You have an inner scheduler, hardwired into you. Called the circadian clock, it helps you fall asleep each night and wake up the next morning.
But sometimes, your sleep cycle can get thrown off its normal rhythm. Ever worked a late shift, traveled between time zones, or stayed up all night with a fussy baby? Then you know how groggy and out-of-sorts you feel the next day.
Once you get out of step, it can be harder to fall asleep or wake up at the right times again.
Use these 10 tips to help get your ZZZs back on track.