Books on how to reduce insomnia are many and diverse. Goodnight Mind for Teens: Skills to Help You Quiet Noisy Thoughts and Get the Sleep You Need by Colleen Carney focuses on helping adolescents get better sleep via science, mindfulness, and cognitive behavioral therapy (CBT) methods. It's fast-reading and — maybe, for some people who follow its suggestions for a few months — could be helpful. The ten "tips" are actually a good high-level outline of the approach:

1. Identify Your Sleep Problem with the Right Tool: The Sleep Tracker
2. Use Your Body Clock to Get Better Sleep and Feel Better During the Day
3. Wind Down Before Bed
4. Make a Plan for Managing Anxiety
5. Stay Awake During the Day by Addressing Sleepiness
6. Develop a Plan for Getting Out of Bed in the Morning
7. Develop a Plan to Feel More Alert During the Day
8. Manage Substances That Rob You of Deep Sleep
9. Think Like a Good Sleeper
10. Make a New Plan If Your Sleep Remains a Problem

... good steps for problem-solving in general!

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