Rock-a-bye baby

You’ve done all the obvious stuff—cut out late-night caffeine, made

sure your bedroom is dark and cozy, avoided scary movies or struggling

with your to-do list right before bed. So why are you still tossing and

turning? “Certain habits you’re unaware of could be sabotaging your

sleep,” says Kristen L. Knutson, PhD, assistant professor and sleep

specialist at the University of Chicago’s Department of Medicine.