Silentnight Miracoil Memory Cushion Top Mattress
Mattress
Silentnight Miracoil Memory Cushion Top Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
24
Layers
3
Layer Details
- Cushion Top. A deep-filled cushion top stuffed with extra soft fillings, which means a gentler first impression when you lie down. It softens the surface without changing the firm support beneath.
- Eco Comfort Layer. Silentnight's Eco Comfort layer uses fibres partially made from recycled plastic, including bottles. It's breathable and helps regulate temperature and reduce moisture build-up, so you should feel a little less clammy on warm nights.
- Miracoil Spring System. Silentnight's exclusive Miracoil spring system provides zoned support, which means firmer reinforcement where your body carries more weight. It also supports you right to the edge of the mattress, so you can use the full sleep surface without feeling you'll fall off.
Layer details from silentnight.co.uk product page, September 2026.
- Fits where other sizes can't: At 90cm wide, this size leaves room for a desk, wardrobe or toy storage in a child's bedroom rather than swallowing the floor.
- Firm support for growing sleepers: The zoned Miracoil springs firm up under heavier areas, which means a teenager gets proper spinal support rather than a saggy hammock feel.
- Works on raised frames: At 24cm deep, it stays sensible for bunk beds, cabin beds and mid sleepers, where a taller mattress can sit above the safety rail.
- Edge support across a narrow surface: The springs support you right to the edge, which matters more on a 90cm width where you're never far from it.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child or teenager who has outgrown a cot or small single, you need a guest bed for a spare room that doubles as an office, or you're a single adult in a compact bedroom, a student room or a first flat where 90cm of width is the practical limit.
Consider another size if...
You're an adult who spreads out in your sleep, or you share the bed even occasionally. The Silentnight Miracoil Memory Cushion Top in a UK small double gives you 30cm more width at the same length, and we suggest allowing at least 2.4m x 2.8m for it.
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Will the Silentnight Miracoil Memory Cushion Top UK single fit a bunk bed?
Usually, yes. At 90 x 190cm it matches the standard UK bunk and mid sleeper footprint, and its 24cm depth is moderate for a hybrid. Do check your frame's maximum mattress depth before buying, though: some bunk beds specify a lower limit so the safety rail still sits high enough above the sleep surface.
Is the Silentnight Miracoil Memory Cushion Top UK single good for a child or teenager?
It's a reasonable fit for older children and teens. Silentnight lists it as extra firm, and firm zoned support suits growing bodies better than a soft, sink-in surface. The cushion top softens that first impression a little. Very light children may find it unyielding, so a softer mattress could suit younger kids better.
Is a UK single big enough for an adult guest room?
For occasional guests, yes. At 90cm wide it comfortably sleeps one adult, and the edge-to-edge spring support means visitors can use the full width without feeling perched. If the spare room also holds a desk, the single's small footprint is the reason it works. Regular adult use might justify sizing up if space allows.
How much floor space does this mattress need in a single size?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single, which gives you room to walk alongside the bed and open drawers or a wardrobe. In a loft conversion or box room, the 90cm width is often the only standard adult size that fits under a sloped ceiling.
Where can I buy the Silentnight Miracoil Memory Cushion Top in a single?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so it's worth checking back before you buy, as the UK single is typically the cheapest size in the range and offers move around often.