Findings aren't 100% conclusive, but there is positive research to back the possible sleep-promoting benefits of white noise. A 2017 study found that broadband sound (aka white noise) played at 46 ...

I KNOW THIS NEXT QUESTION IS GOING TO SOUND A LITTLE SILLY, BECAUSE ANYBODY WHO MIGHT SLEEP IN THE SAME ROOM ... AND THAT CAN BE SCARY AND EXCESSIVE. DAYTIME SLEEPINESS IS A PRETTY CLASSIC SYMPTOM ...