Silentnight Healthy Growth Snooze Eco Mattress
Mattress
Silentnight Healthy Growth Snooze Eco Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
18
Layers
3
Layer Details
- Sleep surface. A quilted sleep surface fabric encases the mattress. Quilting gives a slightly cushioned, even feel where you first make contact.
- Fibres. Breathable EcoComfort Fibres™ sit beneath the surface, which means heat can escape rather than build up. A helpful touch for children who tend to sleep warm.
- Support system. An open coil traditional spring system with interconnected springs provides the support. This gives a uniform, slightly bouncier feel across the whole surface rather than tailored contouring.
Layer details from silentnight.co.uk product page, September 2026.
- Slim enough for raised frames: At 17.5cm deep it sits safely below the guard rail on most bunk, cabin and mid-sleeper frames, where a thicker adult mattress often wouldn't.
- Fits a crowded child's bedroom: The 90cm width leaves room for a wardrobe, a desk and the toy storage that always seems to multiply, even in a small room.
- Cooler sleep for warm children: EcoComfort Fibres let heat escape through the mattress, which matters because children often run hot at night in smaller rooms.
- Works for siblings sharing: Two UK singles plus a walkway fit in most shared children's rooms, and the medium firm feel suits a range of ages.
- 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.
- A sensible spare room option: Its light, foam-free build makes moving it up to a loft conversion or into a study that doubles as guest space less of a struggle.
This size suits you if...
You're buying for a child or teenager moving up from a cot bed or into a bunk, cabin or mid-sleeper, where the 17.5cm depth keeps the guard rail doing its job. It also suits a compact spare room, a student room where the frame is provided but the mattress isn't, or a loft bedroom where only a narrow footprint fits under the slope.
Consider another size if...
You're an adult wanting this as your everyday mattress, or you need space for two. It only comes in a UK single, so for a couple or a heavier adult sleeper you'd need a different mattress in a UK double or larger.
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Will the Silentnight Healthy Growth Snooze Eco single fit a bunk bed?
Yes, and it's one of the better matches for one. At 90 x 190cm it fits standard UK bunk, cabin and mid-sleeper frames, and its 17.5cm depth is slim enough to keep the guard rail effective. Many adult mattresses are too deep for raised frames, so this is a genuine advantage rather than a compromise.
What room size do I need for this mattress in a UK single?
We suggest at least 2.1m x 2.8m of floor space. That's our own guidance, not Silentnight's, and it leaves enough room to walk round the bed and open drawers. In practice a UK single fits almost any UK bedroom, including box rooms and loft conversions where the bed has to sit under the slope.
Is a UK single big enough for a teenager?
For most teenagers, yes. At 90cm wide and 190cm long, the UK single is the standard UK one-person size and suits children through to adults of average height. Very tall teens may eventually want the extra 10cm of length a UK king offers, but this mattress is only made in a UK single.
Can two of these singles work in a shared children's room?
Often, yes. Each UK single is 90cm wide, so two beds plus a walkway between them fit in most shared rooms, and matching mattresses keep things fair between siblings. The breathable, foam-free build also helps in a room where two children's body heat adds up overnight.
Does this single suit a spare room that doubles as an office?
It's a reasonable fit. The 90cm width leaves floor space free for a desk, and the medium firm, foam-free feel is fine for occasional adult guests. For a room used mainly for guests rather than children, though, a deeper adult mattress may be more comfortable for regular grown-up use.