1. Patients with any uncontrolled and severe diseases which cause insomnia will be excluded. the diseases may include heart disease (like angina, cardiac arrhythmias, heart failure, myocardial infarction), pulmonary disease (COPD, asthma), gastrointestinal disorders (stomach or duodenal ulcers, reflux disease), neurologic disorders (seizures, spastic torticollis, blepharospasm, dystonias, parkinson's disease, alzheimer's disease, dementia, sleep-disruptive headaches), head trauma (blow to the head with loss of consciousness, concussion), pain disorders (fibrositis/fibromyalgia, arthritis, muscle cramps, chronic low back pain, headaches), endocrine and metabolic disorders (thyroid disease, diabetes), kidney disease (kidney failure with dialysis, kidney stones) autoimmune disorders, cancer, and HIV/AIDS.