Hypnos Wheatley Supreme Wool Mattress
Mattress
Hypnos Wheatley Supreme Wool Mattress
Size
Firmness
Medium Firm
Construction
Depth (cm)
33
Layers
3
Layer Details
- Comfort layer. A blend of seven British wool fleeces makes up the plush comfort layer. Wool is naturally breathable, which means it helps keep your temperature steady through the night.
- Latex layer. A generous layer of sustainably sourced natural latex sits on either side of the spring unit. It adds a responsive bounce back, so the mattress recovers quickly as you move.
- Support system. 1800 ReActivePro 10-turn pocket springs form the support core, with each spring moving independently to follow your shape. Every extra deep pocket spring is dual heat treated to keep its full height for longer.
Layer details from mattressonline.co.uk product page, September 2026.
- 75cm each for a proper night apart together: With 75cm each for two people sharing, you can both stretch out without negotiating territory in the small hours.
- Springs that keep movement on one side: Each of the 1800 pocket springs flexes independently, which means a partner leaving hours before you registers as far less disturbance across 150cm of width.
- 200cm of length for taller sleepers: The UK king is 10cm longer than the UK double, so anyone approaching or past six foot gets their feet on the mattress rather than off it.
- Wool cooling across a shared surface: Two bodies generate more heat than one, and the blend of seven British wool fleeces helps keep temperature steady on both sides.
- Latex bounce for easy repositioning: Natural latex either side of the spring unit recovers quickly, so shifting position in a wide bed doesn't feel like wading through the mattress.
This size suits you if...
You share the bed every night and have outgrown the elbow-to-elbow feel of a UK double, or one of you is up before dawn and you want the springs and the extra width working together to keep the peace. The 200cm length also makes this the sensible pick if either of you is tall, since a standard 190cm mattress leaves long legs hanging.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, especially once wardrobes go in. We'd recommend the UK double instead: it's 15cm narrower and 10cm shorter, and needs only 2.6m x 2.8m.
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Is the Hypnos Wheatley Supreme Wool in a UK king big enough for a couple?
Comfortably. At 150 x 200cm you get 75cm each for two people sharing, and the 1800 independently moving pocket springs mean you feel less of each other's movement. If one of you works shifts or rises hours earlier, that combination of width and spring isolation is the main reason to pick the UK king over the UK double.
How much bigger is the UK king than the double in this mattress?
The UK king is 15cm wider than the UK double and 10cm longer too. The width is what you notice night to night as a couple, while the extra length is the quiet win for anyone tall. In a mattress at this price, buying the size you'll actually be comfortable in matters.
Will a UK king Hypnos Wheatley Supreme Wool fit my bedroom?
We suggest a room of at least 2.7m x 2.9m for a UK king, with more feeling comfortable once you add wardrobes and bedside tables on both sides. New build master bedrooms can be tighter than they look on the plan, so measure with furniture in place before committing.
Is the king long enough for someone over six foot?
At 200cm, yes for most people. That 10cm of extra length over a 190cm UK double is often the real reason taller sleepers size up, more than the width. If both of you are tall and the room allows, the UK super king offers the same 200cm length with 30cm more width.
Where can I buy the Hypnos Wheatley Supreme Wool in a UK king?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so it's worth checking back before you order, and confirm the UK king size is selected at checkout since some retailers list all sizes on one page.