There are many possible reasons for sleeplessness including your sleeping habits lifestyle choices and medical conditions. Insomnia also known as sleeplessness is a sleep disorder in which people have trouble sleeping. 10 Negative Side Effects Of Sleep Deprivation Sleep Deprivation This information shows the various causes of sleeplessness and how common these diseases or conditions are in the general population this is not a direct indication as to how commonly these diseases are the actual cause of sleeplessness but gives a relative idea as to how frequent these diseases are seen overall. Causes of sleeplessness . Sleep problems are often categorized as trouble falling or staying asleep falling asleep at inappropriate times the need for too much sleep and abnormal behaviors during sleep. Emotional issues such as stress anxiety and depression cause half of all insomnia cases. 3 diseases that are very common. In order to properly treat and cure your insomnia you need to be...