Can the 10-3-2-1 rule improve your sleep? Here's what science says

In the never-ending quest for better sleep, a viral but simple guideline, called the 10-3-2-1 sleep rule, is gaining popularity. But does it really work, or is it just another wellness fad? Heres a science-backed look at what it means, why experts find it useful, and where the research supports, or challenges, its claims.