Everyone almost have had transient insomnia. Insomnia is the inability to fall asleep once in a while, or feeling tired every time you wake up. Insomnia that is chronic, lasts longer. As a matter of fact, insomnia is often a symptom of another condition rather than a condition of its own. If insomnia is caused by medical or psychological conditions, treatment will focus on those underlying conditions. Insomnia weakens the immune system, and also impacts upon your ability to think clearly and function well. Good quality sleep is crucial for a healthy body and mind and for emotional wellbeing. Some simple tips to overcome insomnia are as follows:

 * Avoid caffeine, nicotine and alcohol in the late afternoon and evening. Caffeine and nicotine can delay your sleep, and alcohol may interrupt your sleep later in the night.

* If you have trouble sleeping when you go to bed, don't nap during the day, since it affects your ability to sleep at night.
* Exercise regularly, but do so at least three hours before bed-time. A workout after that time may actually keep you awake because your body has not had a chance to cool down. Exercise should precede meals, not immediately follow them; the first promotes, the latter, unless moderate, obstructs digestion.

*Establish a regular, relaxing bedtime routine that will allow you to unwind and send a "signal" to your brain that it is time to sleep.

*Avoiding exposure to bright light before bedtime and taking a hot bath may help.
*Taking a warm bath or drinking a glass of warm milk (milk contains a chemical that is converted to a sleep-enhancing compound in the brain) before bedtime.

More assessment and treatment may be needed if these sleep habits are not working, immediately consult  your doctor.