Silentnight Double Sided Miracoil Mattress
The Silentnight Double Sided Miracoil is a straightforward sprung mattress from one of the UK's best-known bedmakers.
- Zoned support for hips & shoulders
- Breathable fibres keep you cooler
- Double-sided to even out wear
£167
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The Silentnight Double Sided Miracoil uses Silentnight's Miracoil spring system, a zoned open coil design, which means support that adjusts to different parts of your body and less roll-together if you share the bed. The double sided design lets you flip it, and the medium-firm feel suits most back and front sleepers. At 24cm deep it is slimmer than many modern hybrids, but for the money it is a sensible, no-nonsense choice.
Mattress specifications
Firmness
Medium Firm
Type
Open Coil Spring
Depth (cm)
24
Number of Layers
3
Trial Period (nights)
Warranty (years)
5
Price Range
£167 to £311
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Combination Sleeping
Certifications
BS 7177
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
You would choose this mattress for dependable, firmer-leaning support at a genuinely modest price. The Miracoil springs are zoned into individual sleeping areas, which means your hips and shoulders get support where they need it and you are less likely to feel a partner moving. Air Plus fibres in the comfort layer encourage airflow, so it should sleep a little cooler than a foam-heavy alternative. It carries a 5-year manufacturer's guarantee from Silentnight, is hypoallergenic, made in the UK by an NBF-approved manufacturer, and meets the BS7177: 2008 fire safety standard. Yes, it is a simple build, but that simplicity is part of why it costs so little.
Key features & layer details
Cover
A soft knitted cover that is highly breathable, which means less heat trapped at the surface. It feels soft to the touch rather than stiff or papery.
Comfort Fillings
Air Plus fibres, breathable comfort fibres that encourage airflow through the mattress. In practice that helps keep the sleep surface feeling fresher through the night.
Support System
Silentnight's Miracoil spring system, a zoned open coil unit designed to support all parts of the body with individual sleeping zones. The no roll-together design means you are less likely to drift into your partner's side.
Base Note
The mattress is double sided, so you can flip it to even out wear over time. It arrives flat rather than rolled and boxed, which spares the springs any compression.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Back sleepers
The medium-firm feel and zoned Miracoil springs give support under the hips and shoulders, which suits a flat sleeping position well.
Front sleepers
A firmer-leaning medium-firm surface helps stop the hips sinking too far, which keeps you more level when lying on your front.
Couples
The no roll-together Miracoil design with individual sleeping zones means you are less likely to feel a partner moving or drift into their side.
Warm sleepers
A highly breathable knitted cover and Air Plus fibres encourage airflow, so it should sleep a little cooler than a foam-heavy mattress.
Allergy sufferers
The hypoallergenic build gives a sensible option for anyone who wants a simple spring mattress without extra fuss in the materials.
If you sleep on your side and are lightweight, the medium-firm feel may press a little too much at the shoulder and hip. It is also slimmer than many hybrids at 24cm, so anyone wanting a deep, plush, hotel-style surface should look elsewhere. There is no trial period mentioned on the listing, either.
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 Double Sided Miracoil Mattress
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FAQ's
Is the Silentnight Double Sided Miracoil mattress firm or medium-firm?
Silentnight describes it as having a medium-firm feel, although the specifications table on the MattressNextDay listing labels it as firm. In practice, expect it to sit on the firmer side of medium, which suits back and front sleepers well.
Can you flip the Silentnight Double Sided Miracoil mattress?
Yes. It is a double sided mattress, so you can flip it to spread wear across both surfaces, and it arrives flat rather than rolled and boxed.
What sizes does the Silentnight Double Sided Miracoil come in?
It is available in UK Single, Small Double, Double, King and Super King sizes.
Does the Silentnight Double Sided Miracoil have a guarantee?
Yes, it comes with a 5-year manufacturer's guarantee from Silentnight. No trial period is mentioned on the MattressNextDay listing, so check the returns policy of whichever retailer you buy from.
How is the Silentnight Double Sided Miracoil delivered?
MattressNextDay lists free next day delivery to mainland UK, although some addresses may incur a small fee. The mattress is delivered flat, not rolled and boxed. These are the retailer's own services, so terms may differ if you buy elsewhere.
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