Last seen for £735 at Silentnight on 24th June 2026
Silentnight Just Sleep Calm King Size Mattress
The Silentnight Just Sleep Calm sits within Silentnight's Just Sleep range, available in UK Single, UK Double and UK Super King.
- Medium-firm feel for most sleepers
- Fabric surface absorbs body heat
- Support right up to the edges
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 £829 at Silentnight on 2nd September 2026
Last seen for £619 at Silentnight on 2nd September 2026
Last seen for £735 at Silentnight on 24th June 2026
Last seen for £669 at Silentnight on 2nd September 2026
Mattress details
Mattress
Silentnight Just Sleep Calm Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
Layers
Layer Details
Key benefits
This size suits you if...
Consider another size if...
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