Silentnight 7 Zone Memory Foam Mattress
Mattress
Silentnight 7 Zone Memory Foam Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
20
Layers
3
Layer Details
- Soft Touch Quilted Cover. A quilted fabric finish that gives a smooth, breathable sleep surface. It adds a touch of softness before you reach the foam beneath.
- Memory Foam. This comfort layer reacts to your body's contours, which means it cushions key pressure points like hips and shoulders. You get a personalised sleeping surface that adapts as you move.
- 7-Zone Support System. The base layer delivers enhanced support to different areas of the body. In practice, that helps keep your natural alignment from head to toe.
Layer details from mattressnextday.co.uk product page, September 2026.
- 75cm each for two people sharing: With 75cm of width apiece, you can both turn over without negotiating, which suits couples who found a smaller size a squeeze.
- Foam that keeps movement local: Memory foam absorbs motion rather than transmitting it, so on a UK king one partner leaving for an early shift is far less likely to wake the other.
- 10cm longer than the UK double: At 200cm long, the UK king gives anyone approaching 6ft room to stretch out without their feet meeting the end of the bed.
- 7 zones across a bigger surface: The 7-zone support system gives each area of your body its own level of support, and each sleeper gets their own zones rather than sharing them.
- Fits a normal master bedroom: We suggest allowing at least 2.7m x 2.9m, which most UK master bedrooms manage, unlike the UK super king's larger footprint.
This size suits you if...
You share the bed every night and want more personal space than a UK double offers, especially if one of you gets up hours before the other, since the memory foam and the extra width work together to keep that disturbance down. It also suits couples where one partner is approaching 6ft, because the 200cm length is as much of an upgrade as the width.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest for a UK king. In that case we'd recommend the UK double instead, which needs at least 2.6m x 2.8m and still gives couples a proper shared bed.
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Is the Silentnight 7 Zone memory foam good for couples in a UK king?
Yes, with one caveat. The 75cm of width each is generous, and memory foam absorbs movement well, so partners on different schedules disturb each other less. The caveat is feel: the retailer listing describes it as firm, so a lightweight side sleeper sharing the bed may find it a little unforgiving.
Will the UK king version suit a tall sleeper?
It should. The UK king is 200cm long, 10cm longer than the UK double, which is a genuine relief if one of you is approaching 6ft. If width matters more than length to you, the UK super king is 30cm wider but exactly the same length, so sizing up buys space, not extra legroom.
What room size do I need for the Silentnight 7 Zone in a UK king?
We suggest allowing at least 2.7m x 2.9m, with something nearer 3.2m x 3.2m feeling comfortable. New build master bedrooms can be tighter than they first appear once wardrobes go in, so measure the usable floor after furniture, not the bare room, before committing to a 150 x 200cm mattress.
Should I choose the UK king or UK super king in this mattress?
The UK king is 30cm narrower than the UK super king, and both are 200cm long. If you have a large room, allow at least 3m x 2.9m and the UK super king gives each of you more space still. For most couples upgrading from a UK double, the UK king is the easier fit.
Where can I buy the Silentnight 7 Zone in a UK king?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so it's worth checking back if you're not ready to buy today, since the price of a UK king can move between visits.