Zzz's: Tips for Healthy Sleep Habits for Adolescent Mental Health. In the fast-paced, modern life, sleep often takes a backseat. Adolescents are going through many physical changes and the pressure of academics; they stay up late. We cannot overemphasize the importance of sleep for adolescent mental health. It is the peak of their physical, mental, and emotional development. They need sufficient rest to grow to their full potential.