Silentnight Healthy Growth Starry Natural Mattress
The Silentnight Healthy Growth Starry Natural is a pocket spring mattress designed for children, available in a UK single.
- Natural British wool, foam-free
- Supported on their back or side
- 60-night trial & 5-year guarantee
£339
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The Silentnight Healthy Growth Starry Natural uses 600 Mirapocket® springs, which means the mattress responds to your child's individual posture and keeps supporting them as they move about in the night. A layer of British Wool sits above the springs to help regulate temperature, and the whole thing is hypoallergenic and free from foam and FR chemical treatments. At 27cm deep it feels like a proper grown-up mattress rather than a thin children's one. Silentnight backs it with a 60-night trial and a 5 year guarantee, which gives you a decent window to be sure it suits your child.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
27
Number of Layers
3
Trial Period (nights)
60
Warranty (years)
5
Price Range
£339
Best Sleeping Position(s)
Side Sleeping
Back 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 strongest reasons to pick this mattress are the natural, chemical-conscious build and the tailored support. It contains no foam and no FR chemical treatment, which will reassure parents who want fewer synthetics near a growing child. The 600 individual pocket springs adapt to posture, so your child is supported whether they sleep on their back or curled on their side, and Silentnight states the zoned Mirapocket® design is scientifically proven to improve spinal alignment. Breathable British Wool and an airflow border help with overheating, useful if your child runs warm at night. The medium firmness suits most growing sleepers. It's a real spend for a single, but the 60-night trial takes some of the risk out.
Key features & layer details
Quilted sleep surface
A soft quilted top with a breathable airflow border, which means air can circulate through the mattress rather than heat building up. It gives the sleep surface a gently cushioned feel.
British Wool
A layer of premium British Wool, a naturally breathable fibre that wicks moisture and helps regulate temperature. Your child should feel fresher through the night, particularly in warmer months.
Pocket springs
600 individual Mirapocket® springs adapt to your child's posture and let them move freely while staying supported. The zoned design is, Silentnight states, scientifically proven to improve spinal alignment and posture.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Children
The 27cm depth and medium firmness make it feel like a proper grown-up mattress, giving a growing child steady support rather than a thin, basic feel.
Warm sleepers
A layer of breathable British Wool wicks moisture and helps regulate temperature, while the airflow border lets air circulate, so it suits children who run hot at night.
Allergy sufferers
The mattress is hypoallergenic and free from foam and FR chemical treatments, which means fewer synthetic materials close to a child with a sensitive nose.
Eco-conscious buyers
Natural British Wool and a build with no foam and no FR chemical treatment suit parents who want fewer synthetics in their child's bed.
Combination sleepers
The 600 individual Mirapocket® springs adapt to posture and let a child move freely, so support carries on whether they turn from back to side overnight.
It only comes in a UK single, so it won't work if you need a small single for a compact bed frame or a double for an older teen. And if your child strongly prefers a very soft or notably firm feel, this medium tension may not be the best match.
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 Starry Natural Mattress
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FAQ's
How firm is the Silentnight Healthy Growth Starry Natural mattress?
Silentnight rates it as medium. That middle-of-the-road tension suits most children, giving enough give for lighter bodies and side sleepers while keeping the spine supported as they grow.
Does the Silentnight Healthy Growth Starry Natural come with a trial?
Yes. Silentnight offers a 60-night trial when you buy from them, so your child can sleep on it at home before you commit. It also carries a 5 year guarantee.
Is the Silentnight Healthy Growth Starry Natural mattress chemical free?
It is free from foam and FR chemical treatments, and it's hypoallergenic. Silentnight uses natural British Wool in the comfort layer, which makes it a reassuring pick if you're cautious about synthetics in a child's bed.
How thick is the Silentnight Healthy Growth Starry Natural mattress?
It measures 27cm deep, a substantial depth for a children's mattress. Standard UK single fitted sheets should still fit, but check deeper-depth options if yours are snug.
How long does delivery take for the Silentnight Healthy Growth Starry Natural?
Silentnight lists delivery within 14 days when ordering from their own site. Delivery times may differ if you buy through a retailer, so check at checkout.
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