Silentnight Healthy Growth Sleepy Eco Comfort Kids Mattress
The Silentnight Healthy Growth Sleepy Eco Comfort is a kids mattress built around a traditional open coil spring system with a breathable EcoComfort Fibres™ comfort layer, which means your child gets steady, firm support with a surface designed to sleep a little cooler.
- Stable, evenly firm surface
- Foam-free & resists allergens
- 60-night trial & 5-year guarantee
£189
Get the lowest price we've found
The Silentnight Healthy Growth Sleepy Eco Comfort comes in UK Single only, at 19cm deep, and it's hypoallergenic and free from foam and FR chemical treatments. It sits at an accessible price for a branded children's mattress, and Silentnight backs it with a 60-night trial and a 5-year guarantee. It's firm, so it suits growing children who need consistent support rather than a plush, sink-in feel.
Mattress specifications
Firmness
Firm
Type
Eco-Friendly Mattress
Depth (cm)
19
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£189
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 choosing a first proper mattress for a growing child, this one keeps things simple. The open coil support system uses interconnected springs, which means a stable, evenly firm surface across the whole bed, helpful for children who move around at night. The EcoComfort Fibres™ layer is breathable, so warm sleepers should stay a little more comfortable. Parents worried about materials will like that it's foam free, FR chemical treatment free, and hypoallergenic with natural resistance to allergens. The 60-night trial gives you time to see how your child settles on it, and the 5-year guarantee covers a good stretch of childhood. Delivery is listed at 14 days.
Key features & layer details
Sleep surface
The mattress is encased in a lightweight fabric surface. It keeps the top of the bed simple and easy-going against skin.
Comfort layer
Breathable EcoComfort Fibres™ sit beneath the surface, which means better airflow and a cooler feel through the night. That matters for children, who often run warm while they sleep.
Support system
An open coil traditional spring system with interconnected springs provides the support. The linked springs move together, giving a consistently firm, stable feel across the whole mattress.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Children
Made as a kids mattress in UK Single, it gives a consistently firm, even surface from its interconnected open coil springs, which suits a growing child.
Allergy sufferers
The hypoallergenic build has natural resistance to allergens, which means a more settled sleep space for children who are sensitive to dust and similar irritants.
Warm sleepers
Breathable EcoComfort Fibres™ sit beneath the cover, which means better airflow and a cooler feel for children who tend to run warm overnight.
Eco-conscious buyers
Being free from foam and FR chemical treatments, it suits parents who want to keep materials simple in a child's bed.
Budget buyers
Priced accessibly for a branded children's mattress, it also comes with a 60-night trial and a 5-year guarantee, so the purchase feels well covered.
This is a kids mattress in UK Single only, so it isn't suitable for adults or larger bed frames. The firm feel may not suit a child who prefers a softer, more cushioned surface, and at 19cm deep it's slimmer than many adult mattresses, so check your fitted sheets will sit neatly.
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 Sleepy Eco Comfort Kids Mattress
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FAQ's
Is the Silentnight Healthy Growth Sleepy Eco Comfort mattress firm or soft?
Silentnight describes it as firm. That suits growing children who need consistent support, although a child who likes a softer, sink-in feel may find it a little unyielding at first.
Does the Silentnight Sleepy Eco Comfort kids mattress have a trial and guarantee?
Yes. Silentnight offers a 60-night trial, so your child has time to adjust before you commit, plus a 5-year guarantee. Delivery is listed at 14 days.
Is the Silentnight Sleepy Eco Comfort mattress hypoallergenic?
Yes. Silentnight lists it as hypoallergenic and naturally resistant to allergens, and it's also free from foam and FR chemical treatments, which many parents will find reassuring.
What sizes does the Silentnight Healthy Growth Sleepy Eco Comfort come in?
It's available in UK Single only, listed at 90cm x 190cm with a depth of 19cm. There are no double or small double options, so it's designed purely as a child's bed.
How much does the Silentnight Sleepy Eco Comfort kids mattress cost?
It comes in UK Single only, and the price table on this page shows the current price. The price is fair given the branded spring support, breathable EcoComfort Fibres™ and the 5-year guarantee included.
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