The felt experience
You're exhausted. Your body is tired. But the moment you lie down, something switches on instead of off. The mind races, the body tenses, and sleep becomes something you chase rather than surrender to.
Insomnia isn't just about sleep. It's about a nervous system that doesn't feel safe enough to let go of vigilance.
What the body is doing
Sleep requires the nervous system to shift into a parasympathetic state: rest and digest. But when the body is carrying unresolved stress or tension, it maintains sympathetic activation even at night. Heart rate stays elevated. Muscles remain tense. The body is guarding when it should be resting.
What tends to help
Practices that help the nervous system downregulate genuinely, not just temporarily. TRE is well suited for sleep difficulties because it addresses the muscular tension and nervous system activation that keep the body in alert mode.
What TRE looks like for insomnia
Practising TRE in the evening, before bed, tends to produce a noticeable improvement in sleep quality. The tremoring releases the physical tension accumulated during the day, allowing the nervous system to shift into a state where sleep becomes possible.
Over time, the effect is cumulative. The body learns to release tension more readily, and the baseline level of activation drops. Falling asleep and staying asleep both become easier.