After the brushing put Vaseline on your lips! it's fine because your lips dry after brushing teeth. So after brushing your teeth, and before bedtime, so that it can act for the whole night !! And you have soft lips!
Unsalted butter works well for chapped lips.
If you're brushing teeth cleaned then very gently with your lips so you get soft lips and no sheets.
Chapped, rough lips; put a little honey on your lips, thick and leave for good. Not lick!