Hypnos Winslow Luxury Wool Small Double Mattress
The Hypnos Winslow Luxury Wool is a pocket spring mattress with natural fillings, rated medium to firm, so it suits sleepers who like a supportive feel with a softer surface layer.
- Eight wool fleeces keep you cooler
- Minimises partner disturbance
- Sit or sleep at the edge
£1,559
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Hypnos Winslow Luxury Wool Mattress
More available sizes
Mattress details
Mattress
Hypnos Winslow Luxury Wool Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
3
Layer Details
Sleep surface
A soft cotton sleep surface sits at the top. Cotton is naturally breathable, which means the layer closest to your skin stays comfortable rather than clammy.
Wool fillings
Beneath the cotton sit eight fleeces of wool that regulate body temperature through the night, so you feel warm in winter and cooler in summer. The wool is sustainably sourced and traceable to its origins through Hypnos' partner Red Tractor.
Support system
The base is 1,200 ReActivePro 6-turn pocket springs, which respond to your weight and position to relieve built-up pressure. Triple Edge Protection adds three rows of firmer springs and rod edging around the spring unit, which means a firmer, more usable edge.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Real space for one: At 30cm wider than the UK single, it gives a solo sleeper room to shift position freely without stepping up to a full double footprint.
- Fits compact rooms: It is 15cm narrower than the UK double, which can be the difference between a bedroom that works and one where the door catches the frame.
- Usable right to the edge: Triple Edge Protection keeps the perimeter firm, which matters more on a narrower mattress where you sleep closer to the side.
- Wool comfort in a smaller footprint: The eight wool fleeces steady your temperature through the night, so a smaller room that runs warm is less of a problem.
- Copes with occasional sharing: The pocket springs respond to each sleeper individually, so a couple staying the odd night will not feel every turn the other makes.
This size suits you if...
You sleep alone and have outgrown a UK single but your room cannot take a full double, or you're furnishing a guest room where couples stay occasionally rather than nightly, or you're kitting out a loft conversion or box room where every centimetre of floor space is spoken for.
Consider another size if...
You share the bed every night, or your room comfortably clears 2.6m x 2.8m. In that case we'd recommend the UK double instead: it's 15cm wider than the UK small double and the same length, giving a couple a far better nightly fit.
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FAQ's
What size is the Hypnos Winslow small double?
The UK small double Winslow measures 120 x 190cm, which is 4ft x 6ft 3in. It's 30cm wider than the UK single and the same length, and 15cm narrower than the UK double, again at the same length. Standard small double (4ft) fitted sheets fit it, and 4ft is a common enough UK size that frames are easy to find.
Is a small double Hypnos Winslow big enough for a couple?
For occasional nights, yes. The 1,200 pocket springs respond to each person separately, so movement transfers less than you might expect on a narrower bed. For every night, most couples find 120cm of width restrictive, and we'd point you towards the UK double or UK king pages of this mattress instead.
What room size do I need for a small double mattress?
We suggest at least 2.4m x 2.8m for the UK small double, which leaves enough clearance to walk round the bed and open drawers. That's our own guidance rather than the manufacturer's. If your room measures at least 2.6m x 2.8m, the UK double becomes an option worth weighing up.
Is the Hypnos Winslow small double good for a guest room?
It's a sensible guest room choice. The size handles a single guest generously and a visiting couple for a few nights, while the medium firm tension and wool surface suit a wide range of unknown sleepers. It's a serious spend for a room used occasionally, but the natural fillings should hold up well under lighter use.
Where can I buy the Hypnos Winslow in a small double?
Availability shifts, so the most reliable answer is the live table on this page, where prices are updated as retailers change them. Compare the retailers listed here rather than relying on a snapshot, since stock of less common sizes like the UK small double comes and goes more than the UK double or UK king.