Otty Natural Evolve Mattress - EU King

• 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.