Cortisol Reduction Frequencies – All-Night Sound Therapy cover art

Cortisol Reduction Frequencies – All-Night Sound Therapy

8 Hours of Continuous Sleep Sounds for Deep Relaxation, Restorative Sleep & Stress Relief

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Cortisol Reduction Frequencies – All-Night Sound Therapy

By: Yella A. Deeken
Narrated by: Richard Sullivan
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Auto-renews at $8.99/mo after 3 months. Offer ends 28 December, 2026. Cancel anytime.

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This Season's Biggest Deal | $0.99/mo for 3 months + $20 Audible bonus

Auto-renews at $8.99/mo. after 3 months - terms apply.
Summary

Cortisol Reduction Frequencies – 8 Hours of All-Night Sound Therapy for Deep, Restorative Sleep

When stress becomes chronic, cortisol — one of the body's primary stress hormones — can remain elevated or its natural daily rhythm can become disrupted. Prolonged stress is also associated with sleep disturbances, anxiety, mental fatigue, difficulty concentrating, and other effects throughout the body.

Research into brainwave entrainment and sound-based relaxation has explored how rhythmic auditory stimulation may influence brain activity and support states of relaxation.

Of particular interest are delta brainwaves, the slow-frequency patterns naturally associated with the deepest stages of non-REM sleep — a time when the body enters an important period of rest and recovery.

This 8-hour soundscape combines slow, carefully layered frequency patterns with a continuous, distraction-free acoustic environment designed to encourage deep relaxation and accompany the natural transition from wakefulness into sleep.

No narration.
No instructions.
No sudden changes.

Just eight hours of continuous sound created for quieter nights, deeper relaxation, and restorative sleep.

Press play. Lower the volume. Close your eyes. And let the night begin.

©2026 Simon & Lynen Medienproduktion UG (P)2026 Simon & Lynen Medienproduktion UG
Physical Illness & Disease Sleep Disorders
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