Silentnight UltraGel CoolTouch 3000 Soft Super King Mattress
The Silentnight UltraGel CoolTouch 3000 is a soft hybrid mattress built around 3,000 springs in total, 2,000 Mirapocket springs plus 1,000 mini springs, topped with a gel infused comfort layer and a cool-to-touch SensICE surface.
- Soft feel without the trapped heat
- Minimises partner disturbance
- 60-night trial & 5-year guarantee
£1,195.43
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Silentnight UltraGel CoolTouch 3000 Soft Mattress
More available sizes
Mattress details
Mattress
Silentnight UltraGel CoolTouch 3000 Soft Mattress
Size
Firmness
Soft
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Gel
Depth (cm)
37
Layers
5
Layer Details
Cool-to-touch sleep surface
The SensICE fabric gives an instant cooling effect against your skin, drawing heat away from your body. In practice, that means the bed feels cool when you climb in rather than warming up straight away.
Gel infused comfort layer
A responsive gel infused layer that adapts as you move and bounces back. You get cushioning without the slow, stuck-in feeling some soft foams can have.
Extremely breathable foam
Silentnight states this foam is 5X more breathable than memory foam, working alongside the gel layer. Air moves through it more freely, which helps stop heat gathering under you overnight.
Plush pillowtop
A boxtop layer that adds a soft, soothing top surface. It's a big part of why this mattress feels so cushioned on first contact.
Spring support system
2,000 Mirapocket springs combine with 1,000 mini springs for pressure relief and undisturbed sleep. Each spring moves on its own, so you feel supported where you need it and less of your partner's movement.
Layer details from silentnight.co.uk product page, September 2026.
Key benefits
- 90cm of your own: Each sleeper gets 90cm of width, which means a partner who fidgets is far enough away that their movement rarely reaches your side.
- 15cm more each than a UK king: Stepping up from the UK king adds 30cm of width but no extra length, so the gain goes into the space between you.
- Room for small visitors: When a child climbs in after a bad dream, the UK super king leaves both adults a usable share of the soft surface instead of a narrow edge.
- Distance helps a soft mattress: On a soft pillowtop you settle deeper, and a wider bed means you are less likely to roll towards the dip your partner makes.
- Dogs without the squeeze: If a large dog sleeps on the bed most nights, the extra width lets it stretch out at the foot or between you without pushing anyone to the edge.
- Suits a big master bedroom: In a spacious period bedroom or a generous master, a UK king can look a little lost, while the UK super king fills the space properly.
This size suits you if...
You share the bed with a partner who tosses and turns and you want real distance between you, or children and pets regularly end up in the bed by morning. It also suits you if your bedroom comfortably exceeds our suggested minimum of 3m x 2.9m and you like a soft, cushioned feel.
Consider another size if...
Your bedroom is smaller than our suggested 3m x 2.9m, or the stairs and landing are tight. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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FAQ's
Is the UltraGel CoolTouch 3000 worth getting in a UK super king rather than a UK king?
If space between you matters most, yes. The UK super king is 30cm wider than the UK king and the same length, giving each person 90cm rather than 75cm. The trade-off is room size: we suggest at least 3m x 2.9m for the UK super king, against 2.7m x 2.9m for the UK king.
How much room does each person get on the UltraGel CoolTouch 3000 super king?
Two people sharing get 90cm each. That is 15cm more each than the UK king and 22.5cm more each than the UK double, which gives 67.5cm each. On a soft mattress where you settle into the pillowtop, that extra width means you are less likely to drift into your partner's side.
Is a UK super king big enough for two adults and a child?
For the occasional night, yes. With 90cm per adult, a young child who wanders in can fit between you without either of you being pushed to the edge. If a child sleeps with you every night, you will still feel a little snug, but far less than on a UK king or UK double.
Will a soft super king feel too warm with two people in it?
The extra width helps. At 90cm each, there is more space between two bodies, so less shared heat builds up in the middle. The SensICE cover and breathable foam do the rest. If you run hot, a UK super king gives this soft mattress a better chance of staying comfortable than a narrower size would.
Can a UK super king fit in a loft conversion bedroom?
Often it can, but the sloping ceiling usually decides which wall the bed goes against, since you need full headroom at the side where you get in and out. Measure the floor area with standing height, not the whole room. We suggest at least 3m x 2.9m, and around 3.5m x 3.2m feels more comfortable.