Perhaps you constantly feel out of sync with your sleep patterns. Or maybe you find you\u2019re unable to fall asleep at night but are exhausted all day, every day. Either way, a lack of sleep can cause a major decrease in life satisfaction, so it\u2019s important to address the issue.\nDifficulty sleeping may be due to any number of common sleep disorders. However, there\u2019s a possibility you may have non-24, a circadian rhythm disorder.\nContact UPMC Sleep Medicine for more information. \nWhat Is Non-24?\nNon-24 is defined as a circadian rhythm disorder. So, what is a circadian rhythm sleep disorder?\nEssentially, your circadian rhythms are controlled by your body\u2019s internal clock, which helps you figure out when to sleep and wake up. For most people, their body clock runs on a 24-hour day cycle. For a person with non-24, however, that natural cycle may actually be a bit longer or shorter than 24 hours.\nAccording to the National Sleep Foundation, these extra minutes or hours can add up, eventually causing a noticeable change in the times when that person\u2019s body expects to sleep or wake up. A person with non-24 may want to sleep during the day and struggle to sleep at night because of a problem with circadian rhythm.\nNon-24 is often misidentified as a sleep disorder, but it\u2019s actually more about a person\u2019s circadian rhythm than sleep itself. Non-24 is due to an internal master clock that is \u201cset\u201d incorrectly as compared to the 24-hour night-day cycle.\nWhat Are the Symptoms of Non-24?\nIf you have non-24, you\u2019re likely to experience the following symptoms:\n\nYou have a profoundly hard time sleeping through the night.\nYou have a strong urge to sleep during the day.\nYou wake up groggy or feeling as if you didn\u2019t get enough rest.\nYour sleep patterns are different from most people you know.\nYou feel like you\u2019re in a never-ending battle between sleeplessness and exhaustion.\nThis battle has been ongoing for months, if not years.\n\nIf you\u2019re having these symptoms, you might be misdiagnosed as having a sleep disorder like insomnia. Make sure you tell your doctor exactly what\u2019s going on.\nWho Is Most Affected by Non-24?\nNon-24 is very common in people who are legally blind, as they may have little to no light perception. In fact, estimates say that more than 70 percent of blind people struggle with non-24; however, other people also live with non-24.\nCan Non-24 Be Treated?\nYes, there are several ways in which doctors treat non-24:\n\nSome patients benefit from phototherapy, or appropriately timed light exposure. This therapy can help reset your body\u2019s clock.\nOthers benefit from a drug called tasimelteon, approved by the Food and Drug Administration for the treatment of non-24. Tasimelteon helps your brain control the timing of your sleep-wake system.\nMelatonin is also used in some cases. Melatonin is a hormone produced by the pineal gland, and it\u2019s the body\u2019s biochemical signal of darkness.\n\nWhen Should You Talk to Your Doctor?\nYour history and symptoms will be the best indicator of when you should speak with a care provider. For most people, non-24 is chronic and doesn\u2019t occur suddenly. If you have a history of tremendous sleeplessness and exhaustion, are experiencing the above symptoms, or want to know more about circadian rhythm, talk to a doctor at UPMC.