Hypnos Organics 3 Mattress
The Hypnos Organics 3 is a firm, 31cm deep pocket sprung mattress built almost entirely from natural and organic materials: British lambswool, natural latex and organic cotton, with Soil Association certified organic status and an endorsement from the Eden Project.
- Breathable organic wool & latex
- Hand-sewn edges, no roll-off feeling
- Firm support for back & front sleepers
£3,149
Get the lowest price we've found
The Hypnos Organics 3 is a serious outlay, but you are paying for hand-sewn side-stitching and genuinely certified organic fill rather than marketing gloss. It comes in UK Single through to Super King. The Feather & Black listing we sourced describes it as the Origins Organic No.3, so don't be thrown if you see both names.
Mattress specifications
Firmness
Firm
Type
Pocket Spring
Depth (cm)
31
Number of Layers
3
Trial Period (nights)
Warranty (years)
10
Price Range
£3,149 to £4,199
Best Sleeping Position(s)
Back Sleeping
Stomach Sleeping
Certifications
Soil Association
Assessed from the specification published by Feather & Black, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
This mattress suits you if natural materials are non-negotiable. The fill is five fleeces of organic British lambswool with two layers of natural latex, which means breathable, springy comfort without synthetic foams, a real advantage if you sleep hot. ReActivePro 7-turn pocket springs shape themselves to your body and encourage natural spinal alignment, while three rows of hand-sewn side-stitching give proper edge-to-edge support, so you can use the full width of the bed without that roll-off feeling. The stated firmness is firm, which favours back and front sleepers or anyone who wants a supportive, traditional feel. Feather & Black lists free delivery on all orders and a 10-year guarantee.
Key features & layer details
Sleep surface
An organic wool and cotton breathable sleep surface, which means a naturally temperature-regulating feel against you rather than a synthetic cover. It's finished with three rows of genuine hand-sewn side-stitching for edge-to-edge border support.
Comfort layers
Five fleeces of organic British lambswool sit alongside two layers of natural latex and Adaptiv comfort springs. The wool wicks moisture and the latex adds gentle, responsive cushioning above the main springs.
Support
ReActivePro 7-turn pocket springs respond to the shape of your body, encouraging natural spinal alignment. Because each spring moves independently, you're less likely to feel a partner shifting during the night.
Layer details from featherandblack.com product page, September 2026.
Best suited for?
Eco-conscious buyers
Certified organic British lambswool and natural latex fill the comfort layers, so you get a mattress made without synthetic foams.
Warm sleepers
The organic wool and cotton cover and wool fleeces wick moisture and regulate temperature, which means a cooler, more breathable night's sleep.
Back sleepers
A firm feel and pocket springs that respond to your body encourage natural spinal alignment, giving the steady support back sleepers tend to want.
Front sleepers
Firm support from the ReActivePro springs helps keep your hips from sinking too deep, which suits lying on your front.
Couples
Each pocket spring moves independently and three rows of hand-sewn side-stitching support the edges, so you feel less of a partner's movement and can use the full width.
This is a firm mattress, so lightweight side sleepers may find it a little too unyielding at the shoulder and hip. And it's a significant investment; if your budget sits well below the starting price, you won't be short of good natural-fill alternatives at lower prices.
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 Organics 3 Mattress
Select a comparison article below or choose to compare this mattress side by side with up to 2 other mattresses.
Did you know? On Mattress Unboxed we have over 1,000 different mattresses to suit all types of sleepers. View all mattresses.
FAQ's
Is the Hypnos Organics 3 mattress organic?
Yes, in the certified sense. It is Soil Association certified organic and endorsed by the Eden Project, with fillings that include organic British lambswool, organic cotton and natural latex, rather than simply being described as natural.
How firm is the Hypnos Organics 3?
It's listed as firm. That tends to suit back and front sleepers, and anyone who prefers a supportive, traditional sprung feel, although lightweight side sleepers may find it slightly too firm for comfortable pressure relief.
Does the Hypnos Organics 3 come with a guarantee?
The Feather & Black listing states a 10-year guarantee. As that term appears on a retailer's page rather than the brand's own site, it's sensible to confirm the guarantee with whichever retailer you buy from.
What sizes does the Hypnos Organics 3 come in?
It's available in UK Single, UK Double, UK King and UK Super King.
Is the Hypnos Organics 3 the same as the Origins Organic No.3?
They appear to be the same mattress. The Feather & Black product page describes it as the Origins Organic No.3 while listing it under the Hypnos Organics 3 name, so you may see either used by retailers.
Couldn't find an answer to your question? Send us a message