 But if you think you have an underlying sleep condition, it's best to see a sleep specialist. Michael Grandner, a psychologist and sleep researcher at the University of Arizona, says these are a few signs that you might be struggling with insomnia. If it takes you at least a half an hour to fall asleep, where you're struggling for more than a half an hour during the night, where you're waking up more than a half an hour before you want to start your day, and there's a struggle to sleep. You're not getting the sleep that you feel like you need.