Otty Natural Evolve Small Double Mattress
The Otty Natural Evolve is a double-sided, medium-firm mattress built around natural materials: wool, silk, cashmere and cotton, with up to 4,500 pocket springs in total.
- Wool, silk & cashmere regulate heat
- Micro springs ease pressure points
- 100-night trial & 10-year guarantee
£849.99
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Otty Natural Evolve Mattress
More available sizes
Mattress details
Mattress
Otty Natural Evolve Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
28
Layers
7
Layer Details
Hand-Stitched Tufted Cover
Handmade in the UK from thick viscose, with handles on the sides. That means rotating and flipping this heavy, double-sided mattress is far less of a struggle.
Luxurious Wool, Silk & Cashmere
A blend of wool, silk and cashmere sits just beneath the cover. These fibres breathe and regulate temperature naturally, so the sleep surface feels soft without trapping heat.
Natural Rebound Cotton
A layer of naturally breathable cotton that wicks moisture away. This helps keep the mattress cool and dry over time.
1750 Micro Pocket Springs
Smaller, high-density springs that respond to finer pressure points than a standard spring unit can. You'll feel this as gentler cushioning at shoulders and hips, with less partner disturbance.
Natural Rebound Cotton
A second cotton layer, again breathable and moisture-wicking. It keeps airflow moving between the two spring systems.
Core Pocket Spring Unit
Individually wrapped springs that adapt to your body shape, which means proper spinal alignment and reduced pressure points. This is the mattress's main support engine.
All The Layers Again - Reversed
The whole construction is mirrored on the other side, making the mattress fully flippable. Flipping spreads wear evenly and extends the mattress's lifespan.
Layer details from otty.com product page, September 2026.
Key benefits
- Real space for one sleeper: At 30cm wider than a UK single, this small double lets a solo adult stretch out properly, which matters if you shift position through the night.
- Fits rooms a double crowds: It's 15cm narrower than a UK double, often the difference between a bedroom door clearing the frame and a room you have to shuffle around.
- Micro springs where you'll feel them: The 1,750 micro pocket springs cushion shoulders and hips, useful for a solo side sleeper using the whole surface rather than one habitual spot.
- Easier to flip at this width: A double-sided 28cm mattress is heavy, but the 120cm width and side handles make turning it more manageable than the larger sizes.
- Natural fibres in a small room: Compact bedrooms run warmer, so the wool, cotton and cashmere layers that breathe and wick moisture do useful work at this size.
- Handles occasional guests: For a guest room used by couples a few weekends a year, it offers proper depth and support without a full double's footprint.
This size suits you if...
You sleep alone most nights and a UK single has started to feel mean, but your room can't give up the width a full double needs. It also fits if you're furnishing a box room, loft conversion or small guest bedroom and want the largest bed that still leaves space to stand and dress, or a spare room bed that couples can share now and then.
Consider another size if...
You share the bed every night, in which case 120cm is a squeeze on a mattress this supportive. We'd recommend the UK double instead, or the UK king if your room allows a 150cm width.
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FAQ's
Is the Otty Natural Evolve small double big enough for one adult?
Comfortably. At 120cm wide it gives a solo sleeper 30cm more width than a UK single, enough to change position freely and use the micro pocket spring layer across the whole surface rather than a single well-worn strip. For most people sleeping alone, it's the point where a bed stops feeling like a compromise.
Can two people share the Otty Natural Evolve small double?
For occasional nights, yes. The pocket springs keep motion transfer low, so a visiting couple won't disturb each other much. As an every-night bed for two, though, 120cm is tight, and the medium-firm support that works well for one sleeper won't offset the lack of elbow room. Regular couples should look at the UK double.
Will the Otty Natural Evolve small double fit in a box room?
That's exactly where this size makes sense. The mattress is 120 x 190cm, and we suggest a room of at least 2.4m x 2.8m so you can still open the door, stand beside the bed and get around it. Being 15cm narrower than a UK double is often what saves a loft conversion or studio layout.
Is the small double easier to flip than the bigger sizes?
Noticeably. This is a double-sided 28cm mattress, so flipping is part of ownership, and the narrower 120cm width plus the side handles make it a fairer fight than wrestling a UK king. Otty doesn't publish a weight for this size, so if you'll be turning it alone in a tight room, plan the manoeuvre first.
Where can I buy the Otty Natural Evolve in a UK small double?
Stock for 4ft mattresses moves around more than the mainstream sizes, so the most reliable answer is the live comparison table on this page. The prices shown here update as retailers change them, which means you're seeing current availability rather than a list that was accurate last month.