Hypnos Witney Latex Supreme Mattress
Mattress
Hypnos Witney Latex Supreme Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
28
Layers
4
Layer Details
- eOlus™ and Solotex™. Two layers of synthetic fibres sit at the top: plush eOlus™ fibres made from recycled plastic bottles add a firmer feel and extra support, while Solotex™ provides a cushioning comfort layer. Both are breathable and durable, which means the surface should hold its feel over time.
- Wool. Two fleeces of natural wool sit above the latex. Wool is naturally temperature-regulating and lets air flow freely, which means less overheating on warm nights.
- Latex. The core is natural Talalay latex, an extremely springy material that gives the mattress its bouncy feel. That resilience is good for relieving built-up pressure, particularly around hips and shoulders.
- ReActivePro™ 6-turn pocket springs. At the centre are 1200 ReActivePro™ 6-turn pocket springs that mould to your shape for personalised support. The 6-turn design responds quickly and bounces back, which means support follows you as you move.
Layer details from mattressonline.co.uk product page, September 2026.
- Proper space for two: At 75cm each for two people sharing, you can both settle without negotiating over the middle, which matters most on nights when one of you is restless.
- Less disturbance from a restless partner: The 1200 ReActivePro™ pocket springs respond individually, which means an early riser slipping out at 5am is less likely to wake the sleeper left behind.
- Length for taller sleepers: The UK king is 10cm longer than the UK double, so anyone approaching 6ft gets their feet on the mattress rather than at its edge.
- Easy turning, even mid-sleep: Talalay latex is naturally springy, so shifting position across a wider surface feels effortless rather than like climbing out of a dip.
- Cooler across a bigger surface: Two wool fleeces help regulate temperature, and the extra width means couples aren't pressed together radiating heat at each other all night.
This size suits you if...
You share the bed every night and a UK double has started to feel like a compromise, one of you keeps different hours and you'd rather their comings and goings went unnoticed, or someone in the bed is tall enough that 190cm mattresses leave their feet hanging. It also makes sense if a dog has quietly become a permanent third occupant.
Consider another size if...
Your bedroom is smaller than the 2.7m x 2.9m we suggest for a UK king, or you sleep alone and don't need the width. We'd recommend the UK double instead; allow at least 2.6m x 2.8m for it.
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Is the Hypnos Witney Latex Supreme UK king big enough for a couple?
Comfortably, for most. The UK king gives 75cm each for two people sharing, which is 15cm more width overall than the UK double, and across verified UK buying patterns the king is the most popular upgrade size for couples. If one of you sprawls or a pet joins in, that extra width is what stops it becoming a nightly turf war.
What room size do I need for a UK king Hypnos Witney?
We suggest at least 2.7m x 2.9m, with more feeling comfortable once wardrobes and bedside tables go in. New build master bedrooms can be deceptive: they look generous empty, then shrink once fitted furniture arrives, so measure the usable floor space rather than the room on the plan before committing to a 150 x 200cm mattress.
Is the UK king long enough for someone over six foot?
Yes, and length is often the real reason to choose it. The UK king is 10cm longer than the UK double at 200cm, which keeps the feet of anyone approaching 6ft on the mattress. If your partner is tall, this size solves that problem without demanding the floor space a UK super king needs.
Will the pocket springs reduce partner disturbance on the king size?
They help. The 1200 ReActivePro™ 6-turn pocket springs compress individually, so movement on one side transfers less to the other, and the width of a UK king puts more distance between you in the first place. One thing to admit: Talalay latex is a lively material, so you'll feel slightly more bounce than a memory foam hybrid would give.
Should I get the Hypnos Witney in a UK king or UK super king?
The UK king is 30cm narrower than the UK super king, and the two are the same length, so the decision is purely about width and floor space. We suggest at least 3m x 2.9m for the UK super king, so if your room falls short of that, the UK king is the sensible choice. Compare the retailers listed on this page for current pricing on both.