Being lonely is a bigger hurdle to a good night's sleep for college students than too much time at a computer or other ... Arts is important because both insomnia and loneliness are serious ...

Sedentary work predicted insomnia sleep patterns, while nontraditional schedules, especially night work, predicted catch-up ...

But even if your device's bright light doesn't have a huge effect, spending your day on a computer won't prepare your body ...