are you doing it because of some sleep technique book? i read this book and it says to let your baby settle by himself. if he keeps crying after a few minutes, go back into his room again, put your hand at his chest and tell him 'settle down, mummy is here, it's time for bedtime' in a firm reassuring voice. and then to leave the room again. the book says not to go in too often or too early so as to avoid your child to think that if he cry, you will come in. it this will last a few days though and mummies need to push through.
i want to do this for my son.. but mother in law says too much crying he will get wind... =( so i've got no chance.