Hypnos Orthos Support 7 Firm 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
- A shared size that fits real rooms: At 135cm wide, a UK double leaves space for bedside tables on both sides in most bedrooms, where a UK king can crowd the walls.
- Firm support for two: The ReActive pocket springs flex individually, which means one of you turning over sends less movement across to the other.
- 67.5cm each when sharing: Two people sharing get 67.5cm each, enough for most couples who sleep fairly still, though restless pairs may want more.
- Sensible for a guest room: A firm UK double suits visiting couples well, giving stable, level support to guests of different weights without dominating a spare room.
- Easier to get upstairs: A pocket spring mattress this size is more manageable on the turning stairs of an older terrace or a tight new build landing than the larger sizes.
This size suits you if...
You share the bed every night and your bedroom sits around the typical UK size, so a UK king would leave the room feeling cramped. It also suits you if you're kitting out a guest room for visiting couples, or you sleep alone on a firm surface and want space to spread out without giving the whole room over to the bed.
Consider another size if...
You and your partner both move around at night, or one of you is broad shouldered, and 67.5cm each feels tight. 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 Hypnos Orthos Support 7 in a UK double big enough for two adults?
For most couples, yes. Two people sharing a UK double get 67.5cm of width each, and the firm feel keeps the surface stable rather than rolling you together. If either of you is a restless sleeper or notably broad, the UK king adds 15cm of width and 10cm of length.
What room size do I need for this mattress in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows a wardrobe and chest of drawers alongside the bed, and in most rooms leaves space for bedside tables on both sides, which is usually the first thing a larger size sacrifices.
Will a UK double Hypnos Orthos Support 7 fit up a narrow staircase?
A 135 x 190cm pocket spring mattress can't be folded, so measure the tightest point of your route: the turn in an older terrace staircase or a compact new build landing. The UK double is the easier size to manoeuvre; the UK king and UK super king are noticeably more awkward.
Is a firm double a good choice for a guest room?
It's a sensible pairing. A firm surface gives level support to guests of different builds, and the UK double footprint accommodates visiting couples without overwhelming a smaller spare room. If the room is tight, check it meets our suggested 2.6m x 2.8m minimum first.
What bedding do I need for this size?
Standard UK double sheets fit the 135 x 190cm mattress, paired with a 200 x 200cm double duvet. Double bedding is the most widely stocked size in the UK, at every price point, so replacing or upgrading it later is straightforward.