You’ve brushed your teeth and said good night to your roommate—or roommates. If you’re like most of us, the last thing you’ll do before closing your eyes is plug your phone into the charger by your bed and take one more scroll through Twitter, SnapChat, Instagram, or WeChat. 

But if you can change your ways and do that last check just a little earlier, before climbing into bed, it might make the difference between a good night’s sleep and a restless night.

Sanford Auerbach, a BU School of Medicine associate professor of neurology and director of the Boston Medical Center Sleep Disorders Center, has some smart advice on how to get a better night's sleep.