Silentnight Healthy Growth Eco Memory Bunk Mattress
The Silentnight Healthy Growth Eco Memory Bunk Mattress is a hybrid designed with bunk beds in mind, and its slim 15cm depth is the reason: it sits safely below guard rails where a deeper mattress wouldn't.
- Fits bunk, cabin & trundle beds
- Cocooning fibres that stay cool
- 60-night trial & 5-year guarantee
£189
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Inside the Silentnight Healthy Growth Eco Memory Bunk Mattress, Bonnell open-coil springs give a medium/firm feel, which means growing sleepers get steady, even support rather than a soft sink. A layer of EcoMemory Fibres™ adds cooling, cocooning comfort on top. It's hypoallergenic and free from foam and FR chemical treatments, a reassuring detail for parents. At an affordable starting price, with a 60-night trial and a 5-year guarantee from Silentnight, it's a sensible, low-fuss choice for children's beds.
Mattress specifications
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)
Back Sleeping
Stomach Sleeping
Combination Sleeping
Certifications
Assessed from Silentnight's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
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 an affordable starting price. Silentnight backs it with a 60-night trial and a 5-year guarantee, and 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 & layer details
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.
Best suited for?
Children
Medium-firm Bonnell open-coil springs hold the whole body evenly, which means growing sleepers get steady support rather than a soft sink.
Bunk beds
At 15cm deep, it leaves room below the safety rails on bunk beds, cabin beds and trundles where a standard-depth mattress can compromise them.
Allergy sufferers
It is hypoallergenic and made without foam or FR chemical treatments, which gives parents a reassuring choice for a child's bed.
Budget buyers
Described as having an affordable starting price, it still comes with a 60-night trial and a 5-year guarantee from Silentnight.
Warm sleepers
A layer of EcoMemory Fibres™ gives cooling, cocooning comfort, so children avoid the heat retention some find with traditional memory foam.
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.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Silentnight Healthy Growth Eco Memory Bunk Mattress
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FAQ's
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. That fits its purpose as a bunk, cabin or trundle bed mattress rather than a mattress for larger frames.
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