Silentnight UltraGel CoolTouch 3000 Firm Small Double Mattress
The Silentnight UltraGel CoolTouch 3000 Firm is a hybrid mattress built around temperature control.
- Cool-touch surface for hot sleepers
- Firm support for back & front sleepers
- 60-night trial & 5-year guarantee
£834
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Silentnight UltraGel CoolTouch 3000 Firm Mattress
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Mattress details
Mattress
Silentnight UltraGel CoolTouch 3000 Firm Mattress
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Gel
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.
Key benefits
- Room to sprawl on your own: The UK small double is 30cm wider than the UK single, so a solo sleeper can stretch an arm or knee out and still stay on the cool surface.
- Fits where a double won't: Being 15cm narrower than the UK double, it can leave a box room door or wardrobe clear to open, and we suggest a room of at least 2.4m x 2.8m.
- Space to shift when you run warm: A hot sleeper alone has the full 120cm width of gel-infused comfort layer to move across, which means you can change position rather than lying in your own heat.
- Steady for guests sharing: The independently moving springs help limit disturbance when a visiting couple shares the UK small double for a night or two, although it feels snug for nightly use.
- Easy bedding and frames: The UK small double is a standard 4ft size, so fitted sheets and bed frames are easy to find when you're furnishing a spare room.
This size suits you if...
You sleep alone and keep drifting over the edge of a single, or you're furnishing a guest room of at least our suggested 2.4m x 2.8m where couples only stay the odd night and you want firm support that stays cool.
Consider another size if...
You share a bed with a partner every night. We'd recommend the UK double instead, which gives 67.5cm each for two sharing; we suggest at least 2.6m x 2.8m for the UK double.
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FAQ's
Is the Silentnight CoolTouch 3000 small double big enough for a couple?
For a weekend guest stay, yes, and the independent springs help keep one sleeper's movement from waking the other. For two people every night it is tight, especially for hot sleepers who want space between them. The UK double gives 67.5cm each for two sharing, and the UK king gives 75cm each.
What size bedroom do I need for a UK small double mattress?
We suggest allowing at least 2.4m x 2.8m for a UK small double. That leaves space to walk round the bed and open drawers. If your room is smaller, the UK single needs less floor: we suggest at least 2.1m x 2.8m for the UK single.
Will a 4ft small double fit in a loft conversion?
Often it will, because at 120cm wide the UK small double is 15cm narrower than the UK double, which can keep one side of the bed where there is enough headroom to get in and out. Measure the floor where you can actually stand, rather than the full width of the room, before ordering.
Small double or single CoolTouch 3000 for a teenager?
If your teenager has outgrown a single but the room is short on floor space, the UK small double is 30cm wider than the UK single at the same length. That extra width suits a growing sleeper who sprawls. Allow at least 2.4m x 2.8m for the UK small double.
How tall can you be on a UK small double?
The UK small double is 190cm long (6ft 3in), the same length as the UK double. If you're tall and your feet reach the end, the UK king is 10cm longer; we suggest at least 2.7m x 2.9m for the UK king.