MattressNextDay Ortho Memory Foam Single Mattress
The MattressNextDay Ortho Memory Foam Mattress is an all-foam design, 19cm deep, available in Single, Double and King.
- Firm feel for back & front sleepers
- Memory foam top adds cushioning
- 5-year guarantee
£229
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MattressNextDay Ortho Memory Foam Mattress
More available sizes
Mattress details
Mattress
MattressNextDay Ortho Memory Foam Mattress
Size
Firmness
Firm
Construction
Foam
Memory Foam
Depth (cm)
19
Layers
3
Layer Details
EcoFoam®
A deep base layer of sustainable EcoFoam®, made from 100% recycled and re-engineered foam, which means a sturdy foundation that encourages spinal alignment and posture control. It's the layer doing most of the supportive work.
Reflex Foam
A firm Reflex Foam layer that moulds to your body shape, which means pressure relief targeted where you actually need it. It bridges the gap between the solid base and the softer surface.
Memory Foam
A final cushioning layer of memory foam that adds a sumptuous softness at the surface. It takes the edge off the firm feel without undermining the support beneath.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Fits where bigger beds can't: At 90cm wide it leaves room for a desk, wardrobe and toy storage in a child's bedroom, or a walkway between two beds where siblings share.
- A depth that suits raised frames: The 19cm profile sits comfortably within the guard rails of most bunk beds, cabin beds and mid sleepers, where a deeper mattress can be unsafe.
- Firm support for growing sleepers: The firm feel and supportive EcoFoam® base encourage good spinal alignment, which matters through the years a child or teenager spends on the same mattress.
- Hypoallergenic for kids' rooms: The all-foam build is hypoallergenic, a reassuring point for parents buying for a child prone to sniffles.
- Practical for spare rooms: A single takes up little space in a study that doubles as guest accommodation, and occasional guests are unlikely to mind the firmer surface.
This size suits you if...
You're buying for a child or teenager, especially for a bunk, cabin or mid-sleeper frame where the slimmer 19cm depth is an advantage, you need a guest bed in a spare room that also has to hold a desk or storage, or you're a single adult in a compact room, a loft conversion or a first flat where 90cm of width is all the floor plan allows.
Consider another size if...
You're an adult who wants space to spread out, or two of you will share the bed. We'd recommend the UK double instead: it's 45cm wider, the same length, gives 67.5cm each for two sharing, and we suggest a room of at least 2.6m x 2.8m for it.
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FAQ's
Is the UK single MattressNextDay Ortho mattress suitable for a bunk bed?
Yes, this is one of its strengths. At 19cm deep, it sits lower than many mattresses, which keeps the top surface safely below the guard rail on most bunk, cabin and mid-sleeper frames. Check your frame's stated maximum mattress depth before buying, but 19cm falls within most of them.
Is a firm mattress in a UK single a good choice for a child?
Generally yes. The firm feel and supportive base encourage healthy spinal alignment while a child is growing, and the memory foam surface layer adds a little cushioning so it shouldn't feel harsh. Very lightweight side sleepers may find it slightly firm at first, but children tend to adapt quickly.
What room size do I need for the UK single version?
We suggest allowing at least 2.1m x 2.8m of floor space. The mattress itself is 90 x 190cm, so that guidance leaves enough clearance to open drawers, make the bed and walk alongside it. In a child's room, the narrow footprint keeps space free for a desk and toy storage.
Should I buy the UK single or the UK double of this mattress?
It comes down to who's sleeping on it. The UK single is 45cm narrower than the UK double and the same length, so a solo child, teen or occasional guest will be fine on the single. For an adult sleeping on it every night, or two people sharing, go for the UK double, which gives 67.5cm each and needs a room of at least 2.6m x 2.8m.
Can an adult sleep comfortably on this mattress in a UK single?
A single adult can, particularly in a compact room, student let or loft conversion where the 90cm width is the practical limit. At 190cm long it suits most adults' height. If you tend to sprawl or change position a lot in the night, the UK double would give you noticeably more room.