Last seen for £942.65 at Mattress Man on 27th October 2026
Silentnight Memory Cool 2000 Super King Mattress
The Silentnight Memory Cool 2000 is a hybrid mattress that pairs graphite-infused memory foam with 2000 Mirapocket® springs.
- Graphite foam draws heat away
- Medium feel suits most sleepers
- 60-night trial & 5-year guarantee
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £683.10 at Mattress Man on 10th November 2026
Last seen for £823.50 at Mattress Man on 10th November 2026
Last seen for £942.65 at Mattress Man on 27th October 2026
Last seen for £683.10 at Mattress Man on 27th October 2026
Last seen for £585 at Mattress Man on 27th October 2026
Mattress details
Mattress
Silentnight Memory Cool 2000 Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
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.
Key benefits
- Distance beats any comfort layer: The 2000 Mirapocket springs already limit motion transfer, and 90cm each of width means a restless partner's fidgeting mostly happens too far away to matter.
- Room for the whole household: When a child pads in at 3am, a UK super king lets everyone keep a reasonable share rather than pushing one adult to the edge.
- Cool where bodies gather: More people in the bed means more warmth, so the graphite-infused Memory Cool foam, designed to draw heat away, matters more at this size than any other.
- A meaningful step up from the UK king: The UK super king is 30cm wider than the UK king and the same length, so all the extra space goes where sharing sleepers actually need it.
- Suits a large master bedroom: In a big period room a UK king can look undersized; allow at least 3m x 2.9m and this size sits in proportion.
This size suits you if...
You share every night and want space to spread out without touching, your children or a large dog treat your bed as partly theirs, or your partner is genuinely restless and you've decided extra width is the fix. Your bedroom should offer at least 3m x 2.9m, and around 3.5m x 3.2m feels comfortable once wardrobes and bedside tables go in.
Consider another size if...
Your bedroom is smaller than the 3m x 2.9m we suggest, or you'd struggle to walk round the bed comfortably. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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FAQ's
Will the Silentnight Memory Cool 2000 super king fit in my bedroom?
The mattress itself is 180 x 200cm, but the room needs to breathe around it. We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling right once you add furniture. Measure the walking space on each side and check the door can still swing fully before committing.
How much space does each person get on the Memory Cool 2000 super king?
Two people sharing get 90cm each. Combined with the 2000 individually pocketed springs, which respond to each sleeper separately, that width means one person's movements rarely reach the other. If a third small body arrives in the night, there's still a workable share for everyone.
Is the super king worth it over the king for the Memory Cool 2000?
It depends on your room and how you sleep. The UK super king is 30cm wider than the UK king and exactly the same length, so you're paying for width alone. If your partner is restless, or children and pets join you regularly, that extra 30cm is the whole point. In a smaller room, the UK king makes more sense.
Is the Memory Cool 2000 super king good for restless couples?
It's one of the better cases for this size. The Mirapocket springs isolate movement, the memory foam absorbs it further, and 90cm of width each puts real distance between you. No comfort layer fully cancels a fidgeter, but at this size their fidgeting mostly happens out of reach.
Can you get a super king Memory Cool 2000 up a narrow staircase?
It comes as a single piece rather than zip and link halves, and at 180cm wide with a 31cm depth it's an awkward carry. Measure your stairwell, any landing turns and the bedroom door before ordering, because tight period staircases are where this size most often comes unstuck.