 [ Symptoms ] how can i get my 4 month old to take naps during the day how long should he be eating at each feeding  my 4 month old used to sleep from 10pm to 6am occasionally waking around 4am before the time change he would eat every 1 12 hours to 2 hours during the day and would take a couple of long naps lasting anywhere from 1 to 3 hours now he falls asleep as soon as the sun goes down around 6pm here and sometimes wakes up as early as 2 am now if i get up and feed him he will wake every 2 hours for the rest of the morning and then will be up at sunrise for the day usually around 7am he rarely naps [ Disease ] it is a common side effect of the depo shot to not get a period at all you have been on it for awhile now so i would not be too concerned unless you were late getting the last shot when i was on the depo shot i hated it i had more pregnancy symptoms then when i was actually pregnant with both my sons