MattressNextDay Kingfisher Waterproof Contract Single Mattress
The Kingfisher is a waterproof contract mattress from MattressNextDay, built around a single 10cm layer of EcoFoam®, a recycled foam that offers a medium firm feel.
- Waterproof cover wipes clean
- Made from 100% recycled foam
- 5-year guarantee
£119
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MattressNextDay Kingfisher Waterproof Contract Mattress
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Mattress details
Mattress
MattressNextDay Kingfisher Waterproof Contract Mattress
Size
Firmness
Medium Firm
Construction
Foam
Open Coil Spring
Depth (cm)
10
Layers
Layer Details
EcoFoam®
A core made from 100% recycled and re-engineered foam, which means a greener product with a reduced carbon footprint. It's resilient, durable and naturally dust mite resistant, giving solid body support with a medium firm feel.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Made for raised frames: At 10cm deep, the UK single sits comfortably below the safety rail height on bunks, cabin beds and mid sleepers, where a standard-depth mattress often can't be used.
- Waterproof where it matters most: The single is the size accidents most often happen on, and the wipe-clean cover means a night-time spill is a two-minute job rather than a ruined mattress.
- Fits a crowded child's room: A 90cm width leaves floor space free for a desk, wardrobe and toy storage, and we suggest allowing at least 2.1m x 2.8m of room.
- Sensible for guest rooms and rentals: Slim, hard-wearing and hypoallergenic, it suits a spare room that doubles as an office, or a landlord furnishing between tenants.
- Easy to buy twice: For siblings sharing a room, two UK singles plus a walkway fit where larger sizes won't, and matching bedding is cheap and everywhere.
This size suits you if...
You're buying for a child's bed, bunk or mid sleeper where a slim, waterproof mattress is exactly right, you're furnishing a rental or guest room and want something easy to keep hygienic, or you need a low-cost single for a spare room that spends most of its life as an office.
Consider another size if...
You want a single-size bed for two children's rooms with more grown-up depth, or an adult will use it regularly. For a solo adult wanting more space, we'd recommend the UK small double, which is 30cm wider and needs a room of at least 2.4m x 2.8m.
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FAQ's
Will the Kingfisher UK single fit a bunk bed or mid sleeper?
Yes, and it's arguably the best use for it. Bunks and mid sleepers usually limit mattress depth so the safety rail stays effective, and at 10cm the Kingfisher sits well within that limit. Check your frame takes a standard 90 x 190cm UK single and you're set.
What size room do I need for the Kingfisher UK single?
We suggest allowing at least 2.1m x 2.8m of floor space. That's our own guidance rather than the manufacturer's, and it leaves enough clearance to walk round the bed and open drawers or a wardrobe. In a child's room with a desk and toy storage, a UK single is the size that keeps everything workable.
Is the Kingfisher UK single big enough for an adult?
For occasional use, yes. At 90 x 190cm it's the standard UK one-person size, so a solo adult guest will manage fine for a few nights. As an everyday adult mattress it's less suitable: the 10cm depth is on the slim side, and heavier adults in particular will feel it.
Can I put two Kingfisher UK singles in one room for siblings sharing?
Often, yes. Two 90cm-wide singles plus a walkway between them fit in rooms where a bigger shared bed wouldn't, and each child gets their own waterproof, wipe-clean mattress. Measure your room against two beds side by side and keep clear access to the door and wardrobe.
How much does the Kingfisher UK single cost?
Prices change frequently, so we don't print a figure here. The live table on this page shows current retailer pricing for the UK single specifically, updated as retailers change it, so the number you see is the number you'd pay today.