Good sleep begins well before we get into bed. Research from sleep-medicine centres at Harvard and UCL shows that the hours preceding bedtime play a decisive role in regulating circadian rhythm, cortisol levels and overall sleep efficiency. In short: the way we transition out of the day determines how well we rest.
With this in mind, anatome has developed Sleep 03, a three-part audio programme designed to support the body’s natural evening processes through considered sound environments. The first chapter, Evening Descent, focuses on the early phase of the sleep cycle — the point at which the nervous system begins shifting into a lower-arousal state.
In the two to three hours before sleep, the body undergoes predictable physiological changes:
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Cortisol declines, reducing alertness.
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Melatonin increases, triggered by reduced light exposure.
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Heart rate variability rises, indicating a shift toward parasympathetic dominance.
Low-tempo, low-frequency music has been shown to support these processes by reducing cognitive load and moderating sympathetic activity. It is a practical, non-invasive tool with strong evidence behind it.
The playlist
Part 1: Evening Descent
This brings together minimalist piano, ambient composition and low-stimulation sound design. British composers play a significant role, including Max Richter, Poppy Ackroyd, Michael Price and Isobel Waller-Bridge, whose track Alchemy offers a clear, structured anchor without adding unnecessary complexity.
The playlist is intended for background listening - during supper, while winding down after work, or in the last hour of digital activity. There is no narrative to follow; the music simply creates the right environmental conditions for the body to begin adjusting.
Part 2: Sleep onset
The second stage of Sleep 03 focuses on the moment the lights go out. This is the most delicate phase of the night, when the body is ready for rest but the mind is often still active.Part 3: Deep Night
The final stage of Sleep 03 is designed for the deepest part of the night, when sleep is at its most fragile. As the body moves through later sleep cycles, even small changes in sound can bring the mind back to the surface. The Deep Night playlist is built to avoid this, using long-form ambient recordings alongside slow British classical writing and restrained melodic lines chosen for warmth and continuity rather than expression. These are pieces that stay steady, remain unobtrusive and help reduce the small awakenings that often occur in the early hours.
Used consistently, this final stage helps create the quiet continuity that allows sleep to settle and stay settled.
