Quality sleep enhances health, and may protect against obesity, diabetes and depression. And the right sounds may help you sleep more soundly: A 2008 Hungarian study of college students with sleep problems found that those who listened to classical music for 45 minutes before bedtime for three weeks had better-quality sleep and fewer depression symptoms. (Listening to nothing or an audio book had no effect.) “No one can tell you, ‘listen to this music and it will help you fall asleep,’” notes Suzanne Hanser, Ed.D., chair of the music therapy department at Berklee College of Music in Boston. “But music that’s comforting and brings a deep sense of relaxation may help you wind down.” Experiment until you find the right sounds for you.