MattressNextDay Kingfisher Waterproof Contract Double 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
£149
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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
- Room for two visitors: A UK double gives 67.5cm each for two people sharing, which means a visiting couple can sleep comfortably for a weekend without either person hanging off the edge.
- Fits a modest spare room: We suggest at least 2.6m x 2.8m for a UK double, so a second bedroom can usually hold the bed alongside a wardrobe and a chest of drawers.
- Spills stay on the surface: The waterproof cover means a knocked-over drink from a guest or tenant wipes away, which matters more on a double where two people are eating breakfast in bed.
- Easy to dress on a budget: Double bedding is sold almost everywhere, so if you're kitting out a whole flat at once you can pick up a 200 x 200cm double duvet without hunting.
- A step up from a small double: The UK double is 15cm wider than the UK small double at the same length, which gives a sharing couple noticeably more shoulder room in a similar footprint.
This size suits you if...
You're furnishing a guest room or rental where couples will stay now and then, your spare bedroom has around 2.6m x 2.8m to spare and still needs space for storage, or you sleep alone and like room for a cat or dog to take over one corner.
Consider another size if...
Two adults will share it every night and want more elbow room. We'd recommend the UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m for it.
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FAQ's
Is the Kingfisher double good for a guest room for couples?
For occasional stays, yes. The UK double gives 67.5cm each for two sharing, enough for a weekend visit. The mattress is a slim 10cm contract design, though, so it suits guests passing through rather than a couple who will sleep on it every night for years.
Will a Kingfisher UK double fit in a small second bedroom?
We suggest at least 2.6m x 2.8m for a UK double. If your room is tighter than that, the UK small double is 15cm narrower at the same length, and we suggest at least 2.4m x 2.8m for it, which can free up space for a wardrobe or desk.
How much space does each person get on a Kingfisher double?
Two people sharing a UK double get 67.5cm each. That works for a visiting couple, although it can feel a little snug for regular sharing. The UK king gives 75cm each, so the UK double gives 7.5cm less per person.
Is the Kingfisher double long enough for a tall adult?
The UK double is 190cm long, or 4ft 6in x 6ft 3in in imperial. Taller guests may find their feet near the end. The UK king is 10cm longer, which gives more legroom if your room has space for it.
Should I buy a Kingfisher double or single for a rental flat?
If couples are likely to rent, the UK double makes the room more appealing, being 45cm wider than the UK single at the same length. For single occupancy in a boxroom, the UK single needs less floor space; we suggest at least 2.1m x 2.8m.