lose sleep

lose sleep over someone or something

 and lose sleep about someone or something
Fig. to worry about someone or something a lot, sometimes when one should be sleeping. (Often used with any and the negative.) Yes, Kelly is in a little bit of trouble, but I'm not going to lose any sleep over her. Don't lose any sleep over the matter. I refuse to lose sleep about it.
See also: lose, over, sleep

lose sleep over

Worry about, as in It's too bad the experiment failed, but I'm not going to lose sleep over it. This expression, often put negatively, alludes to actual insomnia caused by anxiety. [First half of 1900s]
See also: lose, over, sleep

lose sleep

worry.
See also: lose, sleep
References in periodicals archive ?
Washington, June 19 ( ANI ): Men who lose sleep during the work week may be able to lower their risk of developing Type 2 diabetes by getting more hours of sleep, a new study has revealed.
Sometimes there are health conditions that cause people to lose sleep or to feel hyper.
Summary: Glee actor Matthew Morrison claims: "I get nominated for everything and never win", but insists he does not lose sleep over it.
That is what I lose sleep over, watching other teams lift trophies, because I want to be the one lifting trophies for this club.
ANDY Murray shrugged off the disappointment of a third grand slam final defeat and claimed he will not lose sleep if he ends his career without a major on his CV.
I'm not going to lose sleep over it, but I would have liked to have had a chance to defend the European crown this week," Westwood added.
Lose Sleep, Gain Weight: Another Piece of the Obesity Puzzle
Kilbane's preferred pick would be Greece next month but insists he won't lose sleep if Ireland draw France, Russia or Portugal.
I don t lose sleep over disappointments and rather look ahead to seize the next opportunity," Shakib said.
Americans were more likely than any other nationality to lose sleep through stress at work, with 30 percent citing it as the reason they wake up in the night.
People with irritable bowel syndrome who lose sleep at night due to restless leg syndrome (RLS) may be interested in preliminary results from the Washington University School of Medicine in St.
March 5 /PRNewswire/ -- You are probably going to lose sleep March 11.
But his manager vowed not to lose sleep over his uncertain future as his side prepare for their match at Northampton Town today.
Likewise, having more than four electronic devices in your bedroom is a sure way to lose sleep.
If you continue to lose sleep day after day, there's a noted decrease in alertness and performance.