I have terrible sleep at least a couple of nights a week. I’ll wake up grumpy, tired, and irritated. It’s an awful way to start my day. But by the time it’s bedtime, even though I know I should hit ...

The recommended amount of sleep for healthy adults is 7-9 hours, according to the National Institutes of Health. So why then, is it possible to feel better, more alert and refreshed after 7.5 hours ...

Your toddler climbs into bed with you again at 2:14 a.m. You’ve barely settled back into REM when your alarm goes off. And when you rate your mood in that sleep-tracking app? Meh, at best. According ...