My baby boy is now close to 6 weeks. The first couple of weeks he was confused with day and night i.e. he sleeps during the day and is awake at night. Thus, after 4 weeks he was able to differentiate between day and night. However, my concern is when my baby cries due to sleepiness, bored etc. I am expected to let him cry himself to sleep which i find sometimes work, but most of the time it doens't. I am sometimes pressured to leave him crying for over half an hour and it really hurts me to see and hear him crying so much.Is it alright for babies to be crying this much? Has anyone got any suggestions?