Silentnight UltraGel 1400 Pocket Mattress
The Silentnight UltraGel 1400 Pocket is a firm hybrid mattress that pairs a gel infused comfort layer with 1400 pocket springs.
- Firm feel with zoned support
- Gentle gel cushioning, no deep sink
- 60-night trial & 5-year guarantee
£467.43
Get the lowest price we've found
The Silentnight UltraGel 1400 Pocket is 29cm deep, comes with a 60-night trial and a 5-year guarantee, and has a starting price that's reasonable for a pocket sprung hybrid from a major British brand. The firm feel suits back and front sleepers who want to sit on top of the mattress rather than sink into it, although lightweight side sleepers may find it a little unforgiving. It comes in five UK sizes, from Single to Super King.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
29
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
5
Price Range
£467 to £829
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?
The main draw here is the combination of gel and springs. The UltraGel layer is designed to adapt as you move, which means you get a touch of cushioning at the surface without the slow, stuck-in feeling some foam mattresses have. Beneath that, 1400 Mirapocket springs adjust to your body weight individually, so a heavier hip and a lighter shoulder each get the support they need. Silentnight says the zoned support is scientifically proven to improve spinal alignment and posture. Add a 60-night trial, a 5-year guarantee and delivery in 14 days, and it's a low-risk way to try a firm hybrid.
Key features & layer details
UltraGel™ layer
A gel infused comfort layer that Silentnight describes as smart and responsive, designed to adapt to your movements. In practice that means comforting, soothing cushioning at the surface rather than a deep sink.
Mirapocket® springs
1400 individual pocket springs that adjust to your body weight, giving ease of movement and zoned support. Silentnight states this zoning is scientifically proven to improve spinal alignment and posture.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Back sleepers
The firm feel keeps you sitting on top of the mattress rather than sinking in, which suits lying flat on your back.
Front sleepers
A firm surface over 1400 pocket springs stops your middle dropping too deep, so lying on your front feels level and supported.
Heavier sleepers
The 1400 Mirapocket springs adjust to your body weight individually, so a heavier hip gets the support it needs without bottoming out.
Combination sleepers
The UltraGel layer adapts as you move, giving light cushioning without the slow, stuck-in feeling of foam when you change position.
If you sleep on your side and are on the lighter side, a firm mattress like this may not let your shoulder and hip sink in enough, which can cause pressure points. If you prefer a plush, hugging feel, you should look at softer hybrids or all-foam options instead.
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 1400 Pocket Mattress
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FAQ's
How firm is the Silentnight UltraGel 1400 Pocket mattress?
Silentnight rates it as Firm. That means a supportive, on-top-of-the-bed feel rather than a soft sink, which tends to suit back and front sleepers, and anyone who prefers a sturdier surface.
Does the Silentnight UltraGel 1400 come with a trial and guarantee?
Yes. Silentnight offers a 60-night trial and a 5-year guarantee, so you have two months to decide whether the firm feel works for you at home.
How deep is the Silentnight UltraGel 1400 mattress?
It's 29cm deep, a generous depth that should work with standard fitted sheets, though it's worth checking deep-pocket sheets if yours are on the shallow side.
What sizes does the Silentnight UltraGel 1400 come in?
Five UK sizes: Single, Small Double, Double, King and Super King.
How long does delivery take for the Silentnight UltraGel 1400?
Silentnight lists delivery within 14 days. If you buy from a retailer, delivery terms may differ, so check before ordering.
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