Valerian for sleep — herbal sleep aid with mixed evidence. How it works, dosing, and limitations.

Magnesium for sleep — glycinate vs other forms, evidence, dosing, and complementary use with other interventions.

Melatonin for sleep — proper dosing, timing, what it actually helps with, and why high doses often less effective.

Jet lag treatment — melatonin timing, light exposure, sleep medications, and pre-travel preparation strategies.

Deep sleep (slow-wave sleep) — what it is, why it matters for physical restoration, memory, and how to optimize it.

REM sleep — rapid eye movement sleep, dreaming, brain function. Why REM matters and what affects it.

Sleep stages explained — N1, N2, N3 (deep sleep), and REM. What happens in each, and why all stages matter.

How much sleep do I need by age — adult, child, infant recommendations. Individual variation and signs of insufficient sleep.

How to fall asleep faster — evidence-based strategies for sleep onset, what doesn’t work, and when to consider CBT-I.

Sleep hygiene checklist — evidence-based practices for better sleep. Why hygiene alone often isn’t enough for chronic insomnia.