Sealy Arden Elevate Ultra Posturepedic Mattress
The Sealy Arden Elevate Ultra Posturepedic Mattress is available in UK Single, UK Double, UK King and UK Super King.
- Allergy UK approved cover
- Supportive edge-to-edge perimeter
- Handcrafted in the UK
£1,169
Get the lowest price we've found
Sealy doesn't yet publish verified construction or firmness details for the Arden Elevate Ultra, so we can't describe how it feels or who it suits. If you're considering it, we'd suggest checking the retailer's returns and trial terms carefully before you buy, as we can't confirm those either.
Mattress specifications
Firmness
Medium
Type
Open Coil Spring
Depth (cm)
Number of Layers
7
Trial Period (nights)
Warranty (years)
Price Range
£1,169 to £2,029
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from the product page published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The Arden suits sleepers who want a medium feel and a mattress that manages heat and allergens. The cover is hypoallergenic, treated with ProShield, and uses SmarTex fabric for temperature regulation, and it is approved by Allergy UK. AlignSupport coil springs are there for posture, while the UniCased XT surround runs round the whole edge, so the sides should feel supportive when you sit or sleep near them. It is handcrafted in the UK and comes with a 7-year guarantee. The downside is that it is no-turn, so you can rotate it but not flip it, and at a premium level it is a considered purchase.
Key features & layer details
Damask cover
A knitted damask cover treated with SmarTex and ProShield to manage heat, moisture and allergens. It helps keep the surface comfortable and suits sleepers who want a hypoallergenic cover.
MemorySense ComfortCore
A specialist support layer for the lumbar region. It is there to support the middle of your body, where your weight sits deepest.
GelTex layer
A deep GelTex comfort layer sits beneath. It adds cushioning between the surface and the support below.
Firm foam
A supportive, durable firm foam layer. It adds stability and helps the comfort layers above keep their shape.
AlignSupport coil springs
Sealy's AlignSupport spring system, built to provide support and posture. It forms the main support under the foam layers.
UniCased XT surround
A wall that runs round the full perimeter of the mattress. It gives edge-to-edge support, so you can use more of the surface.
BasePlank support
The foundation layer of the Arden. It gives the springs and foam above a solid base to work from.
Layer details from mattressonline.co.uk and mynextmattress.co.uk product pages, October 2026.
Best suited for?
Allergy sufferers
The hypoallergenic damask cover is treated with ProShield and approved by Allergy UK, which means the surface is built to manage allergens.
Warm sleepers
A knitted cover treated with SmarTex fabric is designed to regulate temperature and manage heat and moisture, so the surface should stay comfortable through the night.
Couples
The UniCased XT surround runs round the full perimeter, giving edge-to-edge support so both sleepers can use more of the surface and sit near the sides.
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 Arden Elevate Ultra Posturepedic Mattress
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FAQ's
What sizes does the Sealy Arden Elevate Ultra Posturepedic come in?
It's available in four UK sizes: Single, Double, King and Super King.
How much does the Sealy Arden Elevate Ultra Posturepedic cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. It's a serious spend, so it's sensible to confirm the retailer's delivery, trial and returns terms before ordering.
Where can I buy the Sealy Arden Elevate Ultra Posturepedic?
Compare the retailers listed in the price table on this page for the current prices. It's worth checking current stock in your preferred size.
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