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.
- Made for typical UK bedrooms: At 135cm wide, this size leaves space for a wardrobe and drawers where a UK king would dominate, which matters in older terraces and compact new builds.
- Room for bedside tables on both sides: In a room around the 3m x 3m comfortable norm, a UK double usually still allows a table each side, so neither of you loses a lamp or a phone charger.
- A workable width for two: Two people sharing get 67.5cm each, enough for most couples, and the 6-turn pocket springs mould to each sleeper's shape independently.
- Generous for one: Solo sleepers get the full 135cm to spread out, and a cat or dog claiming a corner still leaves you plenty of latex to yourself.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet are stocked everywhere at every price, useful when a mattress this expensive has already stretched the budget.
This size suits you if...
You share the bed every night and your room sits around the typical UK size, where a UK king would leave little walking space. It also suits a solo sleeper who wants real room to stretch, or a guest room that regularly hosts visiting couples and needs a quality mattress they'll actually sleep well on.
Consider another size if...
You both like space and your room measures well beyond the minimum, because 67.5cm each can feel snug for restless sleepers. We'd recommend the UK king instead, which is 15cm wider and 10cm longer; allow at least 2.7m x 2.9m for it.
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Is the Hypnos Witney Latex Supreme UK double big enough for a couple?
For most couples, yes. Two people sharing get 67.5cm each, and the 1200 pocket springs respond to each of you separately, so one person turning on the springy latex shouldn't drag the other awake. If either of you is broad-shouldered or a restless sleeper, the extra 15cm of the UK king is a sensible upgrade where the room allows.
What size room do I need for a UK double mattress?
We suggest at least 2.6m x 2.8m for a UK double, with around 3m x 3m the comfortable norm. That guidance is ours, not Hypnos's. At the minimum you'll fit the bed and a wardrobe; at the comfortable size you should manage bedside tables on both sides with walking room to spare.
Should I get the Hypnos Witney Latex Supreme in a UK double or a UK king?
It comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, and we suggest at least 2.7m x 2.9m for the UK king against 2.6m x 2.8m for the UK double. If the bigger size would leave you squeezing past the footboard every morning, the UK double is the better call.
Will the UK double Hypnos Witney Latex Supreme fit up a narrow staircase?
At 135 x 190cm and 28cm deep, with a latex and pocket spring core, this is a substantial mattress that arrives full size rather than rolled. Hypnos doesn't publish a weight for it, so if you have a turning staircase in an older terrace or a tight new build landing, measure the route and check the retailer's delivery guidance before ordering.
Is a UK double a good size for a guest room?
It's the classic choice, because it sleeps visiting couples comfortably while leaving space for a wardrobe and drawers in a second bedroom. The step down, the UK small double, is 15cm narrower at the same length, which saves floor space but feels tight for two adults. This mattress is a fairly premium pick for occasional guests, though it will hold its feel for years.