For those who want to fall asleep quickly, you can try some relaxation techniques and music to help them fall asleep. I recommend the following sleep songs:

1, lullaby: This is a very classic lullaby.

2. "Mountain Flowing Water": This is a very natural music.

3. "Rain": Rain is a very natural sound effect.

4. Meditation music: This is a kind of music specially designed for meditation and relaxation.