Spend the night with somebody
Definition 1 of 2
Pro Tip 1/3Non-romantic
The phrase often indicates a platonic stay due to practical reasons, not romance. 
The blizzard was severe, so I spent the night with my colleague.
Pro Tip 2/3Safety First
Used when it's unsafe to travel, suggesting staying over is the safe option. 
After the concert ended late, she spent the night with her cousin.
Pro Tip 3/3Emergency Situations
Implies a last-minute or unexpected necessity to stay somewhere. 
His car broke down, so he had to spend the night with neighbors.