Hypnos Orthos Support 7 Firm Mattress
Mattress
Hypnos Orthos Support 7 Firm Mattress
Size
Firmness
Firm
Construction
Depth (cm)
Layers
Layer Details
- Fits where other sizes won't: At 3ft x 6ft 3in, the UK single slots under loft slopes and into box rooms where even a UK small double would crowd the walkway.
- Firm support for a growing back: The stable, low-sink feel suits teenagers moving up from a childhood bed, keeping the spine level as they get heavier through those years.
- Guest rooms that earn compliments: Two UK singles fit where one larger bed struggles, and a firm pocket spring surface gives visiting relatives support they'll actually comment on.
- Springs, sized for one: The ReActive springs flex individually, so a solo sleeper gets even support across shoulders and hips rather than one flat, unyielding board.
- Cheapest bedding of any size: Single sheets and a standard 135 x 200cm single duvet are the most widely stocked and lowest priced bedding you can buy.
This size suits you if...
You're a single adult who sleeps best on a firm surface and wants a long-lasting mattress in the smallest standard footprint, you're upgrading a teenager to something genuinely supportive, or you're furnishing a spare room or study that doubles as guest space and would rather buy quality once than replace a cheap mattress every few years.
Consider another size if...
You share the bed, or you're over 6ft 3in and find your feet at the edge. Couples should look at the UK double, which is 45cm wider, while taller sleepers gain 10cm of length with the UK king.
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.
Is the Hypnos Orthos Support 7 UK single a good choice for a child?
It depends on their weight. A firm mattress supports heavier bodies well, but a young, lightweight child may find it a little unyielding, as they won't sink far enough for the springs to contour. For older, heavier teenagers the firm tension makes more sense. For younger children, a medium-tension single elsewhere may be kinder.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space, which gives you room to walk alongside the bed and open drawers or a wardrobe. That's our own guidance rather than the manufacturer's. In a child's room competing with a desk and toy storage, the 90cm width is what keeps the floor usable.
Will the UK single fit a bunk or mid sleeper frame?
The footprint will: 90 x 190cm is the standard UK bunk and mid sleeper size. The thing to check is depth, since raised frames have a maximum mattress height so the guard rail still does its job. Compare this mattress's depth against your frame's stated limit before ordering.
How much bigger is a UK double than the UK single?
The UK single is 45cm narrower than the UK double, and the two are the same length. If you're weighing them up for a spare room, we suggest at least 2.6m x 2.8m for the UK double, against 2.1m x 2.8m for the UK single. For occasional solo guests, the single usually wins on floor space.
Is a UK single long enough for a tall teenager?
At 190cm, or 6ft 3in, it accommodates most people comfortably. If your teenager is already very tall, or heading that way, it's worth knowing the UK king is 10cm longer than the UK single, though it's also 60cm wider, so it needs a room of at least 2.7m x 2.9m.