Sleep-related disorders
Specific sleep-related disorders can also make you go sleepless at night time. These sleep-related disorders include sleep apnea, restless legs syndrome, and periodic limb movement disorder. In sleep apnea, the breathing stops periodically in the night time, thus interrupting the sleep. However, in restless legs syndrome, the body gets unpleasant sensations in the legs and experience a desire to move the legs preventing you from going to sleep always. In the case of periodic limb movement disorder, a person tends to move his arms and legs, and he is doing it unknowingly, which deprives him of the sleep.