Insomnia is a very common problem lies in almost all person. In any part of our life, we encounter this problem, in someone it is temporary, or permanent in some person.
Here are "simple and easy to do" task which may help to treat insomnia(other than drugs

1) Go to sleep and rise at about the same time every day, including weekends. The mind and body rely on and adapt well to this consistent cycle.

2) Minimize stimulation. Keep the bedroom as dark as possible and minimize ambient noise (use earplugs if needed, turn off the TV or music).

3) Use the bed only for sleep or sex.

4) If you wake up in the middle of the night and can’t fall back to sleep within five minutes, leave the bed and go to another room or seat to read until sleepy.

5) Avoid meals at least three hours before sleep.

6) Don’t use alcohol as a sleep aid. Alcohol may help you fall asleep initially, but it distorts your sleep architecture and ultimately robs you of the refreshing process your brain needs.

7) Find a mantra to help you fall asleep. You’ve probably heard of “counting sheep.” However, a more functional and successful version is to think of non-stimulating topics that interest you, such as a song lyric or a movie plot. My favorite technique is based on mindfulness meditation: pay attention to the feeling, sound, and rhythm of your breathing and gently redirect your mind back to that each time it veers off to another thought.

Doing all of the above on a consistent and prolonged basis will significantly decrease the odds of having a sleep problem.

Courtesy to: Here