Silentnight UltraGel CoolTouch 3000 Firm Mattress
Mattress
Silentnight UltraGel CoolTouch 3000 Firm Mattress
Size
Firmness
Firm
Construction
Depth (cm)
37
Layers
5
Layer Details
- Cool-to-touch sleep surface. SensICE fabric gives an instant cooling effect against your skin, which means you feel a pleasant chill the moment you get in. It draws heat away from your body for a cooler night's sleep.
- Gel infused comfort layer. A responsive gel infused layer that reacts to your movements. As you shift position through the night, it adapts with you rather than leaving you to sink into one spot.
- Breathable foam. Silentnight describes this foam as 5X more breathable than memory foam, which means heat has somewhere to go instead of gathering beneath you. It works alongside the gel layer to keep the sleep surface feeling fresh.
- Plush pillowtop. A plush pillowtop adds a softer, cushioned feel at the surface for soothing relief. It takes a little of the edge off the firm support beneath.
- Pocket spring support system. 2000 Mirapocket springs combine with 1000 mini springs, giving pressure relief that adapts to your shape. Because each spring moves independently, a restless partner is less likely to disturb you.
Layer details from silentnight.co.uk product page, September 2026.
- Distance from a restless partner: With 90cm each, a partner who turns all night has room to do it without reaching you, and the independently moving springs keep leftover movement on their side.
- Space when the family piles in: When a child climbs in at 3am or a large dog settles at your feet, a 6ft wide bed means nobody ends up clinging to the edge.
- Wider than a UK king, same length: The UK super king is 30cm wider than the UK king but no longer, giving you 15cm more each without reaching further into the room.
- Two hot sleepers, kept apart: Couples who both run warm get space between them as well as the SensICE cool-to-touch surface and gel layer drawing heat away from each of you.
- In proportion in a large room: In a generous period bedroom or large master, where a UK king can look slightly lost, the UK super king fills the space properly.
This size suits you if...
You share with a partner who moves a lot and want real distance between you, children or a large dog regularly join you overnight, or your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is smaller than 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead, which is 30cm narrower at the same length. We suggest at least 2.7m x 2.9m for the UK king.
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Silentnight UltraGel CoolTouch 3000 UK super king vs UK king: how much extra space do you get?
The UK super king is 30cm wider than the UK king and the same length, at 200cm. For two people sharing, the UK super king gives 90cm each against 75cm each on the UK king, so 15cm more per person. You will need a larger room, though: we suggest at least 3m x 2.9m, compared with 2.7m x 2.9m for the UK king.
Is the UK super king Silentnight UltraGel CoolTouch 3000 good for a restless partner?
It is the best size of this mattress for it. The pocket springs move independently, which helps keep movement on one side, but distance does more than any spring system. With 90cm each on the UK super king, a partner who flips over repeatedly is far less likely to wake you than on a narrower size.
Is it worth sizing up from a UK double to a UK super king Silentnight UltraGel CoolTouch 3000?
If you share every night, very likely. The UK super king is 45cm wider and 10cm longer than the UK double, giving each of you 22.5cm more width. The catch is the room: we suggest at least 3m x 2.9m for the UK super king, against 2.6m x 2.8m for the UK double.
Can two adults and a child sleep on a Silentnight UltraGel CoolTouch 3000 super king?
For the odd night when a little one wanders in, yes, comfortably. A 6ft width means the adults are not squeezed to the edges to make room. The firm feel suits back and front sleeping adults, although a lightweight side sleeper may find it a little unforgiving at the shoulder and hip.
Will a Silentnight UltraGel CoolTouch 3000 super king fit in a loft conversion bedroom?
Only if the room clears our suggested minimum of 3m x 2.9m with full head height where you need it. The slope usually decides which wall the bed takes. At 37cm deep, this mattress sits fairly high, so check sitting-up clearance under the ceiling, plus door swing and any tight landing turns on the way up.