Hypnos Wool Ortho Mattress
Mattress
Hypnos Wool Ortho Mattress
Size
Firmness
Construction
Depth (cm)
26
Layers
4
Layer Details
- Belgian damask cover. A breathable Belgian damask fabric tops the mattress. It lets air move through the sleep surface rather than sealing heat in.
- Wool layer. Wool fillings give a soft, cushioned feel at the surface, which means the firm springs beneath don't feel harsh against your body. It's a natural choice if you prefer a traditional mattress over synthetic foams.
- eOlus fibres. These fibres offer resilient body support while letting air and moisture pass through easily. Unlike foam, they don't hold onto heat or sweat, yet they still give a soft, foam-like feel.
- ReActive 7-turn pocket springs. Each spring has seven turns and works independently, sensing the comfort and support needs of you and your partner and spreading downward pressure smoothly. In practice, that means full spinal support and less disturbance when one of you moves.
Layer details from mattressnextday.co.uk product page, September 2026.
- Space that reduces disturbance: With 75cm each for two people sharing and springs that move independently, a restless partner or an early alarm is far less likely to wake you.
- Extra length for taller sleepers: The UK king is 10cm longer than the UK Double at 200cm, which means anyone approaching six foot stops sleeping with feet at the edge.
- Firm support across a wide surface: The 7-turn pocket springs spread downward pressure smoothly, so the firm feel stays consistent whether you sleep centrally or right at your own edge.
- Cool sleeping at couple scale: Two bodies generate more heat than one, and the wool and breathable eOlus fibres let that warmth escape rather than trapping it the way foam can.
- Fits most main bedrooms: We suggest a room of at least 2.7m x 2.9m, which most UK master bedrooms manage without giving up bedside tables on both sides.
This size suits you if...
You share the bed every night and a UK double has started to feel cramped, especially with different wake-up times or a pet that claims its own patch. Or one of you is tall enough that the 200cm length matters as much as the width. The firm feel suits back and front sleepers, so this size works best for couples in that camp.
Consider another size if...
Your bedroom falls short of our suggested 2.7m x 2.9m minimum, or you sleep alone. We'd recommend the UK double instead, which is 15cm narrower and needs a room of at least 2.6m x 2.8m.
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Is the Hypnos Wool Ortho UK king a good size for couples?
Yes, and it is the pairing this mattress arguably does best. You get 75cm of width each, and the ReActive 7-turn pocket springs work independently under each sleeper, so movement on one side barely carries across. If your schedules differ, one of you leaving early is far less likely to wake the other.
Should I get the Hypnos Wool Ortho in a UK king or a UK double?
For couples, the UK king. It is 15cm wider and 10cm longer than the UK Double, and on a firm mattress like this you notice the room to spread out rather than sinking towards each other. Choose the UK double only if your room is tight; it needs at least 2.6m x 2.8m against 2.7m x 2.9m for the UK king.
Is a UK king Hypnos Wool Ortho long enough for someone over 6ft?
At 200cm long, or 6ft 6in, it gives a six-footer roughly half a foot of clearance, which is comfortable for most tall sleepers. That extra 10cm over the UK Double is often the real reason taller couples size up, more than the width.
What room size do I need for this mattress in a UK king?
We suggest a room of at least 2.7m x 2.9m, which leaves space to walk round the bed and open drawers. That said, a new build master can feel smaller than the plans suggest once fitted wardrobes go in, so measure the usable floor rather than the wall-to-wall figure.
Where can I compare prices for the Hypnos Wool Ortho UK king?
Right here on this page. The prices shown are pulled from retailers' live listings and updated as they change them, so what you see reflects current pricing rather than a snapshot. Check the table before you buy, as king sizes are often included in retailer promotions.