Silentnight Lift Replenish Hybrid 2000 Mattress Firm
Mattress
Silentnight Lift Replenish Hybrid 2000 Mattress Firm
Size
Firmness
Firm
Construction
Depth (cm)
32
Layers
4
Layer Details
- Latex. A plush, adaptive material that responds to your body shape, which means pressure relief at your shoulders and hips without losing the firm feel underneath. It sits at the top, so it's the surface you'll actually feel.
- EcoMemory Fibre. Made sustainably from recycled plastic, this layer adds cushioning while letting air move through it. That breathability helps you stay cooler than a solid foam layer typically would.
- Eco Comfort Fibre. Silentnight's eco-friendly fibres, also made from recycled materials. They add a further layer of soft padding between you and the springs.
- Mirapocket Springs. 2000 pocket springs that respond individually to your shape, with zoning to support spinal alignment and posture. In practice that means less roll-together with a partner and targeted pressure relief where you need it.
Layer details from mattressonline.co.uk product page, September 2026.
- 90cm of width each: Two people sharing get 90cm each, which means a partner who turns over frequently becomes far easier to sleep through.
- Firm support across the full width: The 2000 zoned Mirapocket springs respond individually, so movement on one side of a 180cm bed barely registers on the other.
- Room for the whole household: When children or a large dog treat your bed as theirs, a UK super king means the adults still get a proper share.
- Latex comfort at scale: The latex top layer contours to each sleeper separately, so a heavier and lighter partner can both get pressure relief on their own side.
- Breathable across a big surface: The recycled EcoMemory and Eco Comfort fibre layers let air move through, useful because a larger mattress under two adults holds more warmth.
This size suits you if...
You share every night and find even a UK king leaves you aware of each other's movements, you have children or pets who regularly join you and still want space of your own, or you have a large master bedroom where a smaller bed would look and feel undersized. The firm feel suits back and front sleepers in particular, so a couple who both like plenty of pushback will do well here.
Consider another size if...
Your bedroom is smaller than the 3m x 2.9m we suggest as a minimum, or you sleep alone and would rather spend on comfort than width. We'd recommend the UK king instead, which is 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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How much space do two people get on a super king Silentnight Lift Replenish?
The UK super king measures 180 x 200cm, which works out at 90cm each for two people sharing. On this mattress that space is backed by 2000 individually responding pocket springs, so you get both physical distance from your partner and very little motion transfer across it.
Is the super king worth it over the king for restless sleepers?
If disturbance is your main complaint, yes. The UK super king is 30cm wider than the UK king, and distance does more for restless sleepers than any comfort layer can. The zoned springs already isolate movement well; the extra width means a partner's turning happens further away from you.
Will a firm mattress feel different in a super king size?
The firm feel itself is identical across sizes, but a couple with different body weights notices the width. With 90cm each, the latex layer and zoned springs support each of you independently, so a heavier partner sinking in slightly more does not tilt the surface under the lighter one.
What size room do I need for this mattress in a super king?
We suggest at least 3m x 2.9m, and that is our guidance rather than Silentnight's. That allows walking space and bedside tables on both sides. In a loft conversion, check the slope too: a 180cm wide bed limits which wall it can sit against. Anything smaller and the UK king, at 2.7m x 2.9m minimum, is the safer call.
Is a super king too big if children climb in at night?
It is the size we would point you to for exactly that. At 180cm wide there is genuine room for a child between two adults without anyone clinging to an edge, and the firm surface stays supportive rather than sagging toward the heaviest sleeper. The same logic applies to a large dog with a routine.