Silentnight Healthy Growth Starry Natural Single 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
Get the lowest price we've found
Save with the previous model
Some retailers still sell the earlier version of this mattress for less than the current model's best price.
Silentnight Healthy Growth Starry Natural Mattress
More available sizes
Mattress details
Mattress
Silentnight Healthy Growth Starry Natural Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Depth (cm)
27
Layers
3
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.
Key benefits
- Fits a busy child's room: At 90cm wide, a UK single leaves room for a wardrobe, a desk and toy storage even in a smaller bedroom.
- Full-length growing room: The 190cm length carries a child from primary school well into their teens, so you shouldn't need to size up as they grow taller.
- Support in a child's size: The 600 Mirapocket springs adapt to your child's posture, which means they get the tailored support of an adult mattress in a single footprint.
- Two singles for sharing siblings: The narrow footprint means two beds plus a walkway can fit in one shared room, something wider sizes rarely allow.
- Cheap, easy bedding: Single sheets and duvets are the most widely stocked and lowest-priced of any UK size, which matters when children's bedding needs frequent washing.
This size suits you if...
You're buying for a child or teenager moving up from a cot bed or a smaller frame, you want a natural, foam-free build in the standard children's size, or you're kitting out a shared siblings' room where two 90cm-wide beds need to fit with space to walk between them. It also suits a compact bedroom where the bed shares space with a desk and wardrobe.
Consider another size if...
You need any size other than a UK single, since this mattress isn't made in one. An older teen wanting more width, or a guest room for couples, will need a different mattress in a UK double.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Will the Silentnight Healthy Growth single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. The one thing to check is depth: at 27cm this is a full-height mattress, and raised frames often specify a maximum so the guard rail still sits above the sleep surface. Measure from the base to the rail top before ordering.
What room size do you need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space for a UK single. That leaves enough clearance to walk around the bed and open drawers or wardrobe doors, though in a child's room you'll likely want more than the minimum once a desk and toy storage go in too.
Does the Silentnight Healthy Growth Starry Natural come in a double?
No, it's made in a UK single only, which reflects its design as a children's mattress. If your teenager has outgrown a single or you want it for a shared adult bed, you'll need a different mattress in a wider size such as a UK double at 135 x 190cm.
What bedding fits the Silentnight Healthy Growth in a UK single?
Standard UK single fitted sheets, sized for a 90 x 190cm mattress, and a single duvet at 135 x 200cm. Given the mattress is 27cm deep, look for fitted sheets with a deeper box so the corners stay put overnight, particularly with a wriggly sleeper.
Is a UK single long enough for a teenager?
Usually, yes. At 190cm, a UK single is the same length as a UK double, so most teens have length to spare well into their late teens. It's width that tends to prompt an upgrade, and since this mattress only comes in a single, a very tall or broad teen may eventually need a different model.