Sound machines might be making your sleep worse

Pink noise is commonly used to help people fall asleep, but new research suggests it may interfere with the most restorative stages of sleep. A study from the University of Pennsylvania Perelman School of Medicine, published in the journal Sleep, found that pink noise reduced REM sleep and disrupted overall sleep recovery. In contrast, wearing earplugs proved far more effective at protecting sleep from traffic noise.

1. Homepage
2. Science
3. Sound machines might be making your sleep worse