Firmness
Medium Firm
Type
Hybrid
Depth (cm)
30
Number of Layers
4
Trial Period (nights)
100
Warranty (years)
7
Price Range
£2,729
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
This mattress makes sense if you want a full-height, spring-and-foam hybrid with temperature control built in at more than one level. The cover uses SmarTex fibres to wick moisture and draw away heat, and the Geltex layer underneath has an open-cell structure, which means air moves through it rather than sitting against your body, a genuine help if you sleep warm. Memory foam then moulds to your shape for pressure relief, while twice tempered Posturepedic springs respond to your body weight to keep your spine aligned. Allergy UK approval and a ProShield allergen treatment are welcome extras for allergy-prone sleepers. The price is steep, but the construction and certifications go some way to justifying it.
Key Features & what's inside
- Quilted Cover. A soft quilted cover blended with SmarTex fibres, which wick away moisture and draw off heat to help regulate your temperature through the night. It's also treated with ProShield to help protect against allergens.
- Geltex. A highly breathable foam with an open-cell structure, which means heat escapes rather than building up beneath you. It offers pressure relief with a quicker bounce-back than traditional foams, so you shouldn't feel stuck when you change position.
- MemorySense® Comfort Core™. A memory foam layer that gently moulds around your shape, easing pressure on hips and shoulders. It adds targeted support where your body pushes hardest into the mattress.
- AlignSupport Coil Springs. Sealy's Posturepedic coil spring system senses and responds to your body weight to keep your spine aligned. The springs are twice tempered, which means they're treated to hold their responsiveness over time.
Layer details from mattressonline.co.uk product page, September 2026.
Who's it NOT for?
If you're expecting a true medium feel, tread carefully: the only owner review so far says it sleeps firmer than advertised, so lightweight side sleepers may find it too solid. It's also sold in UK Super King only, and at £2,729 it won't suit tighter budgets. Anyone needing other sizes should look elsewhere.
Sealy Posturepedic Elevate Ultra Prestige Gel Mattress
View all mattresses
How firm is the Sealy Posturepedic Elevate Ultra Prestige Gel mattress?
Sealy rates it as medium. That said, the one customer review on the MattressOnline listing says it feels firmer than that, so if you prefer a softer surface, treat the medium label with a little caution.
Does the Sealy Elevate Ultra Prestige Gel come with a trial?
MattressOnline lists a 100-night trial with this mattress. That trial is the retailer's own offer rather than a Sealy guarantee, so if you buy elsewhere the terms may differ. Check the trial conditions with your chosen retailer before ordering.
What sizes does the Sealy Elevate Ultra Prestige Gel come in?
It's listed in UK Super King only, priced at £2,729. If you need a different size, you'll need to look at other models in Sealy's range. Note the MattressOnline listing currently marks it as no longer available.
Is the Sealy Elevate Ultra Prestige Gel good for hot sleepers?
It's one of the better-specified options for warm sleepers. The cover's SmarTex fibres wick moisture and draw away heat, and the Geltex layer's open-cell structure lets air circulate, which means less heat builds up under you overnight.
How long is the guarantee on the Sealy Elevate Ultra Prestige Gel?
The MattressOnline listing states a 7 year guarantee. As that figure comes from a retailer listing rather than Sealy's own page, it's sensible to confirm the guarantee terms directly with the retailer before you buy.
Couldn't find an answer to your question? Send us a message