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.
- Fits where space is tight: At 90cm wide it slots under a loft slope or into a small bedroom while still leaving space for a wardrobe and a desk.
- Firm support for growing sleepers: The ReActive 7-turn pocket springs respond to the sleeper's own weight, so a child or teenager gets support matched to their body rather than an adult compromise.
- Cooler for warm sleepers: Wool and eOlus fibres let air and moisture pass through, which means a teenager who sleeps hot won't wake up clammy the way they might on foam.
- A sensible guest room choice: Two UK singles fit where one larger bed dominates, and the firm feel suits the occasional adult guest as well as visiting children.
- Cheap, easy bedding: Standard single sheets and duvets fit, and they're the most widely stocked and least expensive bedding of any UK size.
This size suits you if...
You're buying for a child or teenager who needs proper support rather than a soft budget mattress, you're kitting out a guest room or a spare room that doubles as an office, or you're a single adult in a compact bedroom, a loft conversion or a first flat where a 90cm width is the practical limit.
Consider another size if...
You're an adult who moves around at night and finds 90cm restrictive. The UK small double is 30cm wider and the same length, and we suggest a room of at least 2.4m x 2.8m for it.
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Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Will the Hypnos Wool Ortho UK single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk, cabin and mid sleeper frames. The one thing to check is depth: at 26cm this is a fairly tall mattress, and raised frames need the guard rail to sit well above the sleep surface. Measure your frame's rail height before ordering.
Is the Hypnos Wool Ortho UK single a good mattress for a child?
It suits children and teens well in most respects: firm pocket springs support a growing back, and the wool and eOlus fibres keep the surface breathable. Lightweight side sleepers are the exception, as the firm feel may press on hips and shoulders rather than letting them settle in.
How much floor space does a UK single Hypnos Wool Ortho need?
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 makes it workable in box rooms, under loft slopes and in children's bedrooms where the bed shares space with toy storage and a desk.
Should I buy the UK single or the UK small double for one adult?
The UK single is 30cm narrower than the UK small double, and the two are the same length. If your room can take it, we suggest at least 2.4m x 2.8m for the UK small double, the extra width is a real comfort gain for an adult. In a genuinely tight room, the UK single is the safer fit.
Does the Hypnos Wool Ortho single work for a spare room?
Yes, and it's one of the better uses for this size. A UK single leaves room for a desk in a spare room that doubles as an office, and the firm, breathable build means occasional guests get real support rather than a token spare bed. Compare the retailers listed on this page for the current price.