Firmness
Type
Hybrid
Depth (cm)
35
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£719 to £1,269
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 draw is choice without compromise. Two firmness options, Medium/Soft or Firm, are available at the same price, which means you can match the mattress to your sleeping position instead of guessing. The pocket springs work independently to spread weight evenly and adjust to movement, so you should feel less disturbance when a partner turns over. Add the breathable gel layer and a sumptuous boxtop and you get a mattress aimed squarely at sleepers who run warm but still want a plush surface. The 5-year guarantee is on the shorter side for a hybrid at this price. The 60-night trial does give you a proper window to decide, though.
Key Features & what's inside
- UltraGel comfort layer. A gel-infused comfort layer that is breathable, which means it helps disperse heat rather than trapping it. It relieves pressure and responds to your movements as you change position.
- Boxtop. A sumptuous boxtop sits above the springs, adding a plush, cushioned feel to the sleep surface. It is the layer that gives the mattress its deep, upholstered look.
- Mirapocket and mini springs. 2000 Mirapocket springs and 1000 mini springs each sit in their own pocket and work independently, which means weight and pressure are spread evenly. They also adjust to movement, so you feel supported without the ripple effect of a traditional spring unit.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
If you want a natural or foam-free mattress, the gel-infused foam here won't suit you. Budget shoppers may find the £719 starting price a stretch. And if a long guarantee matters to you, the 5-year cover is shorter than some brands provide, so factor that into the price.
Silentnight UltraGel 3000 Pocket Mattress
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How firm is the Silentnight UltraGel 3000 Pocket mattress?
You choose the firmness when you buy: Medium/Soft or Firm, at no additional cost. Medium/Soft tends to suit side sleepers who want a bit of give, while Firm generally suits back and front sleepers or anyone who prefers a more solid feel.
How many springs does the Silentnight UltraGel 3000 have?
It has 3000 springs in total: 2000 Mirapocket springs and 1000 mini springs. Each spring sits in its own pocket and works independently, which means weight is spread evenly and movement on one side of the bed is less noticeable on the other.
Does the Silentnight UltraGel 3000 come with a trial?
Yes. Silentnight offers a 60-night trial on this mattress, along with a 5-year guarantee. Delivery is listed at 14 days.
How deep is the Silentnight UltraGel 3000 mattress?
It is 35cm deep, and that depth is consistent across every size. It's a tall mattress, so check your fitted sheets will stretch to it before ordering.
What sizes does the Silentnight UltraGel 3000 come in?
Five UK sizes: Single, Small Double, Double, King and Super King. Prices range from £719 to £1,269 depending on the size you choose.
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