My 3 months old naps for half an hour only, never longer, and manages to stay awake for an hour to hour and half max, and it is not like he falls asleep easily, so it feels like I am all day just putting him to sleep
Tried to get him back to sleep every time he wakes up, and tried to forcefully stretch his wake time hoping he will sleep more, no luck
At nights he can manage 3-4 hours stretch with no problems
And with a demanding older 3 year old sister, life is become very difficult