Disorders associated with sleep have repercussions which are more than mere sleeplessness. They may include: mental and health ability, problematic relationships, accidents and a general feeling of being disconnected from the world. Basically, sleeplessness can primarily be caused by a common cold or a tight deadline that ought to be met. However, there are quite significant cases of sleeplessness that appear on a regular basis and can only be explained psychologically. Almost each individual experiences problems connected to sleep. Nonetheless, of fundamental importance is getting enough sleep in order to be attentive throughout the whole day and also attaining a feeling of refreshment. On the contrary, lack of enough sleep may make one lose concentration and feel foggy. Occasional sleep disorders include: Insomnia which affects almost each individual at some point in life, which in most cases is short-lasted inability to have enough quality sleep; sleep apnea a disorder in which one temporarily halts breathing or at times it gets shallow; snoring which results from the airway narrowing; Narcolepsy which is a disorder that results into extreme sleepless.