If you're waking up groggy, you could be among the 30 percent of Americans who are chronically sleep-deprived. Snooze more soundly with these tips from J. Todd Arnedt, Ph.D., a sleep researcher at the University of Michigan.
Power Down: Bright light from a computer or smartphone screen can suppress nighttime production of melatonin, a hormone that promotes sleep. About an hour before turning in, switch off gadgets and nonessential room lighting.
Skip the Soak: A hot bath raises the body's core temperature. If you crawl beneath the covers immediately afterward, you could end up sweaty and restless. Near bedtime, relax with a warm shower instead.
Stay on Schedule: People sleep best when they stick to regular bedtime and wake-up times. So no snoozing til noon on Saturdays. Aconsistent routine will give you sweeter dreams all week.