Silentnight Healthy Growth Cosy Toddler Mattress
The Silentnight Healthy Growth Cosy Toddler Mattress is a firm cot bed mattress built around a washable polyester core.
- Washable, odour-resistant core
- Firm, flat support for toddlers
- 60-night trial & 5-year guarantee
£109
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The Silentnight Healthy Growth Cosy Toddler's firm feel is exactly what you want for little ones, as it gives growing bodies steady, even support. The breathable outer fabric uses cooling EcoComfort Fibres™, which means less heat building up under a sleeping toddler. It's hypoallergenic, naturally resistant to allergens, and free from foam and FR chemical treatments, a reassuring detail for anxious parents. Silentnight backs it with a 60-night trial and a 5-year guarantee, and delivery is quoted at 14 days. At 10cm deep it's slim by adult standards, but that's typical and appropriate for a cot bed mattress.
Mattress specifications
Firmness
Firm
Type
Foam
Depth (cm)
10
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
5
Price Range
£109
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 allergies or chemical treatments are on your mind, this mattress makes a strong case. It's hypoallergenic and free from foam and FR chemical treatments, and the odour-resistant core is washable, which matters a great deal at the leaky-nappy stage. The firm feel gives the flat, supportive surface recommended for young children, and the EcoComfort Fibres™ in the cover help with airflow, so warm sleepers should stay a little more comfortable. It sits at an accessible price point without skimping on the reassurances that count: a 60-night trial to change your mind and a 5-year guarantee behind it.
Key features & layer details
Outer fabric
A breathable, lightweight outer fabric with cooling EcoComfort Fibres™. In practice, that means better airflow around your toddler and less overheating through the night.
Core
A firm polyester core that is breathable, odour resistant and washable. The firmness gives the even support growing children need, and being able to wash it is a genuine help after accidents.
Layer details from silentnight.co.uk product page, September 2026.
Best suited for?
Cot beds
Made as a cot bed mattress, its slim 10cm depth and firm core give a toddler the flat, steady surface a cot bed needs.
Children
The firm polyester core gives growing bodies even support, and it is washable, which helps a great deal after leaky-nappy accidents.
Allergy sufferers
Being hypoallergenic and naturally resistant to allergens, it suits households wanting fewer irritants around a sleeping little one, with no foam or FR chemical treatments used.
Warm sleepers
Cooling EcoComfort Fibres™ in the breathable outer fabric improve airflow, so less heat builds up under a toddler through the night.
This is a cot bed mattress only, so it won't suit older children moving to a single bed. It contains no springs or foam comfort layers, and at 10cm deep it's a simple, firm design: fine for toddlers, but not a long-term option once your child outgrows the cot bed.
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 Cosy Toddler Mattress
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FAQ's
Is the Silentnight Healthy Growth toddler mattress washable?
The polyester core is washable and odour resistant, according to Silentnight's own product page. That makes it practical for the inevitable accidents of the toddler years, as you can clean the mattress itself rather than relying on a protector alone.
How firm is the Silentnight Healthy Growth Cosy Toddler Mattress?
Silentnight describes it as firm. That's the right feel for this age group, as a firm, flat surface supports growing bodies evenly. It may feel harder than an adult mattress, but that's by design rather than a drawback.
Does the Silentnight toddler mattress come with a trial or guarantee?
Yes. Silentnight offers a 60-night trial and a 5-year guarantee on this mattress, so you have time to see how your child settles on it and cover if anything goes wrong.
Is the Healthy Growth toddler mattress suitable for children with allergies?
It's hypoallergenic and naturally resistant to allergens, and it's free from foam and FR chemical treatments. Across the mattresses we cover, that combination is a sensible choice for allergy-prone children, though always speak to your GP about specific allergies.
What sizes does the Silentnight Healthy Growth toddler mattress come in?
It's available in Cot Bed size only, at a depth of 10cm. If your child has already moved to a single bed, you'll need to look at a different model.
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