I cannot emphasise how important it was for me to use a movement monitor when my Son was a newborn! It resulted in me and my Wife getting some quality sleep (when we could!), knowing that we would be alerted to any issues during the night!
Infrared is awesome! Baby monitors are necessary. Why not combine both and get your self one of the best night vision baby monitors! We have 5 choices here, including a fantastic all rounder, a great expandable monitor, the best value for money and a truck load of reassuring features!