Silentnight UltraGel 1000 pocket Mattress
Mattress
Silentnight UltraGel 1000 pocket Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
28
Layers
2
Layer Details
- UltraGel comfort layer. A gel infused foam layer that responds to your movements, which means you get contouring without the slow, sunken feel some foams have. Silentnight says it's 5x more breathable than standard memory foam, so it should run cooler through the night.
- Mirapocket springs. 1000 Mirapocket springs, each held in its own fabric pocket so they respond independently to your body. In practice that means zoned support, better spinal alignment and less motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
- The shared size that fits: At 4ft 6in x 6ft 3in, it suits a typical UK bedroom with room left for a wardrobe and drawers, where a UK king would dominate.
- Independent springs matter more when sharing: With 67.5cm each for two people sharing, the pocketed springs' resistance to motion transfer becomes a nightly benefit rather than a spec sheet line.
- Cooler for two: Two bodies generate more heat than one, and the UltraGel layer, which Silentnight states is 5x more breathable than standard memory foam, helps offset that.
- Room for bedside tables both sides: Allow at least 2.6m x 2.8m and most rooms will still take a table on each side, which matters when you both want a lamp and a phone charger.
- Easy to dress: Standard double sheets and duvets are sold everywhere at every price, useful if you're furnishing a whole home and the budget is already stretched.
This size suits you if...
You share the bed most nights and your room sits around the typical UK size, where a UK king would leave you squeezing past the footboard. It also suits a solo sleeper who wants space to sprawl, or to share with a dog or cat that claims a corner, and it makes a sensible guest room bed for visiting couples.
Consider another size if...
You and your partner both like space and your room measures at least 2.7m x 2.9m. The UK king is 15cm wider and 10cm longer, and we'd recommend it instead, particularly if one of you is tall.
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Is the Silentnight UltraGel 1000 UK double big enough for two adults?
For most couples, yes. You get 67.5cm each for two people sharing, and the 1000 Mirapocket springs respond independently, so a restless partner disturbs you less than the width alone suggests. If either of you is broad shouldered or you sleep with a child or pet in the bed, the UK king's extra width is worth considering.
What room size do I need for the UltraGel 1000 in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows you to walk round both sides and open drawers without shuffling sideways. If you want bedside tables on both sides, the smaller end of that range will feel snug but workable in most layouts.
Should I buy the UltraGel 1000 in a UK double or size up to the UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king. Choose the UK king if your room measures at least 2.7m x 2.9m and either of you is tall or a light sleeper. Stick with the UK double if floor space is tight or you're furnishing a smaller second bedroom.
Is the UK double UltraGel 1000 a good choice for a guest room?
It's a sensible one. The 135 x 190cm footprint accommodates visiting couples as well as solo guests, and the medium firm feel suits a wide range of sleepers, which is what you want when you can't predict who's staying. Lightweight side sleepers may find it slightly firm, but for occasional use that's a minor concern.
How do I find the best price on the UltraGel 1000 UK double?
Compare the retailers listed on this page. More than one stocks this size, and the prices shown here are updated as retailers change them, so the cheapest option can shift from week to week. It's a mainstream Silentnight model in Britain's most common size, which tends to mean regular discounting, so checking twice before you buy can pay off.