Some teachers let their students sleep in class. Here's why mental health experts say this could be a red flag for a more serious mental health issue.

Experts say sleeping in class doesn't always stem from laziness and could even be a red flag for depression or something else.

To get back on track, experts recommend setting earlier bedtimes a week or two before the first day of school or gradually going to bed earlier each night.

Experts say sleeping in class doesn't always stem from laziness and could even be a red flag for depression or something else.