Why weren't the Jews allowed to leave their homes for three days in night Ellie Wiesel?

In Elie Wiesel's "Night," the Jews in Sighet were not allowed to leave their homes for three days as part of the oppressive measures imposed by the Nazis. This confinement was a precursor to their deportation to concentration camps, designed to isolate and control the Jewish population. It instilled fear and uncertainty, effectively breaking their spirits and disrupting their sense of normalcy before the horrific events that would follow.