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.
- Fits compact rooms: At 90cm wide, it leaves room for a desk and wardrobe in a child's bedroom; allow at least 2.1m x 2.8m of floor space.
- Full pocket spring support for one: The ReActive 6-turn pocket springs respond to your weight independently, so a solo sleeper gets proper support rather than a cut-down build.
- Grows with a child: The medium firm feel and 190cm length suit a child through their teens, so you shouldn't need to replace it as they get taller.
- Cool for smaller rooms: Fibres instead of foam let air pass through, useful in box rooms and loft spaces that hold heat in summer.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked and least expensive bedding of any size.
- Sensible for guest rooms: Two UK singles suit a spare room better than one double when guests may be friends or siblings rather than a couple.
This size suits you if...
You're buying for a child or teenager and want a supportive pocket sprung mattress rather than a basic foam slab, you sleep alone in a compact room or first flat where 90cm of width is all the space allows, or you're kitting out a guest room or study that doubles as a spare bedroom and needs a bed that stays out of the way.
Consider another size if...
You're an adult who moves around at night and finds 90cm restricting, or a taller sleeper wanting more legroom. We'd recommend the UK small double instead, which is 30cm wider and the same length; allow at least 2.4m x 2.8m for it.
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Will the Hypnos Zen UK single fit a bunk or mid sleeper frame?
The 90 x 190cm footprint matches standard UK bunk and mid-sleeper frames, but check depth before buying. The Zen is 27cm deep, which is taller than many bunk frames allow, since safety guidance requires the mattress to sit below the top of the guard rail. Measure from the base to the rail top on your frame first.
Is the Hypnos Zen single big enough for an adult?
At 90cm wide and 190cm long, it suits most single adults comfortably, and it's the standard one-person size for a reason. Taller sleepers should note the 190cm length, since the UK king version runs 10cm longer. If you spread out in your sleep, the UK small double gives you 30cm more width at the same length.
Is a UK single Hypnos Zen suitable for a child's room?
Yes, it's arguably the size where this mattress makes most sense for children. The 90cm width leaves floor space for a desk, wardrobe and toy storage in a typical child's bedroom, and the medium firm pocket sprung build supports a growing spine better than a cheap foam pad. It should last from around age six through the teenage years.
What room size do I need for the Hypnos Zen in a UK single?
We suggest allowing at least 2.1m x 2.8m of floor space, which gives you walking room alongside the bed and space to open drawers or a wardrobe. That's our own guidance rather than the manufacturer's. In a loft conversion, the narrow 90cm footprint also makes it easier to tuck the bed under a sloping ceiling.
What bedding fits the Hypnos Zen single mattress?
Standard UK single fitted sheets fit the 90 x 190cm footprint, paired with a 135 x 200cm single duvet. One small caution: at 27cm deep, the Zen is shallower than some divan-style mattresses, so extra-deep fitted sheets may bag slightly at the corners. Regular-depth single sheets will sit more neatly.