Last seen for £395 at Mattress Man on 10th November 2026
Silentnight Memory 3 Sleep EU King Mattress
The Silentnight Memory 3 Sleep Mattress is a memory foam mattress from one of Britain's best-known bed brands.
- Medium feel for most sleepers
- Memory foam softens pressure points
- Fits UK & EU bed frames
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 £395 at Mattress Man on 10th November 2026
Last seen for £449 at Mattress Man on 10th November 2026
Last seen for £395 at Mattress Man on 10th November 2026
Last seen for £335 at Mattress Man on 10th November 2026
Last seen for £345 at Mattress Man on 10th November 2026
Last seen for £255 at Mattress Man on 10th November 2026
Last seen for £249 at Mattress Man on 10th November 2026
Mattress details
Mattress
Silentnight Memory 3 Sleep Mattress
Size
Firmness
Medium
Construction
Foam
Memory Foam
Depth (cm)
Layers
2
Layer Details
Foam layer (top)
The first of two foam layers in an 18 cm mattress. Together they give the medium feel, with memory foam that softens as it warms and gives your hips and shoulders a gentler landing.
Foam layer (base)
The second foam layer sits beneath the first. It is part of an all-foam build, so you get a steady, sprung-free feel rather than the bounce of a pocket spring mattress.
Layer details from mattressman.co.uk and robertdyas.co.uk product pages, October 2026.
Key benefits
This size suits you if...
Consider another size if...
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FAQ's