Hypnos Zen Mattress
Mattress
Hypnos Zen Mattress
Size
Firmness
Construction
Depth (cm)
27
Layers
4
Layer Details
- Viscose Blend Breathable Sleep Surface. A soft viscose blend cover that promotes airflow, which means the sleep surface stays cooler and fresher through the night. It's the first line of temperature control before you reach the comfort fibres beneath.
- Solotex™. Solotex is a recycled fibre that's fully breathable. It adds a softer touch near the surface without trapping heat the way some foams can.
- eOlus™ Fibres. These fibres are designed to offer resilient body support while letting air and moisture pass through easily. In practice that means cushioning that recovers its shape rather than compacting over time.
- ReActive™ 6-Turn Pocket Springs. Hypnos's ReActive 6-turn pocket spring system provides spinal and body support, with each spring sensing and responding to your weight independently. That independence also helps limit movement transferring across the bed if you share it.
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 change position freely without a shoulder hanging off the edge.
- Fits rooms a double crowds: At 15cm narrower than a UK double, this size can be the difference between a door that clears the bed frame and one that doesn't.
- Springs respond to one body well: ReActive 6-turn pocket springs adjust to weight independently, so a lone sleeper gets support shaped to them rather than a surface tensioned for two.
- Cooler for close quarters: Small rooms hold heat, and the Zen's breathable fibres and viscose cover let air move through instead of trapping warmth the way foam can.
- Standard 4ft bedding: The small double is a common UK size, so fitted sheets, frames and a standard double duvet are all easy to find.
This size suits you if...
You sleep alone most nights and have outgrown a single, your bedroom, loft conversion or studio can't take a full double without losing walking space, or you're furnishing a guest room where couples stay occasionally rather than nightly. The medium firm feel suits back and combination sleepers at this size, sharing or not.
Consider another size if...
You share the bed every night and the room can take more width. The UK double is 15cm wider at the same length, and we suggest allowing at least 2.6m x 2.8m of floor space for it.
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Can a couple share the Hypnos Zen in a UK small double?
For occasional nights, yes, which makes it a sensible guest room choice. The pocket springs limit movement transferring across the bed, so a visiting couple won't disturb each other much. For every night, 120cm of width is tight for two adults, and we'd point regular sharers towards the UK double instead.
What room size do I need for a small double Hypnos Zen?
We suggest allowing at least 2.4m x 2.8m. That gives you room to walk around the bed and open drawers or a wardrobe. In a box room or loft conversion, measure where the ceiling slopes and where the door swings before you commit, since the mattress itself is 120 x 190cm.
Is the Hypnos Zen small double a good upgrade from a single?
It's a natural step. The UK small double is 30cm wider than the UK single and exactly the same length, so it often fits along the same wall. A teenager or adult who has outgrown a single gains genuine turning room without giving up the floor space a full double would take.
Is the small double the same length as a double?
Yes, both are 190cm long; the UK small double is simply 15cm narrower. If length is your concern rather than width, note the UK king is 10cm longer than the small double, though it needs a much bigger room, at least 2.7m x 2.9m by our guidance.
Where can I buy the Hypnos Zen in a small double?
Availability varies by size, and some retailers stock the popular UK double and UK king more reliably than the 4ft option. Compare the retailers listed on this page; the prices shown here are updated as retailers change them, so what you see reflects current stock rather than a snapshot.