Many, many people have difficulty falling asleep or staying asleep. Research generally suggests that around a third of Americans have insomnia at any given time, and about 1 in 10 have chronic insomnia, lasting three months or longer.

Not getting adequate rest can affect mood (while depression can also contribute to insomnia), undermine motivation, increase irritability and make it difficult to just get through the day. “For those who take care of small children or have a lot of family and work responsibilities to balance,” the National Sleep Foundation notes, “insomnia can make these tasks feel even more overwhelming when you are tired.”

Read more at US News.