Q: I found your column about the LectroFan micro wireless Bluetooth speaker/sleep sound machine quite interesting. I have been thinking about trying one of these devices, but I am looking for a more ...

Getting a good night’s sleep is hard. A third of all American adults report getting less than the daily recommended amount of sleep nearly every night. Too little noise, and the mind starts to race.

Whether they’re emitting natural white noise, the sound of a gently flowing brook, or bird song, sound machines can offer a calming effect and help many people drop off to sleep. Sound machines are ...