Firmness
Firm
Type
Eco-Friendly Mattress
Depth (cm)
15
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£179
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.
If you're buying for a bunk bed or cabin bed, the 15cm depth is the headline feature: a standard-depth mattress can raise a child above the guard rail, and this one won't. The firm feel gives growing bodies consistent support rather than letting them sink in. The EcoComfort Fibre layer is breathable and the whole mattress is free from foam and FR chemical treatments, which some parents specifically look for. Yes, an open coil system is a traditional, simpler construction than pocket springs, but for a lightweight child that trade-off matters far less than it would for an adult. At £179 with a 60-night trial, the risk is low.
Key Features & what's inside
- Sleep surface. A smooth sleep surface with a soft knitted cloud pattern and a lush green border. It's a child-friendly finish rather than a functional layer, but the knit keeps the top gentle against skin.
- Comfort layer. Breathable EcoComfort Fibres sit beneath the surface, which means air can move through the comfort layer rather than trapping warmth. That's helpful for children, who often run hot at night.
- Support system. An open coil traditional spring support system with interconnected springs. The springs move together as one unit, giving an even, firm base across the whole mattress.
Layer details from silentnight.co.uk product page, September 2026.
Who's it NOT for?
This isn't a mattress for adults or heavier teenagers, who may find the slim 15cm profile and firm open coil support too unforgiving over time. It only comes in UK Single, so it won't suit other bed sizes. And if your child strongly prefers a softer, sink-in feel, the firm rating may take some adjusting to.
Silentnight Healthy Growth Eco Bunk Mattress
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Is the Silentnight Healthy Growth Eco Bunk Mattress suitable for bunk beds?
Yes, that's its purpose. At 15cm deep it sits low in the frame, so the safety rail on a top bunk stays at a useful height. It comes in UK Single, the standard bunk size.
How firm is the Silentnight Healthy Growth Eco Bunk Mattress?
Silentnight rates it as firm. That suits growing children, who benefit from consistent support, although a child used to a softer bed may need a little time to adjust.
Does the Silentnight Healthy Growth Eco Bunk Mattress come with a trial or guarantee?
Silentnight offers a 60-night trial and a 5-year guarantee, so you have two months to see how your child settles on it before committing.
Does the Silentnight Healthy Growth Eco Bunk Mattress contain foam?
No. Silentnight states it's free from foam and FR chemical treatments, and it's hypoallergenic. Comfort comes from breathable EcoComfort Fibres over an open coil spring system.
How long does delivery take for the Silentnight Healthy Growth Eco Bunk Mattress?
Silentnight lists delivery within 14 days. Delivery terms can differ if you buy through a retailer, so check at checkout.
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