Medications:
1. Melatonin - 1 mg orally - 30 to 60 minutes before bedtime - For up to 2–4 weeks if non-pharmacological measures fail and insomnia is severe

Instructions:
- Take melatonin at the same time each night, 30 to 60 minutes before your desired bedtime.
- Use the lowest effective dose. Stop if not effective after 1–2 weeks.
- Keep a sleep diary to track bedtime, wake time, and sleep quality.

Precautions:
- Do not exceed the recommended dose.
- Watch for side effects such as headache, dizziness, nausea, or morning drowsiness.
- Avoid caffeine and screen use at least 1 hour before bedtime.
- Maintain regular sleep and wake times, and avoid late-night eating.