Having a case of the Mondays?

. - Having trouble getting up this morning?

There's a reason for that: It's called Sunday night insomnia.

A new study from the U.K. found Sunday night is the hardest night to get good sleep.

Researchers say there are a variety of things keeping those people up.

Concerns about a tough morning commute, worries about a morning meeting with progress reports, different sleep patterns on weekends, and for some, staying awake longer on purpose to avoid the inevitable, another long work week.

About one out of every four people lose sleep because of Sunday night anxiety, and that means you're extra tired on Monday.

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