Last seen for £509 at Mattress Online on 25th June 2026
Silentnight Rio Miracoil Cushion Top Super King Mattress
The Silentnight Rio Miracoil Cushion Top is a soft mattress with a cushioned sleep surface, listed as an eco-friendly design.
- Soft feel suits side sleepers
- Cushion top eases pressure points
- An eco-friendly choice
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Last seen for £509 at Mattress Online on 25th June 2026
Mattress details
Mattress
Silentnight Rio Miracoil Cushion Top Mattress
Size
Firmness
Soft
Construction
Open Coil Spring
Eco-Friendly
Depth (cm)
Layers
3
Layer Details
Cushion top
A layer of soft white fibres sits at the surface to give a cushioned feel. It adds a little give under your shoulders and hips, so the mattress feels gentler than a bare spring top.
Dense polyester fibre layer
Below the cushion top is a dense layer of polyester fibres. It adds to the firm comfort and freshness, which means the surface doesn't feel too sink-in underneath the softer top.
Miracoil spring core
Miracoil continuous coil springs are divided into three separate zones of support. Each zone is there to support a different part of your body, which helps keep your hips and lower body held up while you sleep.
Layer details from mattressonline.co.uk and thesleepshop.co.uk product pages, October 2026.
Key benefits
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