It's not good to stay up late at night.
Every night I stay up later and later.
I'm not used to staying up late at night.
About how late are you awake?
Unfortunately, I have to get up early every morning.
I stay awake till late at night.
I am planning to be up until late today.
I've got to get up early every morning.
I'm accustomed to sitting up late.
You don't have to get up early.