Waking up in the middle of wee hours at night or facing troubles in re-initiating a sleep should not be neglected. Difficulties of sorts in getting a good sleep is a strong indication of a sleep disorder which must be immediately brought to the notice of a doctor. People with insomnia complain of poor concentration and retaining powers which dissuades them from progressing at their work. Such people often develop tendencies of making mistakes and errors in their work no matter how proficient they are at their job. They feel irritated, exhausted and agitated throughout the day without any one valid reason. One of the most common symptoms of insomnia is daytime fatigue and sleepiness throughout the day. This means that affected people feel like taking a nap, regardless of the time. They often sabotage their relationships with their friends or spouse due to their frequent mood swings. This also hampers their social life as they feel detached from the society they live in. In few people, their detached life becomes the main harbinger for inferiority complex.

Constant headaches and body aches are yet other common symptoms of this sleep disorder. In addition, most of the sufferers also experience lifelessness due to the choke of energy levels in the body.