1. Express understanding and sympathy, and tell him that insomnia is a common problem that many people experience, so there is no need to be overly anxious.
2. It is recommended that he try some relaxation techniques, such as deep breathing, meditation, or hot baths, to help him relax both physically and mentally.
3. Encourage him to maintain a regular sleep routine, avoid excessive use of electronic devices before bedtime, and advise him to seek professional medical help if insomnia persists.