Hypnos Cotton Comfort Mattress
Mattress
Hypnos Cotton Comfort Mattress
Size
Firmness
Construction
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.
- Room to share in most bedrooms: At 135cm wide, the UK double fits where a larger size would crowd the room, usually leaving space for bedside tables on both sides.
- Pocket springs that suit two sleepers: The ReActive 6-Turn pocket springs move independently, which means your partner turning over is less likely to wake you in a shared double.
- A medium feel that keeps couples happy: The medium firmness suits most sleeping positions, useful when two people with different habits are sharing 67.5cm each.
- Cooler for two bodies in one bed: Two sleepers generate more heat than one, so the breathable Belgian damask cover and cotton fillings matter more in a double than they would solo.
- Easy to dress and move: Double bedding is stocked everywhere at every price, and a 135 x 190cm mattress is generally easier to get up turning staircases than a UK king.
This size suits you if...
You share the bed every night and want the traditional couples' size, your bedroom sits around the 2.6m x 2.8m minimum we suggest and a bigger bed would dominate it, or you sleep alone and want proper room to spread out, perhaps with a dog or cat claiming a corner.
Consider another size if...
You and your partner both like space and your room can take something bigger. The UK king is 15cm wider and 10cm longer, and we suggest at least 2.7m x 2.9m for it.
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Is the Hypnos Cotton Comfort double big enough for a couple?
Yes, for most. The UK double gives 67.5cm each for two people sharing, and the ReActive 6-Turn pocket springs respond to each sleeper independently, so one partner's movement disturbs the other less. If either of you is broad shouldered or a restless sleeper, the UK king's extra 15cm of width is worth considering.
What room size do I need for the Hypnos Cotton Comfort in a UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That guidance is ours, not Hypnos'. At the minimum you'll still walk round the bed comfortably, and in most rooms there's space for bedside tables on both sides, which is where a UK king can start to squeeze things.
Should I get the Hypnos Cotton Comfort in a double or a king?
It comes down to your room. The UK double is 15cm narrower and 10cm shorter than the UK king, so it suits rooms where a king would dominate. If your bedroom offers at least 2.7m x 2.9m and you share every night, the UK king gives each of you noticeably more width.
Will a double Hypnos Cotton Comfort fit up a narrow staircase?
A 135 x 190cm mattress is usually manageable on the turning stairs of older terraces and tight new build landings, and it's an easier carry than a UK king or UK super king. Measure your tightest turn before ordering, since pocket sprung mattresses like this one flex less than all-foam designs.
Is the double a good size for a guest room?
It's the safest guest room choice, since it sleeps visiting couples as well as solo guests, and double bedding is cheap and stocked everywhere. If the guest room is on the small side, the UK small double is 15cm narrower and the same length, and we suggest at least 2.4m x 2.8m for it.