I love my baby yet I barely sleep 4 hours a night for the past 20 months !

I read all the wikiHow articles on this subject, including How to Put a Baby To Sleep (http://www.wikihow.com/Put-a-Baby-to-Sleep). I would suggest, you don't bother reading them yourself! I enjoy participating on that site but there was nothing useful in the articles to anyone of standard intelligence level. I expect you've tried white noise and baby massage already?

Thanks for the support ! I did find recently what causes my baby's light sleep : my baby is frightened to be alone at night.Now my baby sleeps next to me and I get to sleep 8-9 hours !

That's awesome you got it sorted. Lots of folk think it's better for babies to sleep in the same room as their parents so your solution probably has multiple benefits for you and your bundle of joy. (That's a bloody silly saying isn't it!)

Lol no saying is ''bloody silly'' when it comes to describe the joy of raising a baby!I've been criticized by friends and family because I came up with that solution but a phycician told me that a baby is highly demanding in terms of protection.This physician believes that human babies are still afraid of predators especialy at night,and according to him such fright is ancestral and somehow encrypted in the DNA.Well all I know is that we both sleep well and I'm now in shape to provide my baby the best care I can!