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.
Complete the following task based on the instruction and optional input provided.### Instruction:
Think of a phrase or idiom containing the word "sleep".

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