Last seen from £358.10 at Archers Sleepcentre on 8th September 2026
Silentnight Just Sleep Bliss Gel Mirapocket 1000 Mattress in a Box
The Silentnight Just Sleep Bliss Gel Mirapocket 1000 is a rolled mattress that arrives compressed in a box, which means it's easier to get up stairs and into the bedroom than a traditional flat delivery.
- Gentle medium-soft feel
- Zoned support for spinal alignment
- Hypoallergenic soft-knit surface
The Just Sleep Bliss Gel Mirapocket 1000 comes from Silentnight, one of the UK's better-known mattress makers. You can buy it in UK Single, Double and King. We don't yet hold full construction details for this model, so if you need specifics on depth or feel before committing, it's sensible to check with the retailer first.
Mattress specifications
Firmness
Medium Soft
Type
Pocket Spring
Depth (cm)
Number of Layers
2
Trial Period (nights)
Warranty (years)
Price Range
Best Sleeping Position(s)
Side Sleeping
Certifications
Assessed from mattress data provided by our UK retail partners, captured September 2026, and from regular price comparison across those retailers.
Why should you choose this mattress?
This is a medium-soft pocket spring mattress, so it mainly suits people who like a gentler, more cushioned feel, although those who want a firmer surface may find it too soft. The 1000 Mirapocket springs respond independently to your movements and are zoned for support, which Silentnight says helps spinal alignment. A gel-infused comfort layer sits on top, and the hypoallergenic soft-knit surface is a sensible choice if allergens bother you. It's 24cm deep and arrives rolled, so it's easy to carry to a bedroom. Silentnight also lists a 10-year guarantee.
Key features & layer details
Gel-infused comfort layer
A gel-infused comfort layer at the top of the mattress. For you, that means a soft, comfortable surface to settle into at night.
Mirapocket spring unit
1000 Mirapocket springs that respond independently to your body's movements, with zoned support. This means the springs adjust to each part of your body, which Silentnight says improves spinal alignment.
Layer details from marksandspencer.com product page, October 2026.
Best suited for?
Couples
Available in Double and King, this mattress gives two sleepers a shared sleeping surface in the sizes most couples buy for a standard bedroom.
Guest rooms
Coming in a box from a well-known UK maker, it is easy to bring upstairs and set up in a spare room.
Hard to say with confidence, as we don't hold firmness or construction details for this model. If you need a Super King, you're out of luck: it's only listed in UK Single, Double and King. And if you'd rather try before you buy, a boxed mattress bought online may not suit you.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Silentnight Just Sleep Bliss Gel Mirapocket 1000 Mattress in a Box
Last seen for £358.10 at Archers Sleepcentre on 8th September 2026
Last seen for £443.38 at Archers Sleepcentre on 8th September 2026
Last seen for £488.58 at Archers Sleepcentre on 8th September 2026
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FAQ's
How much does the silentnight just sleep bliss gel mirapocket 1000 cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. The price is for a boxed, rolled delivery rather than a two-person flat delivery.
What sizes does the silentnight bliss gel mirapocket 1000 come in?
It's available in three UK sizes: Single, Double and King. There's no Super King option listed at the moment, so larger beds will need a different model.
Does the silentnight bliss gel mirapocket 1000 come rolled in a box?
Yes. It arrives compressed and rolled in a box, which makes it much easier to move through hallways and up stairs. You'll need to unbox it and let it expand before sleeping on it.
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