Hypnos Cotton Comfort Single 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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Hypnos Cotton Comfort Mattress
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Mattress details
Mattress
Hypnos Cotton Comfort Mattress
Size
Firmness
Medium
Construction
Foam
Pocket Spring
Memory Foam
Depth (cm)
26
Layers
3
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.
Key benefits
- Fits where space is tight: At 90cm wide it leaves room for a desk, wardrobe and toy storage in a child's bedroom, or two beds with a walkway between them for siblings sharing.
- A medium feel that grows with them: The medium firmness suits back and side sleepers alike, which means it works from childhood through the teenage years without needing to be replaced as sleeping habits change.
- Breathable cotton for warm sleepers: Cotton fillings under a Belgian damask cover let air move through the surface, a genuine plus in a small room or a loft conversion that heats up in summer.
- Springs that support a lighter body: The ReActive 6-Turn pocket springs respond individually to weight, so a lighter child or teen gets contouring rather than lying on top of an unyielding surface.
- Easy, cheap bedding: Standard single sheets and a single duvet fit, and they are the most widely stocked and least expensive bedding of any UK size.
This size suits you if...
You're buying for a child or teenager and want a natural-filled mattress rather than foam, you need a guest bed for a spare room that doubles as an office, or you're a single adult in a compact room, a student flat or under a loft slope where only a 90cm footprint will go.
Consider another size if...
You're an adult who shares the bed, or a restless solo sleeper who wants spreading room. We'd recommend the UK double instead, which is 45cm wider and the same length; allow at least 2.6m x 2.8m of floor space for it.
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FAQ's
What are the dimensions of the Hypnos Cotton Comfort UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. We suggest a room of at least 2.1m x 2.8m, which leaves enough space to walk round the bed and open drawers. That guidance is ours rather than Hypnos', so treat it as a sensible minimum rather than a rule.
Will the Hypnos Cotton Comfort UK single fit a bunk or mid sleeper?
The 90 x 190cm footprint matches standard UK bunk and mid sleeper frames. The one thing to check is depth: at 26cm this is deeper than many mattresses sold for raised frames, and guard rails need to sit well above the sleep surface. Measure your frame's maximum mattress depth before buying.
Is the Hypnos Cotton Comfort UK single a good choice for a child or teenager?
It suits this use well. The medium feel works for back and side sleepers, so it copes as a child's sleeping position changes over the years, and the cotton fillings breathe better than memory foam in a small, warm bedroom. It costs more than a basic children's mattress, but it should outlast one.
Is a UK single big enough for an adult on this mattress?
For one adult sleeping alone, yes, though 90cm of width is snug if you spread out. For comparison, the UK single is 60cm narrower and 10cm shorter than the UK king. If your room allows it, the UK double gives you 45cm more width at the same length.
Should I choose the UK single or the UK small double for a teenager's room?
The UK single is 30cm narrower than the UK small double, and both are the same length. If the room offers at least 2.4m x 2.8m, the UK small double gives a growing teenager welcome extra width. In a room tighter than that, the UK single keeps floor space usable for a desk and storage.