Sound machines may not be the sleep saviors many believe. Researchers found that pink noise significantly reduced REM sleep, while simple earplugs did a better job protecting deep, restorative sleep ...

For many people struggling to fall or stay asleep, sound machines have become a popular sleep aid. Broadband sounds promise to mask disturbing noises, “soothe” the brain, and help users drift off into ...

I tried Amazon's popular Big Red Rooster machine, a white noise machine for people who can't sleep. The sleep machine has over 22,000 five-star ratings, and this is my personal review.