A normal mom whose new baby sleeps through the night will wake up and rush to the baby's crib to see if they are okay.
Me, I wake and realize that C.S. has slept through the night and I wait a few minutes to go check on her because I know if something terrible has happened, it is now too late to stop it. I want a few more minutes of the life where she is probably alive. There's no point in rushing into a place where your heart is crushed into a million pieces again.
C.S. is fine this time, but I know there is no guarantee that it will always be that way.