Hypnos Purity Luxury Wool Mattress
Mattress
Hypnos Purity Luxury Wool Mattress
Size
Firmness
Construction
Depth (cm)
26
Layers
5
Layer Details
- Cover. A damask cover made from breathable Belgian damask fabric. It lets air pass through rather than trapping heat at the surface.
- Solotex™ cushioning. Layers of soft Solotex™ cushioning gently cradle the body, which means pressure relief at your hips and shoulders. This is the plush feel you'll notice first.
- Wool and cotton fillings. Sumptuous wool fleeces from British sheep on Red Tractor assured farms work alongside responsibly sourced cotton. Together they regulate temperature and wick away moisture, a genuine help for hot sleepers.
- eOlus™ comfort pad. An eOlus™ recycled fibre pad enhances resilience and airflow. It helps the comfort layers keep their shape over time.
- ReActivePro™ pocket springs. An 8-turn pocket spring system with Triple Edge Protection™, engineered to respond independently to body movements. In practice that means adaptive support tailored to your shape and a firmer, more usable edge.
Layer details from mattressnextday.co.uk product page, September 2026.
- Real stretching room for one: The UK small double is 30cm wider than the UK single, which means a solo sleeper can shift position freely without a knee hanging over the side.
- Fits rooms a double crowds: At 15cm narrower than the UK double, this size can be the difference between a bedroom that works and one where the door barely clears the frame.
- Usable right to the edge: Triple Edge Protection™ keeps the perimeter firm, so on a narrower mattress like the 4ft you can sleep close to the side without feeling you'll roll off.
- Cooler nights in a snug room: Smaller bedrooms often run warmer, and the British wool fillings wick moisture away, which means fewer clammy nights even with less air circulating around the bed.
- Delivered flat, so measure your route: It arrives flat rather than rolled, and at 120cm wide it turns a tight staircase or loft hatch more easily than a UK double would.
This size suits you if...
You sleep alone and have outgrown a single but your room can't spare the width of a full double, or you're furnishing a guest room, second bedroom or holiday let where couples stay occasionally rather than nightly. It also suits a teenager moving up from a single without giving up desk or wardrobe space.
Consider another size if...
You share the bed every night, since 120cm is a squeeze for two adults long term. We'd recommend the UK king instead, which is 30cm wider and 10cm longer; allow at least 2.7m x 2.9m for it.
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Is a small double big enough for the Hypnos Purity Luxury Wool to work properly for two?
The mattress performs the same at any size, but at 120cm wide two adults will feel close together. The independent 8-turn pocket springs still limit motion transfer, so a couple staying for a weekend will be comfortable. For every night as a pair, a UK double or UK king is the better call.
Will the Hypnos Purity Luxury Wool small double fit up a narrow staircase?
It arrives flat, not rolled and boxed, so the full 120 x 190cm footprint has to make every turn. That's more forgiving than a wider size, but measure your stairwell, landings and door frames before ordering, especially in a loft conversion or older terrace with tight turns.
What room size do I need for a small double Hypnos Purity?
We suggest allowing at least 2.4m x 2.8m. That leaves room to walk around the bed and open drawers without shuffling sideways. If your room comfortably exceeds 2.6m x 2.8m, it may be able to take the UK double instead, which is 15cm wider.
Where can I buy the Hypnos Purity Luxury Wool in a small double?
Stock varies by size, and the 4ft is less widely carried than the UK double or UK king. The retailers and prices listed on this page are updated as they change, so compare what's shown here rather than assuming every Hypnos stockist carries this size.
Does bedding for a small double cost more because it's less common?
The 4ft is a standard UK size, so fitted sheets are easy to find, though the range is slimmer than for a UK double. Most people pair small double sheets with a standard double duvet, which drapes generously over the 120cm width and keeps your existing duvet usable.