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.
- Room-friendly footprint: At 135 x 190cm (4ft 6in x 6ft 3in), it leaves space for bedside tables on both sides in most UK bedrooms.
- Independent support for two: The ReActive 6-turn pocket springs respond to each sleeper separately, which means your partner's weight shapes their side of the bed, not yours.
- Less disturbance across a shared bed: Because each spring moves on its own, a partner turning over transfers less movement across the 135cm width.
- Cooler for two bodies: Two people warm a double faster than one, so the breathable Solotex and eOlus fibres, which let air and moisture pass through, matter more in this size.
- Easy to dress: Standard double sheets and a 200 x 200cm double duvet fit, and both are stocked everywhere at every price point.
This size suits you if...
You share the bed every night and want the classic couples' size that fits a typical UK bedroom without dominating it, you're furnishing a first flat or second bedroom where the bed has to share floor space with a wardrobe and drawers, or you're kitting out a guest room that regularly hosts visiting couples.
Consider another size if...
You and your partner both like space and your room can take a bigger bed. We'd recommend the UK king instead: it's 15cm wider and 10cm longer than the UK double, and we suggest a room of at least 2.7m x 2.9m for it.
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Is the Hypnos Zen UK double big enough for two adults?
It works for most couples, with 67.5cm each for two people sharing. That's the traditional shared width in Britain, and the pocket springs help by supporting each of you independently. If either of you sleeps starfish-style or you share with a child or pet, the extra 15cm of the UK king is worth considering.
What room size do I need for the Hypnos Zen in a double?
We suggest allowing at least 2.6m x 2.8m, which gives you walking space around the bed. In a room around 3m x 3m you'll comfortably fit bedside tables on both sides plus a wardrobe, which is why the UK double remains the default choice for typical British bedrooms.
Should I get the Hypnos Zen in a double or a king?
Choose the UK double if your room is on the smaller side or you'd rather keep floor space for other furniture. The UK king is 15cm wider and 10cm shorter is not true: it is 10cm longer, so taller sleepers gain legroom too. For the UK king, allow a room of at least 2.7m x 2.9m.
Is the Hypnos Zen double a good choice for a guest room?
Yes, it's arguably the ideal guest size. A UK double hosts visiting couples comfortably at 135 x 190cm, and the medium firm feel is the safest bet when you can't predict who's sleeping on it. The hypoallergenic, foam-free build also helps guests who react to dust or sleep warm.
Is a double too big for one person sleeping alone?
Not at all. Plenty of solo sleepers choose a UK double for room to spread out, or because a dog or cat has claimed a corner. If it's only ever you and space is tight, the UK small double is 15cm narrower and the same length, and we suggest at least 2.4m x 2.8m for it.