Health LibraryMental HealthSleep Hygiene: The Foundation of Mental Health
Mental Health

Sleep Hygiene: The Foundation of Mental Health

Fixing sleep is one of the highest-yield changes for mental wellbeing.

Medically reviewed
Updated 2026

The basics

Consistent sleep-wake times, morning light exposure, no caffeine after mid-day, cool dark bedroom, and screen limits before bed.

When to seek help

Persistent insomnia, loud snoring with daytime sleepiness (possible sleep apnea), or nightmares linked to trauma.

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Milli's Health Library provides general educational information reviewed against peer-reviewed medical sources. It is not a diagnosis, prescription, or medical advice. Milli does not recommend medications. Always consult a licensed doctor before starting, stopping or changing any treatment.

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