How do I see how much time my baby slept last night? April 07, 2017 23:49 Updated Follow To see the amount of time your baby slept last night, go to the Nights tab and view the Time Asleep metric. To learn more about how each sleep metric is formulated, click here. Related articles Nanit Camera App 101 What does the green animation mean? Edit your baby's Sleep Data/Summary My activity feed contains no moments What does it mean ‘baby is moving’?