Having trouble sleeping regularly? So are most of your peers-77% of them, according to the National Sleep Foundation. Insomnia is a serious issue amongst young people. In fact, the National Sleep Foundation found that college students are the demographic most affected by insomnia. This broad-based term simply means the inability to fall asleep, or to remain asleep, for an adequate length of time. Put most of the blame on the varying sleep schedules you keep on the weekends versus the weeknights. Technically, your body sleeps best when you go to bed and wake up at the same time every day, which is why college insomnia is worst on Sunday, the "catch-up" night. For the same reason, Wednesday night tends to be the best night for sound sleep across campus. School and socials stressors also take some of the blame for college insomnia, since most students have trouble separating sleep time from worry time. Whatever the reason, a repeat lack of sleep does nothing to bolster your everyday performance and mood, and can wear down your immune system. College insomniacs in the NSF study reported feeling generally irritable, angry, and foggy as they went about their days. They also experienced poor performance in class, a weakened sex drive, and/or an increase in colds, flu, and mono. As such, it's little wonder that many college insomniacs also deal with a depression or anxiety disorder. The good news is that even though insomnia is prevalent on campus, there are treatments that can help. So make an appointment at your campus health center to discuss ways you can start sleeping soundly.