Ah, well it does now look a lot more like a joke :-)
I have bad news for you. Getting a newborn to sleep is child's play. Try getting two 5ish year olds off to school in the morning. It's basically impossible!
Every morning, our 3-year-old wakes up and says, "I don't want to go to school!" Then when mom goes to pick him up from school, she can't get him to leave. Good times.
Before you do that, remember that they choose your retirement home.
My father deliberately didn't take those sort of photos for exactly this reason: he knew my mother would use them to humiliate my brother and I as we got older.
I imagine that faced with your first newborn, one might logically assume that there would be periods where the child slept leaving some time for other activities. In reality, the only "hobby" the new parent will want to engage under those conditions is getting some sleep.
In my experience newborns sleep a lot. For a breastfeeding mother it's pretty exhausting and requires a lot more sleep. And the nights can be pretty broken, not as broken as they will be over the next few years in general though!
EDIT it was a lot less like a joke originally. Apologies for the offense caused by missing that.