The document proposes an experiment to examine whether listening to preferred music can improve sleep quality. The experiment would involve 150 participants ages 15-25, who would have their sleep monitored via EEG for one week. The control group would receive no music, while the experimental group would listen to preferred music while sleeping. Sleep patterns, cognitive performance, and self-reported sleep quality would be measured and compared between groups. The expected results are that the experimental group would show decreased sleep latency, fewer awakenings, and improved self-reported sleep quality compared to the control group. The implications are that the study could provide evidence that music is a healthy, low-cost way to help those with sleep issues.