Sleep is one of the most familiar but at the same time one f the most unexplored phenomena of our life. Sleep is necessary to restore our body. While we sleep ‘hippocampus’-the area of the brain responsible for memory, assists to forget the unnecessary information accumulated throughout the day and helps to refresh new memories. Toshiaki Ojkuma from Kyushu University proves that less than 7 hours or more than 9 hours per night can lead to many health issues. The Royal Public Health(UK) offers recommendations like –Eat Light Dinner, Stay Off Of Smart phones  and Computers before going to Bed, no Caffeinated drinks before bed, Half an hour of good walk ...all these can be guideline to avoid Insomnia.