Make sure your baby is well fed and winded, then swaddle him and put him in bed on his back with his comforter beside him. Allow him to shout (cry) for a minimum of two minutes (time it from when he actually starts to cry, as he may stay quiet for a few minutes at first). The longer you can stay out the better for your baby as going in is more for your sake than your baby’s, and always time the period of crying as one minute may seem like ten to a parent.