Silentnight Ortho Dream Star Miracoil Mattress
Mattress
Silentnight Ortho Dream Star Miracoil Mattress
Size
Firmness
Extra Firm
Construction
Depth (cm)
22
Layers
3
Layer Details
- Damask cover. A finely woven, durable fabric that feels soft against the skin, which means a pleasant surface without the heat retention some covers suffer from. It's built for long-lasting performance too.
- Eco Comfort Fibre. Fibres made from recycled materials and 100% sustainable sources, offering breathable, fresh comfort. This is the layer that softens the very top of an otherwise rigid mattress, though only slightly.
- Miracoil Springs. Silentnight's own open coil spring system, arranged into separate support zones. In practice this means your weight is distributed evenly and your spine gets consistent support across the whole surface.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits almost any bedroom: At 90cm wide it slots into box rooms, loft conversions with narrow usable floor and student rooms where the frame is provided and the mattress is not.
- Extra firm support for one: The zoned Miracoil springs hold your spine in line rather than letting you sink, which back sleepers with aches tend to appreciate.
- Suits raised frames: At 22cm deep it sits comfortably within the safety rail height most bunk, cabin and mid-sleeper frames require, though check your frame's stated maximum.
- No partner, no movement problem: Open coil springs transfer more motion than pocket springs, but on a one-person mattress there is nobody to disturb, so this drawback largely disappears.
- A sensible spare room choice: A firm single in a spare room that doubles as an office keeps the floor clear and gives occasional guests proper support rather than a saggy afterthought.
This size suits you if...
You sleep alone and genuinely want a hard, supportive surface, perhaps on your back or with a history of back trouble. It also fits if you're furnishing a spare room or study that doubles as guest space, or a first flat where the room simply won't take anything wider than 90cm. Teens who prefer a firm feel are covered too, provided they're not light side sleepers.
Consider another size if...
You share the bed, or you're a broad-shouldered adult who feels hemmed in at 90cm wide. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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What size is the Silentnight Ortho Dream Star UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in, the standard UK one-person size. Standard single sheets and a single duvet fit it. We suggest a room of at least 2.1m x 2.8m so you can walk around the bed and open drawers without squeezing past.
Will the UK single Ortho Dream Star fit a bunk or mid-sleeper frame?
The UK single is the standard footprint for bunk, cabin and mid-sleeper frames, and at 22cm deep this mattress sits within the maximum depth most raised frames allow for safety rails. Check your frame's stated limit before buying, as some bunks specify a shallower maximum.
Is the Silentnight Ortho Dream Star UK single a good choice for a child?
It depends on the child. The extra firm surface suits older children and teens who sleep on their backs, but lighter kids who sleep on their side may find it too hard on shoulders and hips. For a young child's first big bed, a softer mattress would likely be more comfortable.
Does an extra firm mattress make sense in a spare room?
For occasional guests, yes. A firm single holds its shape between visits and gives visitors proper support, and in a spare room that doubles as an office the 90cm width leaves space for a desk. Guests who prefer a plush feel will find it hard, so mention that before they arrive.
Is the UK single wide enough for an adult?
For most solo adults, yes, though at 90cm it leaves little room to sprawl. If you're broad-shouldered or move around a lot in the night, the UK small double is 30cm wider and the same length; we suggest at least 2.4m x 2.8m of floor space for that size.