Think of a phrase or idiom containing the word "sleep".
"Don't lose sleep over it." This phrase means not to worry too much or become too anxious about something.
Below is an instruction that describes a task, write a response that appropriately completes the request.

### Instruction:
Think of a phrase or idiom containing the word "sleep".

### Response:
"Don't lose sleep over it." This phrase means not to worry too much or become too anxious about something.