Does my newborn bub know the difference between day and night?

Yes, babies do know how to differentiate between day and night. It is due to they get used to the routine of the mother's while in womb. However, some babies do mix up day and night. If you are facing this problem, there are some tips on how to adjust baby's day and night confusion: http://sg.theasianparent.com/baby-sleep-help-my-baby-has-their-days-and-nights-reversed/ In the daytime, when baby is awake: -Dress him in daytime clothing to signal that it is a new day -Sing and play with him -Be social during feeds -Keep the home, including his bedroom light and bright -Don’t try to minimise daytime sounds, such as the radio, washing machine, and neighbourhoods noises -Gently wake him, should he nod off during feeds At nighttime, let your behaviour signal that it is time to sleep: -Be quiet during feeds -Keep the lights dim and the noise levels low -Put him in pyjamas to signal that it is time to sleep Here are some tips on how to make babies sleep: http://sg.theasianparent.com/how-to-make-babies-sleep/