Silentnight Healthy Growth Snooze Eco Comfort Kids Mattress
Mattress
Silentnight Healthy Growth Snooze Eco Comfort Kids Mattress
Size
Firmness
Construction
Depth (cm)
18
Layers
3
Layer Details
- Sleep surface. A quilted sleep surface fabric sits on top. The quilting gives a soft, cushioned first touch before the firmer support below.
- Fibres. Breathable EcoComfort Fibres™ make up the comfort layer, which means air moves through rather than getting trapped. That helps a warm sleeper stay cooler through the night.
- Support system. An open coil traditional spring system with interconnected springs provides the support. Because the springs work together, the feel is even and slightly springy across the mattress.
Layer details from silentnight.co.uk product page, September 2026.
- Fits raised frames: At 17.5cm deep, it's slim enough for most bunk beds, cabin beds and mid sleepers, where a full-depth adult mattress would sit dangerously above the guard rail.
- Leaves room to play: A 90cm-wide footprint keeps floor space free in a child's bedroom that also has to hold a wardrobe, a desk and toy storage.
- Works in shared rooms: Two UK singles plus a walkway fit where larger beds simply won't, which makes this size practical for siblings sharing one room.
- Cool for warm sleepers: The breathable EcoComfort Fibres let air move through the comfort layer, which means a child who runs hot at night is less likely to wake sweaty.
- Support suited to lighter bodies: The Medium/Firm open coil core gives even, slightly bouncy support, which suits a growing child better than a deep sink-in feel.
This size suits you if...
You're buying for a child's room, a bunk or mid sleeper where mattress depth is limited, or a compact space such as a loft conversion where only a narrow footprint fits under the slope. It also suits a spare room that doubles as an office, provided the person sleeping on it is a child or lighter teen rather than a full-grown adult.
Consider another size if...
The person sleeping on it is an adult, a heavier teen, or anyone who wants a soft, sink-in feel. This mattress comes in a UK single only, so there's no size to move up to; you'd need a different mattress altogether.
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Will the Silentnight Healthy Growth UK single fit a bunk bed?
In most cases, yes. The UK single measures 90 x 190cm, the standard footprint for UK bunk beds, cabin beds and mid sleepers, and at 17.5cm deep it should sit below the guard rail on most raised frames. Check your frame's maximum mattress depth before buying, as a few models specify slimmer limits.
How much room space does a UK single need?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. In practice a child's room usually needs more than the minimum once you add a wardrobe, a desk and toy storage, but at 90cm wide this size leaves more free floor than any other standard bed.
Is the UK single long enough for a teenager?
Usually, yes. At 190cm (6ft 3in) long, the UK single accommodates most teens through their full growth. Length only becomes a squeeze for particularly tall sleepers, and this is a kids' mattress in any case, so a heavier older teen may be better served by an adult mattress rather than a longer size.
Can two UK singles fit in one shared bedroom?
Often, yes. Each UK single is 90cm wide, the narrowest standard adult-length bed, so two beds plus a walkway between them fit in rooms where a larger bed would dominate. Measure your room against two 90 x 190cm footprints with at least enough gap to walk and change bedding comfortably.
Does the Silentnight Healthy Growth come in anything bigger than a single?
No. This mattress is made in the UK single only, which reflects its purpose as a children's mattress. If you need a wider bed, a UK small double is 30cm wider at the same length, but you'd be choosing a different mattress, since Silentnight doesn't make this one in that size.