Sometimes, there is a clear event that triggers the sleep disruption, like an injury with pain that is not controlled. Other times, sleep disruption can be a sign of an underlying condition or could be a sign of depression. Then, there are specific medical conditions, like sleep apnea, which can occur for years and years without recognition. People who are chronically sleep deprived are frequently irritable, forgetful, and unable to concentrate. Also, chronic sleep disturbance and sleep deprivation can lead to accidents, car wrecks.
Sleep deprivation is one very important cause of motor vehicle accidents.
Finally, some specific sleep disturbances, like sleep apnea, can cause heart and lung difficulties. If your doctor does not take your problem with sleep seriously, then ask for a referral. Sometimes, formal sleep evaluation is necessary. Another symptom is frequent uncontrollable falling asleep in the day or an inability to move with such an attack of sleep. Certainly, if anyone has had an accident from falling asleep, this should prompt further evaluation for sleep apnea or other specific sleep abnormality.