Silentnight Healthy Growth Eco Bunk Mattress
The Silentnight Healthy Growth Eco Bunk Mattress is a firm single mattress designed with bunk beds in mind.
- 15cm depth suits bunk & cabin beds
- Firm, consistent support for kids
- 60-night trial & 5-year guarantee
£169
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At 15cm deep, the Silentnight Healthy Growth Eco Bunk Mattress sits low enough to keep safety rails doing their job, which is the main reason bunk-specific mattresses exist. The comfort layer uses breathable EcoComfort Fibres, which means less heat building up under a sleeping child, and support comes from an open coil spring system. It's hypoallergenic and free from foam and FR chemical treatments, a reassuring point if you're cautious about what your child sleeps on. Silentnight backs it with a 60-night trial and a 5-year guarantee.
Mattress specifications
Firmness
Firm
Type
Eco-Friendly Mattress
Depth (cm)
15
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£169
Best Sleeping Position(s)
Back Sleeping
Stomach 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?
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. With an affordable starting price and a 60-night trial, the risk is low.
Key features & layer details
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.
Best suited for?
Bunk beds
The slim 15cm depth keeps the mattress below the guard rail, so the safety rails on a bunk or cabin bed can do their job.
Children
A firm feel gives growing bodies consistent support rather than letting them sink in, and the smooth knitted cover has a child-friendly finish.
Warm sleepers
Breathable EcoComfort Fibres in the comfort layer let air move through rather than trapping warmth, which suits children who often run hot at night.
Allergy sufferers
Being hypoallergenic and free from foam and FR chemical treatments makes it a reassuring pick if you are cautious about what your child sleeps on.
Budget buyers
With an affordable starting point, a 60-night trial and a 5-year guarantee, there is little risk if you are buying for a bunk bed.
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.
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 Bunk Mattress
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FAQ's
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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