Firmness
Medium Soft
Type
Hybrid
Depth (cm)
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
Price Range
£737 to £1,339
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Man, captured September 2026, and from regular price comparison across our UK retail partners.
Two things define this mattress. First, the 3000 Mirapocket springs, which means each spring moves independently, so you get support that follows your shape rather than a single stiff surface, and less disturbance when a partner moves. Second, the UltraGel cool-to-touch layer, woven into the surface fabric itself, which Silentnight says offers five times greater breathability than standard memory foam. If you're a hot sleeper who finds foam mattresses trap heat, that surface-level cooling is the point of buying this one. The medium soft firmness gives a noticeably cushioned feel, lovely for side sleepers, though it won't suit everyone.
Key Features & what's inside
- UltraGel™ cool-to-touch layer. Cooling technology woven directly into the surface fabric, so the mattress feels cool from the moment you lie down. Silentnight claims five times greater breathability than standard memory foam, which means less of that trapped, clammy heat foam is known for.
- Mirapocket® springs. A base of 3000 Mirapocket springs, each one pocketed so it compresses individually under your weight. You feel targeted support at your hips and shoulders rather than a uniform push back.
Layer details from mattressman.co.uk product page, September 2026.
Who's it NOT for?
The medium soft feel is the main filter. If you sleep on your front, weigh more than average, or simply prefer a firm, supportive surface, this is likely too soft and you may sink further than is comfortable. Back sleepers who like a firmer platform should also look elsewhere in Silentnight's range.
Silentnight UltraGel 3000 Cool-To-Touch Boxtop Medium Soft Mattress
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Is the Silentnight UltraGel 3000 soft or firm?
It's rated medium soft, so expect a cushioned, giving surface rather than a firm one. That suits side sleepers and lighter bodies well, although heavier sleepers or front sleepers may find it lacks the support they need.
Does the Silentnight UltraGel 3000 keep you cool?
Cooling is its headline feature. The UltraGel cool-to-touch layer is woven into the surface fabric, and Silentnight claims five times greater breathability than standard memory foam. It's designed specifically for people who sleep warm.
How many springs does the Silentnight UltraGel 3000 have?
It contains 3000 Mirapocket springs. These are pocketed springs that compress individually, which means support adjusts to your body shape and movement transfers less across the bed.
Does the Silentnight UltraGel 3000 come with a trial?
Mattressman lists a 60-night trial with a 14-night free return window, along with free next day delivery. Do check the terms wherever you buy, as these are the retailer's own offers rather than a Silentnight guarantee.
What sizes does the Silentnight UltraGel 3000 come in?
Five UK sizes: Single, Small Double, Double, King and Super King. Prices range from £737 to £1,339 depending on the size you choose.
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