Silentnight UltraGel CoolTouch 3000 Firm Mattress
The Silentnight UltraGel CoolTouch 3000 Firm is a hybrid mattress built around temperature control.
- Cool-touch surface for hot sleepers
- Firm support for back & front sleepers
- 60-night trial & 5-year guarantee
£658.96
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The Silentnight UltraGel CoolTouch 3000 Firm has a SensICE fabric surface that feels cool the moment you lie down, and a gel infused layer sits over breathable foam that Silentnight says is 5X more breathable than memory foam, which means heat is drawn away rather than trapped. Underneath, 2000 Mirapocket springs work with 1000 mini springs, so the support adjusts to where your body needs it. At 37cm deep with a plush pillowtop, it feels substantial without losing its firm character. It comes in five UK sizes, with a 60-night trial and a 5 year guarantee. Hot sleepers who want firm support should shortlist this one.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
37
Number of Layers
5
Trial Period (nights)
60
Warranty (years)
5
Price Range
£658 to £1,196
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
If you sleep hot, this mattress makes a strong case. The cooling works in stages: a cool-to-touch surface for that first pleasant chill, a gel layer that responds as you move, then foam designed to let heat escape rather than build up. The 3000-spring support system, split between full-size Mirapocket springs and mini springs, gives targeted pressure relief and helps keep movement on one side from disturbing the other. Yes, it is a real spend, but you get a 37cm deep hybrid with a pillowtop, a 60-night trial and a 5 year guarantee. It suits back and front sleepers who want a firm feel, although lightweight side sleepers may find it a little unforgiving.
Key features & layer details
Cool-to-touch sleep surface
SensICE fabric gives an instant cooling effect against your skin, which means you feel a pleasant chill the moment you get in. It draws heat away from your body for a cooler night's sleep.
Gel infused comfort layer
A responsive gel infused layer that reacts to your movements. As you shift position through the night, it adapts with you rather than leaving you to sink into one spot.
Breathable foam
Silentnight describes this foam as 5X more breathable than memory foam, which means heat has somewhere to go instead of gathering beneath you. It works alongside the gel layer to keep the sleep surface feeling fresh.
Plush pillowtop
A plush pillowtop adds a softer, cushioned feel at the surface for soothing relief. It takes a little of the edge off the firm support beneath.
Pocket spring support system
2000 Mirapocket springs combine with 1000 mini springs, giving pressure relief that adapts to your shape. Because each spring moves independently, a restless partner is less likely to disturb you.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Warm sleepers
A SensICE cover that feels cool on contact sits over foam described as 5X more breathable than memory foam, so heat is drawn away rather than trapped.
Back sleepers
The firm feel and pocket spring base give steady support under the body, while the plush pillowtop adds a little cushioning at the surface.
Front sleepers
Firm support from 2000 Mirapocket springs and 1000 mini springs helps keep the body level on top of the mattress rather than sinking in.
Couples
Each pocket spring moves independently, which means a restless partner is less likely to disturb you during the night.
Combination sleepers
The gel infused comfort layer responds as you move, so it adapts when you shift position rather than leaving you in one spot.
If you prefer a soft, sink-in feel, this firm hybrid is the wrong choice, even with its pillowtop. Lightweight side sleepers may find it presses a little too firmly at the shoulder and hip. And if cooling features are not a priority for you, you may be paying for technology you will never notice.
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.
Silentnight UltraGel CoolTouch 3000 Firm Mattress
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FAQ's
How firm is the Silentnight UltraGel CoolTouch 3000?
Silentnight rates it as firm. The plush pillowtop softens the surface slightly, but the underlying support from the 3000-spring system is firm, so expect to sleep on the mattress rather than in it. It suits back and front sleepers best.
Does the Silentnight UltraGel CoolTouch 3000 keep you cool?
Cooling is its main selling point. The SensICE fabric surface feels cool to the touch straight away, a gel infused layer sits beneath it, and the foam layer is described by Silentnight as 5X more breathable than memory foam, so heat moves away from your body rather than building up.
Does the Silentnight UltraGel CoolTouch 3000 come with a trial and guarantee?
Yes. Silentnight offers a 60-night trial, so you can sleep on it at home before committing, plus a 5 year guarantee. Delivery is listed at 14 days.
How many springs does the Silentnight UltraGel CoolTouch 3000 have?
It has 3000 springs in total: 2000 full-size Mirapocket springs plus 1000 mini springs. Each moves independently, which means support adjusts to your shape and movement on one side is less likely to travel across the bed.
What sizes does the Silentnight UltraGel CoolTouch 3000 come in?
Five UK sizes: Single, Small Double, Double, King and Super King.
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