Silentnight Essentials Value King Size Mattress
The Silentnight Essentials Value Mattress is a firm, traditionally handcrafted UK open coil mattress.
- Zoned support for heavier builds
- Less roll-together for couples
- 60-night trial & 5-year guarantee
£239
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Silentnight Essentials Value Mattress
More available sizes
Last seen for £199 at Silentnight on 30th September 2026
Mattress details
Mattress
Silentnight Essentials Value Mattress
Size
Firmness
Soft
Construction
Latex
Open Coil Spring
Depth (cm)
21
Layers
4
Layer Details
Key benefits
- Proper space for two: At 150 x 200cm you each get 75cm of width, so partners on different schedules can get up early without disturbing whoever is still asleep.
- Less roll together, more room to use it: Miracoil's interconnected zoned springs are built to limit movement transfer, which means at king width you feel less of your partner's tossing and turning.
- Extra length for taller sleepers: The UK king is 10cm longer than the UK double, a difference anyone approaching six foot notices at their feet every night.
- A budget route into the king size: King is where many ranges get expensive, so a simple 323-spring, double-sided mattress makes the upgrade affordable, and you can compare the retailers listed on this page.
- Easier nights through pregnancy or recovery: The extra width leaves space for propping pillows and shifting position, and firmer zoned support helps when getting in and out of bed matters.
This size suits you if...
You share the bed every night and a double has started to feel cramped, especially if one of you gets up hours before the other. It also suits couples where one partner is tall, since the UK king's 200cm length removes the feet-off-the-end problem, or anyone wanting a firmer, low-cost way into the UK's most popular upgrade size.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king. In that case we'd recommend the UK double instead, where we suggest at least 2.6m x 2.8m of floor space.
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FAQ's
Is the Silentnight Essentials Value Mattress in a UK king good for couples?
Yes, and it's arguably the size where this mattress makes most sense for two. You get 75cm each for two people sharing, and the zoned Miracoil system is designed to reduce roll together, so you should feel less of each other's movement. Silentnight pitches the feel as firm, which lightweight side sleepers may find a little unforgiving.
Is the UK king long enough for someone over six foot?
At 200cm, the UK king is 10cm longer than the UK double, which is often the difference between feet hanging off the end and a comfortable stretch. If length is your main reason for upgrading, the UK king delivers it without the extra floor space a UK super king demands.
Will the UK king fit in my bedroom with furniture on both sides?
We suggest allowing at least 2.7m x 2.9m for a UK king, and more if you want wardrobes plus bedside tables on both sides. New build master bedrooms can feel smaller than they look once fitted furniture goes in, so measure the usable floor, not the room dimensions on the plan.
How much bigger is the king than the double for this mattress?
The UK king is 15cm wider and 10cm longer than the UK double. Spread across two sleepers, that extra width is a difference you feel nightly, particularly if a dog has claimed a corner of the bed or one of you sleeps restlessly. The mattress itself is identical in construction across both sizes.
Where can I find the best price on the Silentnight Essentials Value king?
Prices for this size move around, so we don't quote figures here. The prices shown on this page are updated as retailers change them, so compare the retailers listed and check each one's delivery terms before you buy. King is a widely stocked size, which tends to keep pricing competitive.