Silentnight UltraGel 3000 Pocket Single Mattress
The Silentnight UltraGel 3000 Pocket is a hybrid mattress that pairs a gel-infused comfort layer with 3000 springs in total: 2000 Mirapocket springs plus 1000 mini springs.
- Choose medium-soft or firm feel
- Breathable gel helps disperse heat
- 60-night trial & 5-year guarantee
£719
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Silentnight UltraGel 3000 Pocket Mattress
More available sizes
Mattress details
Mattress
Silentnight UltraGel 3000 Pocket Mattress
Size
Firmness
Construction
Pocket Spring
Hybrid
Gel
Depth (cm)
35
Layers
3
Layer Details
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.
Key benefits
- Leaves space for everything else: At 90cm wide, the UK single leaves room for a desk, wardrobe and toy storage in a child's bedroom, so the bed doesn't take over the floor.
- Firmness chosen for one person: With one sleeper you pick Medium/Soft or Firm for a single body and position, which means nobody has to settle for a compromise feel.
- Cooler for warm sleepers: Teenagers who run hot get the breathable gel comfort layer, which disperses heat rather than holding it against the body through the night.
- Two fit in a guest room: A pair of UK singles lets two guests who don't share a bed sleep separately, each with independent pocket springs under them.
- Fits a narrow loft conversion: The 90cm width can tuck under a sloping ceiling where a wider bed would block the usable standing space.
This size suits you if...
You're furnishing a child's or teenager's bedroom where a desk and storage also need floor space, or you sleep alone and want a plush, cooler surface in a compact room. It also suits you if you're setting up a spare room with two separate beds.
Consider another size if...
You're an adult who sprawls or wants room to turn freely. We'd recommend the UK small double instead, which is 30cm wider at the same length; we suggest at least 2.4m x 2.8m for the UK small double.
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FAQ's
Will the Silentnight UltraGel 3000 UK single fit a bunk bed or mid sleeper?
It will fit the base, as bunks and mid sleepers take a UK single, but the mattress is 35cm deep. That is taller than many raised frames allow for, and a deep mattress reduces how high the safety rail sits above the sleeper. Check the frame maker's maximum mattress depth before ordering.
Is the UltraGel 3000 in a UK single a good mattress for a child's room?
It can be, particularly for an older child or teenager who sleeps warm, thanks to the breathable gel layer. You can order Medium/Soft or Firm to suit how they sleep. Yes, the 35cm depth makes it a tall bed for a small child to climb onto, but on a standard low frame that rarely causes problems.
How much bedroom space do I need for a UK single UltraGel 3000?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which leaves room to walk around the bed and open drawers. For a spare room that also works as an office, measure your desk and chair clearance alongside it before committing.
Should a single adult get the UltraGel 3000 in a UK single or a UK small double?
The UK single suits you if floor space is tight and you lie fairly still. The UK small double is 30cm wider and the same length, so it gives you more room to turn over. We suggest at least 2.4m x 2.8m for the UK small double, against 2.1m x 2.8m for the UK single.
Is the UltraGel 3000 UK single long enough for a tall teenager?
The UK single is 190cm long, the same length as the UK small double and UK double. If your teenager is very tall and their feet already reach the end of their current bed, the UK king is 10cm longer, although it needs far more room: we suggest at least 2.7m x 2.9m.