Firmness
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)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
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. With prices from £248 to £428 across four retailers, it is basic, yet honestly priced for what it offers.
Key Features & what's inside
- 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.
Who's it NOT for?
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.
Silentnight Memory 800 Pocket Mattress
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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 dedicated firm-mattress fans 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. Prices range from £248 to £428 depending on size, and it is stocked by four retailers.
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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