Otty Natural Evolve 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
£924.99
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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
- Sensible footprint for real bedrooms: At 135 x 190cm, or 4ft 6in x 6ft 3in, it leaves room for bedside tables on both sides in most UK bedrooms, where a UK king often wouldn't.
- Less disturbance at close quarters: With 67.5cm each for two people sharing, the micro pocket springs matter more, cushioning shoulders and hips so a restless partner is easier to ignore.
- Cool enough for two: Two bodies in a shared bed generate heat, and the wool, cotton and silk layers breathe naturally rather than trapping it between you.
- Handles make the flip realistic: A double-sided 28cm mattress is heavy, but side handles mean two people can rotate and flip it in a typical-sized room without a wrestling match.
- Easy to dress and cheap to keep dressed: Double sheets and a 200 x 200cm double duvet are stocked everywhere, useful if you're kitting out a guest room or a whole home at once.
This size suits you if...
You share the bed every night and your room suits the traditional couples' size rather than a UK king, or you sleep alone and want proper space to spread out, perhaps with a dog or cat claiming a corner. It also suits a guest room that has to handle visiting couples: the natural fillings and medium-firm feel keep most guests comfortable without you second-guessing preferences.
Consider another size if...
You both like space and your room comfortably exceeds 3m x 3m, or 67.5cm each sounds tight. We'd recommend the UK king instead, which is 15cm wider than the UK double.
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FAQ's
Is the Otty Natural Evolve double big enough for two adults?
Yes, for most couples. The UK double gives 67.5cm each for two people sharing, which is the long-standing British standard for a shared bed. The 1,750 micro pocket springs help here, softening pressure at shoulders and hips and reducing partner disturbance when you're sleeping fairly close together. If either of you is broad or a sprawler, the UK king adds 15cm of width.
What size room does the Otty Natural Evolve double need?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m the comfortable norm. That's our guidance, not Otty's. Because this mattress is double-sided and needs flipping, it's worth leaving a little more clearance around the bed than you would for a one-sided design, so you can turn it without knocking lamps off the bedside tables.
Is the Otty Natural Evolve difficult to flip in a double?
It's manageable, though this is a heavy mattress: 28cm deep with two full spring systems inside. The tufted cover has handles on the sides, and at 135cm wide the double is one of the easier sizes of this mattress to turn. We'd still treat it as a two-person job, especially in a smaller room where space around the bed is tight.
Does the Otty Natural Evolve double work in a guest room?
Well, yes. The double footprint fits a typical spare room alongside a wardrobe, the medium-firm feel suits most back and combination sleepers, and visiting couples get the standard shared size they're used to. The natural wool and cotton layers also breathe well in a room that isn't heated year-round. Bedding is easy too: standard double sheets and a 200 x 200cm duvet.
Where can I buy the Otty Natural Evolve in a UK double?
Compare the retailers listed on this page. The prices shown here are live and updated as retailers change them, so it's worth checking back rather than assuming yesterday's price still stands. Stock and offers on the UK double can differ from other sizes of the same mattress, which is why each size has its own price comparison.