If you’ve ever spent hours tossing and turning without being able to fall asleep, you know how frustrating it can be. According to the American Academy of Sleep Medicine (AASM), about one in three people have at least mild insomnia, and about 70 percent of American adults report not sleeping enough at night. So, what’s keeping so many people up at night? There are hundreds of answers to that question, from common behaviors like drinking coffee too late in the...