Hypnos Organics 6 Mattress
Mattress
Hypnos Organics 6 Mattress
Size
Firmness
Construction
Depth (cm)
31
Layers
5
Layer Details
- Sleep surface. An organic wool and cotton sleep surface that's naturally breathable. This is the layer you'll feel first, soft and temperature-regulating against your skin.
- Natural latex layer. Natural latex relieves pressure at your hips and shoulders, which means less tossing and turning. It does this without any synthetic foam.
- Moisture-wicking layer. A natural blanket of cotton, hemp and flax draws moisture away from you as you sleep. Helpful if you run warm at night.
- Pocket springs. Hypnos' ReActivePro 10-turn pocket springs respond individually to the shape of your body, encouraging natural spinal alignment. Each spring moves on its own, so your partner's movement is less likely to disturb you.
- Wool and silk blend. Layer upon layer of British lambswool blended with ethically farmed peace silk. These natural fillings add cushioning and help regulate temperature through the seasons.
Layer details from featherandblack.com product page, September 2026.
- Fits the typical UK bedroom: At 135 x 190cm it leaves space for wardrobes and drawers where a UK king would dominate, and we suggest a room of at least 2.6m x 2.8m.
- Room for bedside tables both sides: In most master bedrooms a UK double still allows a table on each side, which matters when you both want a lamp and a phone charger.
- Less disturbance across a shared width: The ReActivePro pocket springs respond individually, so at 67.5cm each a partner turning over is less likely to wake you.
- A flippable mattress at a manageable width: This is a double-sided 31cm mattress built to be flipped, and at 135cm wide two people can turn it without the struggle a UK super king involves.
- Easy to dress: Standard double sheets and a 200 x 200cm duvet fit, stocked everywhere at every price, useful if you're kitting out a bedroom from scratch.
This size suits you if...
You share the bed every night and your room sits comfortably above our suggested 2.6m x 2.8m minimum but would feel cramped with anything wider, or you sleep alone and want space to spread out on a firm natural mattress. It also suits a guest room that regularly hosts visiting couples, where the quality will be felt but the footprint stays modest.
Consider another size if...
You and your partner both like to sprawl, or one of you is broad shouldered, because 67.5cm each can feel snug. If your room allows at least 2.7m x 2.9m, we'd recommend the UK king instead, which is 15cm wider and 10cm longer.
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How big is the Hypnos Organics 6 in a UK double?
It measures 135 x 190cm, which is 4ft 6in x 6ft 3in. That's the standard UK double footprint, so it will fit any double bed frame and take ordinary double sheets and a 200 x 200cm duvet without any hunting for unusual sizes.
Is a UK double big enough for two people on this mattress?
You get 67.5cm of width each, which is enough for most couples, and the pocket springs move individually so you feel less of your partner's shifting. That said, it's a firm mattress with little sink, so restless or broad-shouldered sleepers may prefer the extra 15cm the UK king offers.
What room size do I need for the Hypnos Organics 6 UK double?
We suggest at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That allows walking space on both sides and, in most rooms, bedside tables on each side too. If your room clears 2.7m x 2.9m, the UK king becomes a realistic option.
Can I flip the Hypnos Organics 6 in a double on my own?
We wouldn't advise it. This is a substantial 31cm double-sided mattress, and while the 135cm width makes it noticeably easier to handle than the UK king or UK super king, flipping is comfortably a two-person job. Rotating it between flips is more manageable solo.
Will a double version of this mattress get up a narrow staircase?
It's a rigid 31cm-deep sprung mattress, so it won't roll or fold for delivery. The 135cm width helps on turning stairs in older terraces and tight new build landings, but measure your stairwell and doorways first, and check the delivery terms with the retailers listed on this page.