Listening to music before sleep can generally improve sleep quality and reduce sleep latency, but it is not associated with increased REM sleep or worsened sleep efficiency.

Classical music, with its slow tempo and calming melodies, is often found to be effective in promoting sleep.

Music can influence sleep through various mechanisms, including altering brainwave activity, reducing stress and anxiety, and blocking out external noises, but it does not typically increase heart rate.

Music therapy is a form of therapy that uses music to address various health conditions, including sleep disorders.

Music is generally considered safe for sleep improvement, and there is no evidence to suggest that it increases the risk of sleepwalking.

The optimal volume level for listening to music before sleep is at a comfortable level that does not disturb sleep or cause discomfort.

Heavy metal music is not typically studied for its impact on sleep, as it is generally considered to be too stimulating and disruptive for sleep.

Musical oneirology refers to the phenomenon where music can influence the content and vividness of dreams.

Music can generally improve sleep quality and reduce sleep latency in children, but it is not associated with increased nightmares.

Music-induced relaxation refers to the use of music to promote relaxation and reduce stress, which can be beneficial for improving sleep quality.

The effectiveness of music for sleep improvement is generally not influenced by the age of the listener.

Musical entrainment refers to the phenomenon where music can influence the body's circadian rhythm and help to regulate the sleep-wake cycle.

Music can generally improve sleep quality and reduce sleep latency in older adults, but it is not associated with increased daytime sleepiness.

Music therapy for sleep disorders refers to the use of music to address and treat various sleep disorders.