White noise creates a tried-and-true masking effect that has helped people fall asleep faster for ages.
https://www.cnet.com/health/sleep/best-white-noise-machines/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e
https://www.cnet.com/health/sleep/best-white-noise-machines/?utm_source=dlvr.it&utm_medium=blogger#ftag=CAD590a51e