Silentnight Memory 1000 Mirapocket Super King Mattress
The Silentnight Memory 1000 Mirapocket is a hybrid mattress that pairs a memory foam comfort layer with pocket springs, which means you get that gentle body-hugging feel on top and firmer, zoned support underneath.
- Minimises partner disturbance
- Purotex treatment combats allergens
- 60-night trial & 5-year guarantee
£543.67
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Silentnight Memory 1000 Mirapocket Mattress
More available sizes
Mattress details
Mattress
Silentnight Memory 1000 Mirapocket Mattress
Size
Firmness
Firm
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
25
Layers
2
Layer Details
Memory Foam Comfort Layer
A responsive memory foam layer that gently moulds to your body's contours, which means pressure points like hips and shoulders get some welcome relief. It absorbs energy as you move, so you feel cradled rather than bounced.
Mirapocket Spring Support System
1,000 individually nested pocket springs (counted on the king size, pro-rata for other sizes) that react independently to your body weight and movement. In practice this means zoned support that keeps your spine aligned and limits motion transfer across the bed.
Layer details from silentnight.co.uk product page, September 2026.
Key benefits
- 90cm each for two sharers: You get 90cm each for two people sharing, which means a restless partner is far enough away to become genuinely easy to ignore.
- Pocket springs work harder at this width: The Mirapocket springs react independently to movement, and combined with the extra width of the UK super king, night-time disturbance drops to almost nothing.
- Space for the whole household: When children wander in at 3am or a large dog claims the foot of the bed, everyone still gets a reasonable share of the mattress.
- Firm feel suits a shared bed: The medium/firm feel keeps the surface stable across its full width, so heavier and lighter sharers get consistent support rather than a rolling dip.
- Rotating is a two-person job: This mattress is single-sided and rotate-only, and at 180cm wide it's heavy work, so plan on doing it together.
This size suits you if...
You share the bed every night and a UK king still feels like a compromise, your partner is genuinely restless and distance matters more to you than any comfort layer, or children and pets regularly join you and you want everyone to fit without anyone hanging off the edge. Your bedroom should comfortably clear our suggested minimum of 3m x 2.9m.
Consider another size if...
Your room measures under our suggested 3m x 2.9m minimum, or you'd struggle to get a 180cm-wide mattress round your landing. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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FAQ's
What room size do I need for a super king Silentnight Memory 1000?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling more comfortable once you add wardrobes and bedside tables. That's our guidance, not Silentnight's. In a loft conversion, check the sloped ceiling too: a 180cm-wide bed limits which wall it can sit against.
Will the super king Memory 1000 fit up my stairs?
At 180 x 200cm it's the trickiest standard size to move, so measure your stairwell, landing turns and door swing before ordering. The Memory 1000 is a pocket sprung hybrid, so it can't be bent or folded the way an all-foam mattress sometimes can. If access is tight, the UK king is 30cm narrower.
Is the UK super king worth it over the king for this mattress?
If disturbance is your problem, yes. The UK super king is 30cm wider than the UK king at the same length, and paired with the Mirapocket springs' independent movement, a fidgety partner becomes much easier to sleep through. If your room is under 3m x 2.9m, the UK king is the safer buy.
How heavy is the super king Memory 1000 to rotate?
Silentnight doesn't publish a weight for this size, but a 180 x 200cm hybrid with pocket springs is a substantial thing to shift. Because it's single-sided you only rotate it, never flip it, which helps. Even so, treat it as a two-person job and clear space around the bed first.
Does the firm feel change in the larger sizes?
The feel itself doesn't change, but the spring count does: the 1,000 figure is counted on the king size, with counts adjusting pro-rata for other sizes, so the UK super king carries proportionally more springs across its width. Support stays consistent edge to edge, useful when three or four bodies end up in the bed.