Silentnight Lift Renew Hybrid 1200 Mattress
Mattress
Silentnight Lift Renew Hybrid 1200 Mattress
Size
Firmness
Medium
Construction
Depth (cm)
26
Layers
3
Layer Details
- Intense™ sleep surface. The sleep surface is woven with Intense fabric technology, which Silentnight says is scientifically proven to help your body relax for deeper, undisturbed sleep. It's Oeko-tex approved and free from FR chemical treatments.
- Luxurious Latex. A latex comfort layer that moves when you do, so your weight stays evenly distributed through the night. That helps relieve pressure and soothe aches and pains, particularly around the hips and shoulders where side sleepers tend to feel it.
- 1200 Mirapocket® springs. Individual pocket springs adjust to your body weight, giving ease of movement and reducing disturbance from a restless partner. The zoned support is scientifically proven, according to Silentnight, to improve spinal alignment and posture.
Layer details from silentnight.co.uk product page, September 2026.
- 90cm each, every night: Two people sharing get 90cm of width apiece, which means a restless partner can turn over without pulling you awake with them.
- Springs that keep disturbance local: The 1,200 Mirapocket springs adjust individually to body weight, and across a 180cm width that movement has much further to travel before it reaches you.
- Room for the small hours visitors: At 6ft x 6ft 6in there's genuine space for a wandering child or a large dog without either adult ending up on the edge.
- Latex that doesn't trap you: The latex comfort layer moves with you rather than moulding slowly around you, which makes shifting position across a big surface feel easy rather than effortful.
- Extra length as well as width: At 200cm long, the UK super king gives taller sleepers 10cm more than the UK double, so feet stay on the mattress rather than off the end.
This size suits you if...
You share the bed every night and want enough width that neither of you notices the other, your children or pets treat your bed as an open invitation, or your bedroom is large enough that a UK king would look a little lost. Allow at least 3m x 2.9m of floor space, with around 3.5m x 3.2m feeling comfortable.
Consider another size if...
Your room falls short of the 3m x 2.9m we suggest, or you'd rather spend less on bedding and sheets. We'd recommend the UK king instead: it's 30cm narrower but the same length, and needs at least 2.7m x 2.9m.
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How much bigger is a super king than the UK king version of this mattress?
The UK super king is 30cm wider than the UK king, and the two are exactly the same length at 200cm. All of the extra space goes into width, which is where couples feel it, so you gain elbow room rather than legroom by sizing up.
Is the Silentnight Lift Renew Hybrid 1200 super king good for a restless partner?
It's one of the better reasons to choose this size. The 1,200 Mirapocket springs respond individually to weight, so movement stays fairly localised, and with 90cm of width each there's simply more mattress between you and the fidgeting. Distance does a lot of the work here.
What room size do I need for a super king mattress?
We suggest at least 3m x 2.9m for a UK super king, and around 3.5m x 3.2m feels comfortable, leaving space to walk round both sides and open drawers. Measure with the door swing in mind too; at 180cm wide, this size dominates a smaller room.
Is a super king big enough for a couple sharing with a child?
Usually, yes. With 90cm of width per adult, a child climbing in during the night takes a share without pushing anyone to the edge. The latex layer keeps the surface responsive rather than sinky, so shuffling everyone along at 3am is still a shuffle, but a manageable one.
Will the super king suit us if a large dog shares the bed?
Better than any smaller size would. The UK super king's 6ft of width means a dog stretched across the foot or side still leaves both adults proper space, and the zoned pocket springs adjust to different weights along the surface rather than tilting everyone toward the heaviest occupant.