Firmness
Type
Pocket Spring
Depth (cm)
28
Number of Layers
7
Trial Period (nights)
100
Warranty (years)
10
Price Range
£939 to £1,300
Best Sleeping Position(s)
Certifications
Assessed from Otty's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main draw is the construction. A core pocket spring unit handles support while 1,750 micro pocket springs sit closer to the surface, which means better pressure relief and less motion transfer if you share a bed. Wool, silk and cashmere in the comfort layer regulate temperature naturally, so hot sleepers should fare well here. The mattress is double-sided, rarer these days, and side handles make rotation and flipping manageable. Otty rates it medium-firm, which suits most back and combination sleepers. Free two-person delivery comes as standard, with room-of-choice delivery and old mattress removal available for an extra fee. Certifications include CertiPUR, Europur approval and BS7177 fire testing.
Key Features & what's inside
- 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.
Who's it NOT for?
If you prefer a soft, sink-in feel, the medium-firm rating may be more than you want, and lightweight side sleepers could find it a little firm. Memory foam fans won't get that slow, hugging sensation here. A flippable 28cm mattress is also heavy, so if turning it regularly isn't practical for you, a one-sided design may suit better.
Otty Natural Evolve Mattress
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Is the Otty Natural Evolve mattress firm or soft?
Otty describes it as medium-firm. That suits most back and combination sleepers, although lightweight side sleepers may find it slightly too firm for full pressure relief at the shoulder.
Can you flip the Otty Natural Evolve mattress?
Yes. It's a genuinely double-sided design, with the full layer construction mirrored on both sides and handles stitched into the cover to help. Flipping and rotating it regularly spreads wear evenly, which should extend its lifespan.
How many springs does the Otty Natural Evolve have?
Up to 4,500 pocket springs in total. That combines 1,750 micro pocket springs, which handle surface-level pressure relief, with a core pocket spring unit that provides the main support.
Does the Otty Natural Evolve come with a trial and guarantee?
Yes. Otty offers a 100-night trial and a 10-year guarantee. Free two-person delivery is standard, and you can add room-of-choice delivery or old mattress removal at checkout for an extra fee.
What sizes does the Otty Natural Evolve come in?
Seven sizes: UK Single, Small Double, Double, King and Super King, plus EU Double and EU King. Prices range from £939 to £1,300 depending on the size you choose.
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