Silentnight Classic Mirapocket 1000 King Size Mattress
The Silentnight Classic Mirapocket 1000 Mattress has 1000 pocket springs with zoned support under a deep fibre layer, which means support that responds to your weight and a breathable surface on top.
- Zoned support across your body
- Breathable fibre layer
- Recycled-bottle fibre filling
£383.54
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Silentnight Classic Mirapocket 1000 Mattress
More available sizes
Mattress details
Mattress
Silentnight Classic Mirapocket 1000 Mattress
Size
Firmness
Construction
Eco-Friendly
Pocket Spring
Depth (cm)
24
Layers
3
Layer Details
Knitted stretch fabric cover
A soft-to-touch knitted stretch fabric upholsters the mattress. It gives you a gentle, comfortable surface against your skin.
Eco-Comfort fibre layer
A deep layer of fibre filling sits on top of the pocket springs and is described as breathable and made from recycled plastic bottles. It cushions you above the springs and lets the surface breathe.
1000 pocket spring core
1000 pocket springs, each moving up and down like a piston as weight is applied. Each spring works on its own, so the mattress supports your body more precisely.
Layer details from bedworldhull.com product page, October 2026.
Key benefits
- More room each: At 75cm each for two people sharing, the UK king gives you 7.5cm more each than the UK double, which means fewer knees and elbows meeting in the night.
- Length for a taller partner: The UK king is 200cm long, 10cm longer than the UK double, so a partner nearing six foot is less likely to find their feet off the end.
- Less disturbance from an early riser: Each of the 1000 pocket springs moves on its own, and with more width between you, one person getting up for work should unsettle the other a little less.
- Usable edges: The wire edge border gives the sides some structure, which helps when you're both spreading out to the full 150cm rather than drifting into the middle.
- Standard bedding fits: At 5ft x 6ft 6in it's a standard UK king, so ordinary king sheets and a king duvet fit without hunting for unusual sizes.
This size suits you if...
You share the bed every night and keep colliding on a UK double, one of you gets up hours before the other and you'd like that to wake nobody, or a tall partner regularly finds their feet past the end of the mattress.
Consider another size if...
Your bedroom measures under our suggested 2.7m x 2.9m once wardrobes and bedside tables are in. We'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the Silentnight Classic Mirapocket 1000 UK king big enough for two adults?
For most couples, yes. The UK king gives 75cm each for two people sharing, which is 7.5cm more each than the UK double. If you want more room still, the UK super king gives 90cm each, although it needs a larger bedroom: we suggest at least 3m x 2.9m for it.
What size bedroom do I need for a UK king mattress?
We suggest at least 2.7m x 2.9m, with 3.2m x 3.2m feeling comfortable. New build master bedrooms often look roomy on a floor plan and then shrink once fitted wardrobes go in, so measure with the doors open. Check the stairs and landing too, then compare the retailers listed on this page.
Is a UK king mattress long enough for someone over 6ft?
The UK king is 200cm, or 6ft 6in, long. That's 10cm more than a UK double, which gives a tall sleeper a little more room before their feet reach the end. If one of you is well over six foot, the extra length may matter more to you than the extra width.
Will I feel my partner moving on a king size Mirapocket 1000?
You should feel them less than on a narrower bed. The 1000 pocket springs each move on their own, so movement on one side travels less across the mattress, and at 75cm each you have more space between you. It helps when partners keep different hours, though no spring mattress removes movement entirely.
What bedding fits a Silentnight Mirapocket 1000 in UK king?
Standard UK king sheets fit the 150 x 200cm size, and a 230 x 220cm king duvet covers it well. The mattress is 24cm deep, so check that the fitted sheet's pocket depth suits a 24cm mattress before you buy.