Most of us know we’re not getting enough sleep at night. Busy schedules, the ever-present lure of mobile devices and TV screens, a noisy city out the window – all of those things conspire to keep us from getting to bed as early as we should or sleeping as late as we’d like to. But what happens when you get under the covers and you still just can’t fall asleep? We talk with Dr. Alice Hoagland from Rochester Regional Health System about insomnia: why it happens, what we’ve learned about it, and how to get it under control for a good night’s sleep.