Silentnight Courage Waterproof Kids' Single Mattress
The Silentnight Courage Waterproof Kids' Mattress has a waterproof easy-wipe side and a quilted side, which means spills wipe clean quickly and you can flip it over to the quilted surface when you like.
- Wipe-clean waterproof side
- Breathable fibres keep kids cooler
- Foam-free & chemical-free build
£329
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Silentnight Courage Waterproof Kids' Mattress
More available sizes
Mattress details
Mattress
Silentnight Courage Waterproof Kids' Mattress
Size
Firmness
Firm
Construction
Eco-Friendly
Open Coil Spring
Depth (cm)
21
Layers
2
Layer Details
EcoComfort Fibres layer
A breathable layer of EcoComfort Fibres, made from recycled plastic, that helps regulate temperature. That means a cooler, fresher night's sleep for your child.
Open coil springs
A layer of open coil springs that supports your child from head to toe. It gives the mattress its firm, supportive feel.
Layer details from bedboy.co.uk product page, November 2026.
Key benefits
- Leaves floor space for everything else: At 90cm wide, the UK single leaves room beside the bed for a desk or toy storage, and we suggest allowing at least 2.1m x 2.8m of floor space.
- Suits raised frames: Bunk, cabin and mid sleeper frames are usually built for a UK single, so compare your frame's maximum mattress depth with this mattress's 21cm before buying.
- Practical in a spare room: In a spare room that also serves as a study, a UK single keeps the footprint small, and the wipe-clean side helps when younger visitors stay over.
- Easy bedding for wet nights: Standard single sheets fit and a single duvet measures 135 x 200cm, so spare sets for changing in the night are simple to find.
- Length that lasts: At 190cm long, or 6ft 3in, the UK single gives a growing child plenty of length well into their teens.
This size suits you if...
Your child is three or older and sleeps alone, their bedroom has to fit storage and a desk around the bed, or you need a wipe-clean mattress for a bunk, cabin or mid sleeper frame.
Consider another size if...
Your child is under three, prefers a soft mattress they sink into, or you need a bed for two people. Silentnight makes this mattress in a UK single only.
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FAQ's
Will the Silentnight Courage UK single fit a bunk bed or mid sleeper?
It measures 90 x 190cm, the standard size most bunk, cabin and mid sleeper frames are designed around. The mattress is 21cm deep, so check the frame maker's maximum mattress depth first. That limit keeps the guard rail high enough above the sleeping surface, and it varies from one frame to the next.
How much room do you need for a UK single kids' mattress?
We suggest at least 2.1m x 2.8m of floor space for a UK single. That leaves enough room to make the bed and open a wardrobe door. In a shared bedroom with two beds, plan a clear walkway between them as well, so neither child has to climb over furniture to get out.
Is a UK single long enough for a teenager?
A UK single is 190cm long, or 6ft 3in, which suits most teenagers. A very tall teen who sleeps stretched out may eventually want more length, but this mattress comes in a UK single only. If that's likely, you'd need to look at a different mattress later on.
What bedding fits the Silentnight Courage in a UK single?
Standard single fitted sheets fit, and a single duvet measures 135 x 200cm. Because the waterproof side wipes clean, you'll mostly be changing sheets rather than cleaning the mattress, so a second set of single bedding makes night-time changes quicker.
Can a UK single fit under a sloping ceiling in a loft conversion?
Often, yes. At 3ft wide, a UK single can sit lengthways along the low wall, with the child's head towards the higher side. Measure the headroom where they'll sit up, and leave space to change sheets, because a waterproof children's mattress may need stripping in the night.