Firmness
Medium Firm
Type
Hybrid
Depth (cm)
15
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£189
Best Sleeping Position(s)
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw here is fit for purpose. At 15cm deep, it works with bunk beds, cabin beds and trundles where a standard-depth mattress can compromise safety rails. The medium/firm Bonnell springs suit children, who generally benefit from a supportive, slightly firmer surface, and the EcoMemory Fibres™ layer keeps things comfortable and cool rather than sweaty. It's also hypoallergenic and made without foam or FR chemical treatments, which is uncommon at this price. Silentnight backs it with a 60-night trial and a 5-year guarantee, and at £189 it holds a 4.6 rating in Mattress Online's feed. Yes, it's a simple build, but for a child's bed simple is often exactly right.
Key Features & what's inside
- Sleep surface. A smooth surface with a soft knitted cloud pattern. It gives a gentle, cosy feel against sheets.
- EcoMemory Fibres™. A layer of EcoMemory Fibres™ for cooling, cocooning comfort. This means a comfortable surface without the heat retention some children find with traditional memory foam.
- Support system. Medium-firm Bonnell open-coil springs providing balanced full body support. The whole body is held evenly, which suits growing sleepers.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
This isn't a mattress for adults or for a main bed. The 15cm depth and firmer coil support are designed around children and bunk safety, so a heavier sleeper would likely feel the springs and find it a little shallow. It's also only available in a UK Single, so no options for larger frames.
Silentnight Healthy Growth Eco Memory Bunk Mattress
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Is the Silentnight Healthy Growth bunk mattress suitable for bunk beds?
Yes, that's the point of it. At 15cm deep it sits low enough to keep bunk bed guard rails effective, and the medium/firm Bonnell open-coil springs give balanced full body support for children.
How firm is the Silentnight Healthy Growth Eco Memory bunk mattress?
Silentnight describes it as medium/firm. In practice that means a supportive, fairly steady surface, which tends to suit growing children better than a soft, sinking feel.
Does the Silentnight Healthy Growth bunk mattress come with a trial and guarantee?
Yes. Silentnight offers a 60-night trial and a 5-year guarantee, with delivery listed at 14 days on its own site.
Is the Silentnight Healthy Growth bunk mattress hypoallergenic?
Yes, it's certified hypoallergenic, and it's made without foam or FR chemical treatments, which many parents specifically look for in a child's mattress.
What sizes does the Silentnight Healthy Growth bunk mattress come in?
It's available in UK Single only, priced at £189. That fits its purpose as a bunk, cabin or trundle bed mattress rather than a mattress for larger frames.
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