Silentnight SleepResponse Relieve 3000 Combination King Size Mattress
The Silentnight SleepResponse Relieve 3000 Combination Mattress pairs breathable latex with a CoolEase cover and Mirapocket zoned springs, which means pressure relief and cooler, better-aligned sleep.
- Cooler, more comfortable nights
- Latex eases pressure as you sleep
- Zoned support for spinal alignment
£2,099
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Silentnight SleepResponse Relieve 3000 Combination Mattress
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Mattress details
Mattress
Silentnight SleepResponse Relieve 3000 Combination Mattress
Size
Firmness
Construction
Latex
Pocket Spring
Depth (cm)
Layers
3
Layer Details
Box top with CoolEase cover
An advanced box top wrapped in a CoolEase cover that Silentnight says draws heat from your body. That means a surface designed to keep you cool and comfortable.
Breathable latex
Latex inside the mattress that relieves pressure on your body as you sleep. Silentnight says it has a natural cooling effect, so you get cushioning without as much heat.
Mirapocket zoned support system
Silentnight's zoned pocket spring system, which it describes as scientifically proven to improve spinal alignment and posture. It gives different parts of your body support where it's needed.
Layer details from swiftfurnitureworks.com product page, November 2026.
Key benefits
- More room each than a UK double: You each get 7.5cm more width than in a UK double, which means a little more space between you before you meet in the middle.
- Length for taller partners: At 200cm, the UK king is 10cm longer than a UK double, so someone near six foot is less likely to have their feet hanging off the end.
- Less heat between two bodies: Two people put out a fair bit of warmth, and the latex and CoolEase cover are both described by Silentnight as having a cooling effect.
- Space for split schedules: With 75cm each in a UK king, there's a little more distance between you, which should help if one of you gets up at dawn while the other sleeps on.
- Zoned support with room to stretch: Silentnight says the Mirapocket zoned springs are proven to improve spinal alignment, and the extra width means you're less likely to curl up awkwardly to give your partner room.
This size suits you if...
You share the bed every night and wake when your partner turns over, one of you is close to or over six foot and keeps finding the end of a UK double, or you're expecting a baby and want room for a pregnancy pillow without pushing your partner to the edge.
Consider another size if...
Your bedroom is under our suggested 2.7m x 2.9m, which is common in new build master bedrooms once wardrobes go in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
What room size do I need for a Silentnight SleepResponse Relieve 3000 UK king?
We suggest at least 2.7m x 2.9m, and 3.2m x 3.2m will feel comfortable. New build master bedrooms often look generous empty but shrink once fitted wardrobes are in, so measure from the wardrobe doors rather than the walls.
How much space does each person get on a UK king mattress?
Two people sharing get 75cm each. That's 7.5cm more each than a UK double, and 15cm less each than a UK super king, so it sits between the two for couples who want breathing room without the larger footprint.
Is a UK king long enough for someone over six foot?
It's 200cm long, which is 10cm longer than a UK double. For a tall partner, that length often makes more difference than the width, because feet stop pressing against the footboard.
Will I feel my partner moving on the Relieve 3000 in a UK king?
Silentnight doesn't make a specific claim about motion for this mattress. What the UK king does give you is 75cm each, a little more distance between you than a UK double, which should help if your schedules differ.
Should I get the UK king or UK super king Relieve 3000 with a dog on the bed?
A dog that sprawls takes width you'd otherwise have. The UK super king gives 90cm each against 75cm in the UK king, but it needs at least 3m x 2.9m. If your room allows that, the UK super king leaves more for everyone.