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.
- Space that supports the spring count: With 75cm each for two people sharing, each of you sits over your own patch of pocket springs rather than rolling into a shared dip.
- Less disturbance on different schedules: If one of you gets up hours before the other, the individually adjusting springs plus the extra width mean the early riser leaves quietly.
- Length for taller sleepers: At 200cm long, the UK king is 10cm longer than the UK Double, a genuine relief for anyone approaching six foot.
- Latex feels roomier than it sounds: The latex layer moves with you rather than holding you in place, so repositioning across the wider surface takes no effort.
- Room for the dog: If a dog claims the foot of the bed most nights, the extra 15cm of width over the UK Double stops that costing you sleep.
This size suits you if...
You share the bed every night and a double has started to feel tight, one of you is approaching six foot and wants toes on the mattress rather than off it, or your sleep schedules differ and you need movement on one side to stay on one side. The medium feel and springy latex suit couples who each want their own comfortable territory.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, or you sleep alone and the width would go unused. We'd recommend the UK double instead, which needs around 2.6m x 2.8m.
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Is a UK king big enough for a couple who share with a dog?
Usually, yes. The UK king gives 75cm each for two people sharing, so a dog curled at the foot takes space from the length rather than forcing you both to the edges. If the dog is large and sleeps between you nightly, the UK super king, 30cm wider, is the calmer option.
Will the Silentnight Lift Renew Hybrid 1200 UK king fit my bedroom?
The mattress measures 150 x 200cm, or 5ft x 6ft 6in. We suggest a room of at least 2.7m x 2.9m so you can walk round both sides and open drawers. Measure after wardrobes and radiators, particularly in a new build master, which can be smaller than it first looks once furniture is in.
Is the UK king long enough if one of us is over six foot?
At 200cm long it accommodates most people up to around 6ft 6in comfortably, and it's 10cm longer than the UK double, which is often the difference between feet on the mattress and feet hanging off it. Sizing up further wouldn't help here, as the UK super king is the same length.
Does the king size help with partner disturbance on this mattress?
It helps in two ways. The 1,200 Mirapocket springs adjust individually, so movement on one side transfers less to the other, and 75cm each for two people sharing means you're rarely close enough to feel it anyway. Couples on different schedules tend to notice the combination most.
Should we choose the UK king or the UK super king for this Silentnight?
The UK king suits most couples: plenty of personal space without demanding a large room. The UK super king is 30cm wider and the same length, and needs at least 3m x 2.9m by our guidance. Choose it if your room comfortably clears that and you want maximum separation.