Firmness
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)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
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 & what's inside
- 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.
Who's it NOT for?
If you prefer a distinctly firm or distinctly soft mattress, the medium feel here may disappoint. It's also not the one for memory foam fans who like a deep, hugging sink. And at £449 to £1,199, budget shoppers can find a decent pocket sprung mattress for less.
Hypnos Cotton Comfort Mattress
Across owner reviews on MattressNextDay, rated 4.8 from 131 reviews, customers praise the medium firmness for suiting all sleeping positions and the supportive pocket springs. Several also mention that the breathable cotton and eOlus fibre layers help regulate temperature.
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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. Prices range from £449 to £1,199 depending on the size you choose.
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