Silentnight Memory Cool 2000 Mattress
Mattress
Silentnight Memory Cool 2000 Mattress
Size
Firmness
Construction
Depth (cm)
31
Layers
2
Layer Details
- Memory Cool™. A graphite-infused memory foam that moulds to your body to relieve pressure, which means less tossing to find a comfortable position. The graphite actively transfers heat away from you, and Silentnight claims this makes it 15% cooler than standard memory foam.
- Mirapocket® springs. 2000 Mirapocket® springs, each held in its own individual pocket so they respond to every movement independently. In practice that means zoned support for your back and less motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
- A shared bed that fits the room: At 135cm wide, the UK double leaves space for wardrobes and drawers in bedrooms where a UK king would dominate.
- 2000 springs across 135cm: Each Mirapocket spring moves independently, which means a partner turning over on their half of the bed is far less likely to wake you.
- Cooling matters more when you share: Two bodies generate more heat than one, so the graphite-infused foam's heat-drawing design is at its most useful in a shared double.
- Room for bedside tables on both sides: In a room meeting our suggested 2.6m x 2.8m minimum, the UK double usually still allows a table each, which a UK king often doesn't.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet fit this size, and both are stocked everywhere at every price point.
This size suits you if...
You share the bed every night and your room sits closer to our suggested 2.6m x 2.8m minimum than to a king-friendly footprint, you want bedside tables on both sides without squeezing past the foot of the bed, or you sleep alone and want space to stretch out, perhaps with a dog or cat claiming a corner.
Consider another size if...
You and your partner both want more than 67.5cm of width each and your room measures at least 2.7m x 2.9m. We'd recommend the UK king instead, which is 15cm wider and 10cm longer than the UK double.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Is the Silentnight Memory Cool 2000 in a UK double big enough for a couple?
For most couples, yes. Two people sharing get 67.5cm of width each, which is the long standing UK standard, and the 2000 Mirapocket springs keep movement on one side from travelling across to the other. Broad-shouldered sleepers or anyone who sprawls may feel the limit, in which case sizing up to the UK king is the sensible fix.
What bedroom size do I need for the Memory Cool 2000 UK double?
We suggest a room of at least 2.6m x 2.8m for the UK double, with around 3m x 3m the comfortable norm. That allows walking space on both sides and, in most layouts, a bedside table each. This is our own guidance rather than Silentnight's, so measure your room before ordering.
Should I buy the Memory Cool 2000 in a UK double or size up to the UK king?
The UK double is 15cm narrower and 10cm shorter than the UK king, so it fits rooms the larger size would crowd. If your room offers at least 2.7m x 2.9m and you both want more personal space, the UK king is the better long-term buy. If space or budget is tight, the UK double still sleeps two comfortably.
Is the UK double Memory Cool 2000 a good choice for a guest room?
Yes, it's arguably the ideal guest room size, because it sleeps visiting couples as well as solo guests. The medium feel suits most people, which matters when you can't predict who'll be sleeping on it, and the memory foam layer relieves pressure without needing a long adjustment period.
How much bigger is the UK double than the UK small double for this mattress?
The UK double is 15cm wider than the UK small double, and both are the same 190cm length. That extra width is meaningful for two people sharing every night. If you sleep alone in a compact room, the UK small double may serve you well: we suggest at least 2.4m x 2.8m of floor space for it.