What does the idiom "not lose any sleep over sth" mean?

The phrase not lose any sleep over sth is often used in English, but what does this idiom mean? When idioms are used in the right situations, they strengthen communication and enrich the language. You can communicate more effectively by learning the meaning of not lose any sleep over sth.

Meaning of "not lose any sleep over sth"


The idiom 'not to lose any sleep over sth' refers to not worrying or losing sleep over something. It is a phrase that is popularly used to express that someone isn't overly concerned about the issue at hand. It is often used to tell someone not to stress over something, as it is considered a waste of time and energy.


The phrase has its origins in 17th century England where it was used to describe how a person would react when faced with a difficult situation. The expression was initially used as a way to encourage someone to remain calm and not to waste energy worrying. At this time, people believed that losing sleep would lead to physical and mental anguish.


This idiom is typically used in a colloquial setting, such as with friends or family members. It is often used in informal speech and writing as it is a phrase that is generally understood. It is also used in a variety of contexts and situations, including when someone is uncertain about the outcome of a decision or a situation. The phrase can also be used to encourage someone to remain calm and not to worry about something.

Example Sentences

  • "Don't lose any sleep over it, it's not worth worrying about."
  • "I know it's a difficult situation, but try not to lose any sleep over it."
  • "I'm not losing any sleep over this, it'll all work out in the end."
  • "I don't want to see you lose any sleep over this, let's figure out a way to fix it."

The meanings of the words in the "not lose any sleep over sth" idiom

The Surprising Origins of Everyday English Idioms

Many English idioms have surprisingly dark origins, often rooted in violence, death, and superstition. For instance, the phrase "raining cats and dogs" is said to have originated in the 17th century, when heavy rain would often cause dead animals to wash up on the streets. Meanwhile, the idiom "rule of thumb" is believed to have originated from a law that allowed men to beat their wives with a stick no thicker than their thumb.


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