Last seen for £626.05 at Mattress Man on 1st October 2026
Silentnight 1000 Pocket Ortho Super King Mattress
The Silentnight 1000 Pocket Ortho is a pocket spring mattress from one of the UK's biggest sleep brands.
- Firm feel for back sleepers
- Springs move independently
- Hypoallergenic knitted cover
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
More available sizes
Last seen for £445.55 at Mattress Man on 1st October 2026
Last seen for £521.55 at Mattress Man on 10th November 2026
Last seen for £626.05 at Mattress Man on 1st October 2026
Last seen for £445.55 at Mattress Man on 10th November 2026
Last seen for £331.55 at Mattress Man on 10th November 2026
Mattress details
Mattress
Silentnight 1000 Pocket Ortho Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
Layers
3
Layer Details
Soft knit cover
A soft knitted cover with a hypoallergenic finish. It adds a little comfort at the surface and suits you if you want a cover that's gentler on sensitive sleepers.
Eco Comfort fibre filling
Eco Comfort Fibre filling layers sit under the cover and give gentle cushioning. It's a simple, fairly light comfort layer, so expect less sink-in than you'd get from deep foam.
Mirapocket spring core
1,000 individual Mirapocket springs, each working independently to spread weight evenly. This means support follows your shape, and you're less likely to feel a partner move.
Layer details from mattressman.co.uk and dunelm.com product pages, October 2026.
Key benefits
- 90cm each for two sharing: Each of you gets 90cm of width, so a restless partner has to reach a long way before they disturb you.
- Springs that stay on their side: The 1,000 Mirapocket springs move independently, which means movement on one half of this 180cm width barely carries across to yours.
- Room for night-time visitors: If children or a large dog routinely end up in your bed, a UK super king is the size where everyone still gets a fair share.
- Cooler across a bigger surface: Fibre fillings tend to sleep cooler than deep foam, and with 180cm of width you can also shift to a cooler patch on warm nights.
- A sensible spec at scale: Because the specification is straightforward, sizing up to a UK super king stays at the affordable end for a branded pocket spring mattress.
This size suits you if...
You share the bed every night and want the most space a standard UK size offers, your partner is genuinely restless and distance matters more to you than any comfort layer, or children and pets treat your bed as theirs too. You'll also want a firmer, supportive feel rather than a soft sink-in surface, and a bedroom of at least 3m x 2.9m to take it comfortably.
Consider another size if...
Your bedroom is smaller than the 3m x 2.9m we suggest for a UK super king, or you mostly sleep alone. We'd recommend the UK king instead: it's 30cm narrower, the same length, and we suggest at least 2.7m x 2.9m for it.
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FAQ's
How much space do two people get on a super king Silentnight 1000 Pocket Ortho?
You get 90cm each across the 180cm width, which is the same as each person having a single bed's worth of space. On this mattress that pairs well with the 1,000 Mirapocket springs, since each spring responds separately and your partner's movement stays largely on their side.
What room size do I need for the Silentnight 1000 Pocket Ortho in a super king?
We suggest a room of at least 3m x 2.9m for a UK super king, and that's our guidance rather than Silentnight's. Before ordering, check door swing and any wardrobe doors clear the bed, and measure landing turns on the way up. A mattress this wide is often the awkward part of the move.
Is the super king worth it over the UK king for a restless partner?
If disturbance is your main complaint, yes. The UK super king is 30cm wider than the UK king and the same length, and that extra distance does more to protect your sleep than any comfort layer would. The independent Mirapocket springs already limit motion transfer; the added width finishes the job.
Will a super king pocket spring mattress get up my stairs?
It's the size most likely to struggle. A pocket spring mattress can't be rolled or folded the way foam can, so a 180 x 200cm one needs clear landings and stairwell turns. Measure tight corners before you buy, and if access looks doubtful, the UK king is 30cm narrower and noticeably easier to manoeuvre.
Is this super king big enough for a family sharing with children?
It's the best mainstream size for it. At 6ft x 6ft 6in, a child wandering in at 3am can settle between you without pushing anyone to the edge, and the firmer ortho-style support holds up well under uneven weight. Large dogs who consider the bed theirs are also easier to accommodate here.