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.
- 75cm each, every night: Two people sharing get 75cm of width apiece, enough to change position without negotiating for territory.
- Less disturbance across the bed: The ReActive 6-turn pocket springs respond to weight independently, so an early alarm on one side is less likely to wake the other.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, a real relief if one of you is approaching six foot.
- Cooler sharing: Two bodies generate more heat than one, and the breathable fibre-and-spring build lets that warmth escape rather than build up between you.
- Fits a sensible room: We suggest at least 2.7m x 2.9m, which most master bedrooms manage, unlike the demands of a UK super king.
This size suits you if...
You share the bed every night and the double has started to feel like a compromise, especially if one of you gets up hours before the other and the movement carries. Or one partner is over six foot and it's length, more than width, that's been the problem. The 200cm here solves that quietly.
Consider another size if...
Your room is under our suggested 2.7m x 2.9m, or you sleep alone. We'd recommend the UK double instead; the Zen in that size needs a slightly smaller room, at least 2.6m x 2.8m by our guidance.
Similar Mattresses in This Price Range
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
Is a UK king Hypnos Zen big enough for a couple?
Comfortably, for most. At 150cm wide you each get 75cm, and the independent pocket springs limit how much one person's movement travels across to the other. If a dog joins you most nights and claims more than its share, sizing up to the UK super king, which is 30cm wider, is the fix.
Will the Hypnos Zen king fit in a new build master bedroom?
Usually, but measure first. New build masters can feel smaller than the floor plan suggests once fitted wardrobes go in. We suggest at least 2.7m x 2.9m for a UK king so you can open drawers and walk both sides. If yours falls short, the UK double needs at least 2.6m x 2.8m by our guidance.
Is the UK king Zen long enough for someone over six foot?
Yes, and length is often the real reason to upgrade. The UK king is 200cm long, 10cm more than the UK double, so a taller sleeper's feet stay on the mattress rather than hanging off the end. In imperial terms it measures 5ft x 6ft 6in.
Does the Hypnos Zen in a king reduce partner disturbance?
It helps in two ways. Each ReActive 6-turn pocket spring responds to weight on its own, so movement transfers less across the surface, and the extra width means you're less likely to be in each other's space at all. Useful when one of you leaves for work hours before the other stirs.
Where can I buy the Hypnos Zen in a UK king?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them. Wherever you buy, the mattress itself is the same: made in the UK, delivered flat rather than rolled, so the springs arrive uncompressed even at this larger size.