Yes … when they are in the bed waiting to fall asleep, they keep their eyes open even if it’s almost completely dark.They close their eyes just when they sleep.
It’s quite strange because we as adults we do exactly the opposite: closing eyes is quite pleasant. In fact we are told to do it even during the day: to have some rest, some relax.
I think the reason is INPUT: babies are hungry for input, they are programmed like that, that’s the way in which they grow up learning. On the contrary we are flooded with input .. and need to switch some input channels off (eyes!) to have some rest.
What do you think?