Changing even one of these bad habits can make a significant difference in how well you sleep and your overall well-being.. Sleeping more than nine hours per day and not feeling rested; Difficulty being fully awake after abruptly waking up; The extreme sleepiness occurs at least three times per week, for at least three months. Individuals with this disorder may have difficulty waking up in the morning, sometimes appearing groggy, confused or combative (often.