Sleep aids are pills and medical devices which enable a person suffering from sleep disorder to fall asleep. They are used for diagnosis and treatment of sleep disorders and sleep disturbances. Sleep disorders adversely affect human health and, in turn, drive demand for sleep aids. Major signs and symptoms of sleep disorders include irregular breathing or excessive daytime sleepiness, increased movement during sleep, and abnormal sleep behaviors. Sleep disorders have a severe effect on the neural efficiency of patients and may lead to accidents, poor health, relationship stress, and reduced productivity at work. Moreover, it can lead to various chronic diseases such as diabetes, cardiovascular diseases, obesity, and depression.