sit up with
Verb
Meaning
To stay awake past one's usual time in order to care for one or keep one company.
To remain with an individual through the night, especially with an ill or troubled person.
Source: en.wiktionary.orgVerb
To stay awake past one's usual time in order to care for one or keep one company.
To remain with an individual through the night, especially with an ill or troubled person.
Source: en.wiktionary.org