Firmness
Type
Hybrid
Depth (cm)
29
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£468 to £859
Best Sleeping Position(s)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main appeal here is the feel. That plush pillowtop gives you a cushioned surface to settle into, while the gel-infused foam beneath responds to your movements, so it shouldn't feel like you're stuck in one spot. Underneath, 1000 pocket springs sit in individual pockets, which means each spring moves independently and supports your body where it needs it, with zoned support to help keep your spine aligned. The medium soft rating suits side sleepers and lighter bodies particularly well, as it allows shoulders and hips to sink in slightly. Add a 60-night trial and a 5-year guarantee from Silentnight, and it's a fairly low-risk way to try a softer hybrid, at a mid-range price.
Key Features & what's inside
- Gel-infused comfort layer. A gel-infused foam layer that responds as you move, paired with breathable foam. In practice this means a responsive, slightly bouncy feel rather than the slow sink of traditional memory foam.
- Plush pillowtop. A soft pillowtop stitched to the surface for that sink-in feel. This is what gives the mattress its cushioned, medium soft character.
- Mirapocket springs. 1000 Mirapocket springs, each housed in its own fabric pocket so they move independently. Silentnight says the zoned design is scientifically proven to improve spinal alignment and posture, which you'll feel as firmer support where your body is heaviest.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
If you prefer a firm, supportive surface, or you sleep mainly on your front, the medium soft feel here will likely be too yielding. Heavier sleepers may also sink further into the pillowtop than is comfortable. And pillowtops can't be flipped, so you're limited to rotating it for even wear.
Silentnight UltraGel 1000 Pocket Pillowtop Mattress
How firm is the Silentnight UltraGel 1000 Pocket Pillowtop?
Silentnight rates it medium soft, described on their page as a little softer than a medium for sleepers who need a little extra give. It suits side sleepers and those who like a cushioned, sink-in surface, although anyone wanting firm support should look elsewhere.
Does the Silentnight UltraGel 1000 come with a trial?
Yes. Silentnight offers a 60-night trial with their sleep guarantee when you buy from them directly, alongside a 5-year warranty. Terms may differ if you buy through one of the retailers stocking it, so check before ordering.
How deep is the Silentnight UltraGel 1000 mattress?
It's 29cm deep across all sizes, which is a fairly substantial build thanks to the pillowtop. You may want deeper fitted sheets to get a snug fit.
What sizes does the Silentnight UltraGel 1000 come in?
It's available in UK Single, Small Double, Double, King and Super King, with prices ranging from £468 to £859 depending on the size you choose.
How long does delivery take for the Silentnight UltraGel 1000?
Silentnight states delivery in 14 days when ordering from their own site. Delivery times may differ if you buy through a retailer.
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