to stay the night in someone else's home.
If you don't want to drive home this late at night, you're welcome to sleep over.
Related vocabulary: stay over
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。