Silentnight Memory 800 Pocket Mattress
The Silentnight Memory 800 Pocket is a hybrid mattress that pairs a memory foam comfort layer with 800 Mirapocket springs, which means you get pressure relief on top and independent, zoned support underneath.
- Eases pressure at shoulders & hips
- Medium feel suits back & side sleepers
- 60-night trial & 5-year guarantee
£248
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The Silentnight Memory 800 Pocket is rated as medium by Silentnight, a firmness that suits most sleepers, although anyone who prefers a very firm feel may find it a little soft. At 24cm deep, it sits at the affordable end of the hybrid market, and it comes with a 60-night trial and a 5-year guarantee from Silentnight. Five UK sizes are available, from single up to super king.
Mattress specifications
Firmness
Medium
Type
Hybrid
Depth (cm)
24
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
5
Price Range
£248 to £428
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This mattress makes sense if you want the classic hybrid combination without a big spend. The memory foam moulds to your body to ease pressure at the shoulders and hips, while the 800 pocket springs move independently, which means less disturbance when a partner shifts in the night and better spinal alignment. The medium firmness is a safe middle ground for back and side sleepers. Yes, the spec is simpler than pricier hybrids, but the 60-night trial gives you time to be sure, and the 5-year guarantee adds reassurance. It is basic, yet fairly priced for what it offers.
Key features & layer details
Memory foam
The top layer gently moulds to the contours of your body, which means pressure points like hips and shoulders feel cushioned rather than pressed against the springs. It provides that slow, hugging comfort memory foam is known for.
Mirapocket springs
Beneath the foam, 800 Mirapocket springs respond independently to your movements, giving zoned support and improved spinal alignment. Because each spring works on its own, motion transfer across the bed is reduced.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Side sleepers
The memory foam top layer moulds to the body, which means the shoulders and hips feel cushioned rather than pressed against the springs.
Back sleepers
Medium firmness is a safe middle ground, and the 800 pocket springs respond independently to give zoned support and improved spinal alignment.
Couples
Each of the 800 Mirapocket springs works on its own, which reduces motion transfer so you feel less disturbance when your partner shifts in the night.
Budget buyers
It sits at the affordable end of the hybrid market, giving you the classic foam and spring combination without a big spend.
If you sleep hot, memory foam can hold warmth, so a breathable spring-only or natural-fibre mattress may suit you better. Those who want a very firm or very soft feel should look elsewhere, as this is a medium. Heavier sleepers wanting deep, reinforced support may also outgrow it.
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 Memory 800 Pocket Mattress
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FAQ's
How firm is the Silentnight Memory 800 Pocket mattress?
Silentnight rates it as medium. That places it in the middle of the range, which suits most back and side sleepers, although lightweight side sleepers may find it slightly firm, and if you prefer sleeping on a firm mattress, you may find it a touch soft.
Does the Silentnight Memory 800 come with a trial?
Yes. Silentnight offers a 60-night trial on this mattress, so you can sleep on it at home before committing. It also comes with a 5-year guarantee from Silentnight.
How deep is the Silentnight Memory 800 Pocket mattress?
It is 24cm deep, made up of a memory foam comfort layer over 800 Mirapocket springs. Standard fitted sheets should fit without any trouble.
What sizes does the Silentnight Memory 800 come in?
Five UK sizes: single, small double, double, king and super king.
How long does delivery take for the Silentnight Memory 800?
Silentnight lists delivery at 14 days when ordering from its own site. Delivery times may differ if you buy through one of the retailers that stock it.
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