawing on over 10 years in the mattress industry, our team judged the construction, materials and firmness of the Sealy Posturepedic Elevate Ultra Arden Memory Mattress point by point from its 27-point specification and Mattress Online's listing, and benchmarked it against 149 other hybrid mattresses we track. We have checked its price 429 times since August 2022. How we review
When we get something wrong, we fix it and say so here. All corrections
Personalised feel depends on bodyweight. Adjust your weight below to get an indication of how the Sealy Posturepedic Elevate Ultra Arden Memory Mattress may feel.
Soft
Soft Medium
Medium
Medium Firm
Firm
Extra Firm
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From £984 (Single) at Mattress Online
Our latest King reading against the last 90 days
The King chart starts once we have two readings.
Over 90 days the King at Mattress Online has read from £1,328 to £1,558; the low came on 6 Nov 2026.
Prices exclude delivery. How we record prices: our mattress price report.
Owner figures for Sealy mattresses as a whole are in our mattress reliability report.
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Common questions answered by our team first, then questions shoppers asked the retailer, with the retailer’s own answers.
We've expanded on the specifications of the product to better help you understand its benefits.
Single side mattresses have a few pros and cons compared to traditional double sided mattresses. The main positive is that you do not need to flip, meaning a hassle free low maintenance product. The easy care nature does reduce durability slightly since there is less surface area utilised as there is no secondary comfort layer on the reverse.
A mattress with moisture-wicking capabilities significantly enhances the sleeping experience by keeping you cool and dry throughout the night. This feature works by actively drawing moisture away from your body, allowing it to evaporate quickly, thus maintaining a comfortable sleep environment.
This innovative foam layer provides a perfect balance of durability and comfort, ensuring long-lasting support while maintaining a snug feel. Its unique resilience helps the mattress retain its shape over time, enhancing both longevity and performance.
The Plush MemorySense ComfortCore™ provides targeted support that reduces pressure points, which could enhance sleep quality. Its design aims to adapt to body contours, promoting a more restful and comfortable night's sleep.
The luxe knitted cover effectively acts as a barrier against allergens, promoting a healthier sleep environment. It is particularly beneficial for individuals with allergies or sensitivities, reducing potential irritation.
The Unicased XT edge support system enhances mattress stability, preventing sagging at the edges over time. This results in a more durable sleeping surface that allows for consistent support across the entire bed.
Meets BS7177: 2008 for domestic low hazard use. Testing covers resistance to a smouldering cigarette and a small flame the size of a match flame, not suitability for hotels or care homes.
Additional sleeping space ensures a comfortable sleeping experience by preventing the sensation of rolling off the edge. It offers a more secure and restful night's sleep for any user.
Twice-tempered smart springs ensure enhanced durability, reducing the likelihood of sagging over time. This feature contributes to a longer-lasting and more supportive sleep surface.
Posturepedic is Sealy's mattress range name, useful for recognising related models when comparing options. Consider the individual construction and firmness when choosing within it.
Medium marks the centre of the firmness scale. Use this brand's range when comparing options, since manufacturers set their own ratings and share no universal firmness standard.
Side sleepers typically benefit from a slightly softer surface to cradle their body's natural curves. A medium tension mattress offers this comfort without sacrificing support.
Sealy says development included input from the Orthopaedic Advisory Board, which indicates design involvement without specifying firmness or guaranteeing comfort.
Marketed as support that follows your body's shape. That claim does not establish the firmness, so it cannot tell you whether the feel will suit you.
Made in the UK gives the country it was built in and little about quality on its own, so judge the materials, construction and guarantee separately.
All core components within the mattress have been manufactured utilising specific materials that allow for easy recycling of the entire product.
Comfort layers are arranged for sleeping on the upper face only, so routine care involves rotating the mattress head to foot without flipping it.
AlignSupport is Sealy's own coil spring system, forming the underlying structure that bears body weight beneath the mattress's comfort fillings.
Comfort layers are claimed to let shoulders and hips sink in and spread weight, with suitability depending on body weight and sleeping position.
AlignSupport Coil is Sealy's own spring system beneath the comfort layers, engineered, in the brand's words, to actively respond to your body.
A stretchy knitted cover moves with the comfort layers underneath and is marketed as feeling smoother than traditional woven damask.
At 30cm (about 11.8 inches), mattress thickness affects sheet fit and bed height. For frames, check the complete dimensions.
Hypoallergenic means the materials were picked to cut common allergy triggers, the brand says.
Seven years of guarantee cover, with the retailer's terms defining which faults qualify.
Guarantee cover from the brand lasts seven years.
Hand picked video that relates to the specifications of The Sealy Posturepedic Elevate Ultra Arden Memory Mattress
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