I've noticed that the feeling of hunger only persists for a certain amount of time. If I'm preoccupied with something else or I can't eat while I have that feel

I've noticed that the feeling of hunger only persists for a certain amount of time. If I'm preoccupied with something else or I can't eat while I have that feeling then after a while it just goes away. I think sleep is long enough that it gets over that feeling of hunger and that's why I don't feel hungry when I wake up.