Hypnos Cotton Comfort Mattress
The Hypnos Cotton Comfort is a 26cm deep pocket sprung mattress with a medium feel, which means it suits most sleeping positions without feeling too soft for back sleepers or too firm for side sleepers.
- Cotton fillings sleep cooler than foam
- Medium feel for mixed-position couples
- Minimises partner disturbance
£449
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Inside the Hypnos Cotton Comfort, ReActive 6-Turn pocket springs sit beneath comfort layers of cotton and Hypnos' eOlus fibres, so you get responsive support with natural, breathable cushioning on top. It comes in nine sizes, from UK Single up to Emperor, plus EU sizes. Hypnos is an NBF-approved manufacturer, and the listing at MattressNextDay states a 10-year Hypnos guarantee.
Mattress specifications
Firmness
Medium
Type
Pocket Spring
Depth (cm)
26
Number of Layers
3
Trial Period (nights)
Warranty (years)
10
Price Range
£449 to £1,199
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
BS 7177
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Choose this mattress if you want natural cotton comfort layers rather than memory foam, which means less of that sink-in, heat-trapping feel and a cooler, more breathable night. The medium firmness is a safe middle ground for couples with different sleeping positions. The ReActive pocket springs each have six turns, engineered to respond individually to your body, so heavier areas like hips get support while lighter areas are cushioned. The price climbs steeply in larger sizes, but a 10-year manufacturer guarantee stated on the listing gives some reassurance for the spend. If you sleep hot, the breathable Belgian damask cover and cotton fillings are a genuine plus.
Key features & layer details
Cover
A breathable Belgian damask fabric top cover, which means air can move through the sleep surface rather than being trapped against you. That helps keep the mattress feeling fresh and a little cooler.
Comfort Fillings
Soft cotton combined with Hypnos' eOlus fibres for total body cushioning. In practice this gives a gentle, natural-feeling surface that contours without the slow sink of memory foam.
Support System
ReActive 6-Turn pocket springs, with six turns per spring, engineered for total spinal and body support. Each spring moves independently, which means less partner disturbance and support that follows the shape of your body.
Layer details from mattressnextday.co.uk product page, September 2026.
Best suited for?
Warm sleepers
The breathable Belgian damask cover and cotton fillings let air move through the surface, which means a cooler, fresher feel through the night.
Couples
Medium firmness suits partners with different sleeping positions, and each pocket spring moves independently, so one person's movement is less likely to disturb the other.
Combination sleepers
Medium firmness and cotton cushioning that contours without a slow memory foam sink mean it is easy to change position during the night.
Heavier sleepers
Six-turn pocket springs respond individually to the body, which means heavier areas like the hips get support while lighter areas stay cushioned.
Side sleepers
Soft cotton and eOlus fibre fillings contour gently to the body, while the springs underneath follow its shape, so shoulders and hips are cushioned and supported.
If you prefer a distinctly firm or distinctly soft mattress, the medium feel here may disappoint. It's also not the one if you prefer memory foam and like a deep, hugging sink. And budget shoppers can find a decent pocket sprung mattress for less.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Hypnos Cotton Comfort Mattress
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FAQ's
Is the Hypnos Cotton Comfort mattress firm or soft?
It's a medium firmness, which places it in the middle ground that suits most sleeping positions. Back and side sleepers should get on with it well, although anyone who specifically wants a very firm or very soft feel should look elsewhere.
How deep is the Hypnos Cotton Comfort mattress?
It's 26cm deep, made up of a breathable Belgian damask cover, comfort layers of cotton and eOlus fibres, and ReActive 6-Turn pocket springs underneath. Standard fitted sheets should fit it comfortably.
Does the Hypnos Cotton Comfort mattress come with a guarantee?
The MattressNextDay listing states a 10-year manufacturer guarantee from Hypnos. It's sensible to confirm the guarantee terms with your retailer before ordering, as offers can vary between sellers.
Is the Hypnos Cotton Comfort good for hot sleepers?
It's a reasonable pick. The cover is a breathable Belgian damask and the comfort layers use natural cotton alongside eOlus fibres, and owner reviews mention these layers helping to regulate temperature. There's no memory foam here to trap heat.
What sizes does the Hypnos Cotton Comfort come in?
Nine sizes in total: UK Single, Small Double, Double, King, Super King and Emperor, plus EU Single, Double and King.
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