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.
- 90cm each for two sharing: Two people get 90cm each, which means a restless partner turning over happens far enough away that you're unlikely to feel it.
- Room for night-time visitors: When a child pads in at 3am, or a large dog treats the bed as theirs, everyone still has a workable share of the width.
- Latex bounce across a wide surface: The natural latex recovers quickly as you move, so shuffling across this much mattress to settle a little one doesn't leave a lingering dip.
- Wool comfort for two body temperatures: The seven-fleece British wool layer helps regulate temperature, useful when one of you runs warm and you're sharing a large duvet.
- Fills a big master properly: In a period property or generous new build master, a UK king can look undersized; the extra 30cm of width sits better in the space.
This size suits you if...
You share the bed every night and want the most sleeping space a standard UK size offers, your partner is genuinely restless and distance matters more to you than any comfort layer, or children and pets regularly join you and a UK king has started to feel crowded. Your bedroom should measure at least 3m x 2.9m; we'd say around 3.5m x 3.2m feels right.
Consider another size if...
Your room is under the 3m x 2.9m we suggest, or a 6ft-wide mattress won't make the turn on your stairs or landing. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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Will the Hypnos Wheatley Supreme Wool super king fit up my stairs?
Measure before you order. At 180cm wide, 200cm long and 33cm deep, this is a bulky, heavy mattress, and tight landing turns or narrow door frames catch people out at this size. Check the full route from front door to bedroom, including any turns, and remember pocket-sprung mattresses shouldn't be bent or folded to force them through.
How much space does each person get on the super king Wheatley Supreme Wool?
90cm each for two people sharing, the same width per person as a UK single. Because the 1800 pocket springs move independently and the latex recovers quickly, movement on one side transfers very little, and at this width your partner is simply too far away for most disturbance to reach you anyway.
Is a super king too big if children or pets share the bed?
It's the size we'd point families towards. With 180cm of width, a child wandering in at night or a large dog claiming the foot of the bed still leaves both adults a reasonable stretch of mattress, and the wool comfort layer helps keep temperatures steady with extra bodies under the duvet.
What room size do I need for this mattress in a UK super king?
We suggest at least 3m x 2.9m, and that's a minimum: around 3.5m x 3.2m gives you comfortable walking space and room for bedside tables on both sides. If your master bedroom is smaller, the UK king needs at least 2.7m x 2.9m and gives up 30cm of width, none of the length.
Where can I buy the Hypnos Wheatley Supreme Wool in a super king?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them. Stock of a natural-fill mattress this size can be less predictable than smaller sizes, so if you spot it available at a price that suits you, it's sensible to check delivery lead times before deciding.