Sealy Posturepedic Elevate Ultra Prestige Gel Mattress

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.

Warm sleepers
The SmarTex cover wicks moisture and draws off heat, while the open-cell Geltex layer lets air move through, so you should stay cooler overnight.

Allergy sufferers
Allergy UK approval and a ProShield allergen treatment on the quilted cover make this a sensible pick if you react to allergens.

Combination sleepers
Geltex bounces back quicker than traditional foams, which means you shouldn't feel stuck when you roll from one position to another.

Couples
The Super King size gives two people plenty of room, and the Posturepedic springs respond to each person's body weight to keep the spine aligned.

Back sleepers
Twice tempered AlignSupport springs respond to your weight to keep your spine aligned, while the memory foam layer adds support where your body pushes in hardest.

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 the starting price won't suit tighter budgets. Anyone needing other sizes should look elsewhere.

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. 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.