Hypnos Orthos Support 7 Firm Small Double Mattress
The Hypnos Orthos Support 7 Firm is a pocket spring mattress built around Hypnos's ReActive 7-turn pocket springs, which flex individually so the mattress can follow the shape of your body rather than pushing back as one flat surface.
- Suits back & heavier sleepers
- Helps keep your spine level
- Minimises partner disturbance
£1,155.15
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Hypnos Orthos Support 7 Firm Mattress
More available sizes
Mattress details
Mattress
Hypnos Orthos Support 7 Firm Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
Layers
6
Layer Details
British wool top layer
Two layers of British wool from Red Tractor-assured farms form the breathable top of the mattress. That helps air move through the surface, so it should feel less stuffy as you sleep.
Cotton layer
Two layers of responsibly sourced cotton sit inside the wool layers. They keep you cool and dry, which is helpful if you tend to warm up overnight.
eOlus recycled fibre comfort pad
An adaptive comfort pad made from eOlus recycled fibre sits above the springs. It adds a little cushioning between you and the firm spring core, though the overall feel stays firm.
ReActive 7-turn pocket spring core
The core is Hypnos's ReActive 7-turn pocket spring system, which gives targeted support. The springs work independently, so you get firm, even support and less movement carried across the bed to a partner.
Cotton layer
A second layer of responsibly sourced cotton sits beneath the springs. It mirrors the cotton above, so the mattress stays cool and dry from both sides.
British wool bottom layer
A breathable British wool layer forms the base. Because the mattress is flippable, you can turn it over to spread wear, and the wool underneath keeps the same airy feel.
Layer details from mattressman.co.uk and snug-interiors.com product pages, October 2026.
Key benefits
- Real width for one sleeper: At 120cm across, a solo adult who likes to sprawl gets far more room than a single offers, without stepping up to a full double footprint.
- Fits compact double bedrooms: The UK small double is 15cm narrower than the UK double, which can be the difference between a door that clears and one that doesn't.
- Firm support in a smaller footprint: The ReActive 7-turn pocket springs flex individually, so the firm surface follows your shape rather than pressing back as one flat slab.
- Copes with occasional sharing: Two people can share for a weekend visit, and the independent springs keep one person's movement from travelling across to the other.
- Standard 4ft sizing: Small double frames and fitted sheets are widely stocked in the UK, so kitting out the bed is straightforward.
This size suits you if...
You sleep alone but have outgrown a single and want room to stretch, your bedroom, box room or loft conversion can't take a full double without losing walking space, or you're furnishing a guest room where couples stay occasionally rather than nightly. The firm tension adds a further condition: you should be a back sleeper or heavier sleeper who prefers a stable feel with little sink.
Consider another size if...
You share the bed every night, because 120cm is snug for two adults long term. If your room allows at least 2.6m x 2.8m, we'd recommend the UK double instead, which is 15cm wider and the same length.
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FAQ's
Is a small double big enough for a couple on the Hypnos Orthos Support 7?
For occasional nights, yes. Two adults get 120cm between them, and the ReActive 7-turn pocket springs limit motion transfer, which helps at this width. For every night, it's snug, and we'd point couples towards the UK double, which is 15cm wider, or the UK king, 30cm wider and 10cm longer.
What room size do I need for the Hypnos Orthos Support 7 in a small double?
We suggest allowing at least 2.4m x 2.8m. That leaves walking space around a 120 x 190cm mattress, though a firm bed you can't get to comfortably is no bargain, so measure the room with wardrobes and door swing in mind, particularly in a box room or loft conversion where sloping ceilings eat into usable floor.
How much wider is the small double than a single?
The UK small double is 30cm wider than the UK single, and the two are the same length at 190cm. That extra width is the whole point of this size: a teenager or solo adult who has outgrown a single gains real stretching room while the bed's footprint grows only modestly.
What bedding fits this mattress in a small double?
Small double, or 4ft, fitted sheets are the right match for the 120 x 190cm dimensions, paired with a standard double duvet. It's a standard UK size, so sheets and frames are easy to find on the high street, which isn't always true of less common widths.
Where can I buy the Hypnos Orthos Support 7 in a UK small double?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so checking the live table is more reliable than any figure we could print. Availability in specific sizes shifts too, so if the small double appears in stock, that reflects the current feed rather than a permanent state.