The article focuses two of the newer devices on the market, one using sound pulses and the other tiny electric pulses, to promote sleep.
From the article: The clock is ticking. You should have been asleep long ago. But instead, you’re lying in bed wide awake, wondering if you’ll ever doze off. New gadgets that target the brain promise to speed up the onset of sleep, improve the length and quality of rest, and even transition travelers to a different time zone before their planes touch down.For the last decade, neuroscientists have studied the modulation of brain waves in patients with dementia, Alzheimer’s disease or other neurological or mental-health conditions to improve sleep, memory and cognition.
