Silentnight Seoul Miracoil Memory Mattress
The Silentnight Seoul Miracoil Memory is a firm hybrid mattress that pairs Silentnight's Miracoil spring system with a memory foam comfort layer, which means you get sturdy, even support with a little pressure-relieving softness on top.
- Firm support for back & front sleepers
- Memory foam cushions the firmness
- Usable right to the edge
£285
Get the lowest price we've found
The Silentnight Seoul Miracoil Memory is good value for a hybrid from a well-known British brand. It suits back and front sleepers who want a supportive, no-nonsense feel, although lightweight side sleepers may find it a little too firm around the shoulders and hips. Mattress Online lists a 5 year guarantee with it.
Mattress specifications
Firmness
Firm
Type
Hybrid
Depth (cm)
Number of Layers
2
Trial Period (nights)
Warranty (years)
Price Range
£285 to £455
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Assessed from the product page published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Choose this mattress if you want firm support without paying a premium for it. The Miracoil spring system spreads support across the width of the mattress rather than relying on individual pockets, which means a stable, consistent feel and decent edge-to-edge usability. The memory foam layer takes the hard edge off that firmness, so you feel cushioned rather than perched on top. Its starting price undercuts a lot of hybrid mattresses, and the retailer-listed 5 year guarantee adds some reassurance. If you sleep on your back or front, or you simply prefer a firmer bed, this is a sensible, affordable option from a familiar name.
Key features & layer details
Memory foam comfort layer
A layer of body-moulding memory foam sits on top of the springs and moulds to your body. It softens the surface of a firm mattress, so you feel cushioned rather than resting on hard springs.
Miracoil spring core
A continuous head-to-toe Miracoil spring system with three support zones forms the base. The zoning gives different parts of your body the support they need, and the continuous coil design carries that support out towards the edges.
Layer details from bedsonlegs.co.uk and linthorpebeds.co.uk product pages, October 2026.
Best suited for?
Back sleepers
The firm feel and Miracoil spring system give steady, even support across the width of the mattress, which keeps you well supported while lying on your back.
Front sleepers
Firm support from the Miracoil springs stops you sinking in too far, while the memory foam layer takes the hard edge off the surface.
Budget buyers
The copy calls it good value for a hybrid and says it undercuts many rivals, so you get firm support from a familiar British brand without paying a premium.
Couples
The Miracoil springs spread support across the whole mattress, which means a stable, consistent feel and decent edge-to-edge usability when two people share the bed.
This is a firm mattress, so lightweight side sleepers will likely find it puts too much pressure on the shoulders and hips. If you prefer a plush, sink-in feel, look elsewhere. It's also currently listed in UK Single, Small Double and Super King only, so anyone needing a standard Double or King may be out of luck.
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 Seoul Miracoil Memory Mattress
Last seen for £468 at Mattress Online on 2nd September 2026
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FAQ's
Is the Silentnight Seoul Miracoil Memory mattress firm or soft?
It's rated firm. The Miracoil springs give a supportive, stable base, while the memory foam layer adds a slightly softer surface feel. It suits back and front sleepers well, but lighter side sleepers may find it firmer than they'd like.
How much does the Silentnight Seoul Miracoil Memory mattress cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. It's affordable for a hybrid mattress combining springs and memory foam from a major British brand.
What sizes does the Silentnight Seoul Miracoil Memory come in?
It's currently listed in UK Single, UK Small Double and UK Super King. That's an unusual line-up, as standard Double and King don't appear in the current listing, so check availability if you need one of those sizes.
Does the Silentnight Seoul Miracoil Memory mattress have a guarantee?
Mattress Online shows a 5 year guarantee. Guarantee terms can differ between sellers, so confirm the details with the retailer before you buy.
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