Patients may not report difficulty sleeping, because brief interruptions in sleep often go unremembered in the morning.

病人也许不会报告说他们有睡眠困难，因为睡眠中简短的停顿往往在早晨的时候就不记得了。

youdao

I had great difficulty getting off to sleep.

我很难入睡。

《牛津词典》

The first key to reducing stress is recognizing its symptoms, which include irritability, sadness, changes in sleep patterns, weight gain or loss, difficulty concentrating and restlessness.

释放压力的首要方法就是辨认出压力来自哪里，包括易怒，悲伤，睡眠规律的改变，体重的增减，难以集中精神和休息不足。

youdao

Insomnia is difficulty in getting to sleep, staying asleep or getting enough good quality sleep night after night.

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The most common sleep problems in children are difficulty falling asleep and staying asleep and overall insufficient shut-eye.

WSJ: More Children With Sleep Problems Seek Overnight Tests

Anxiety attacks, depression, sleep disorders, flashbacks, and difficulty trusting people are common symptoms of PTSD and of finding out a spouse is gay.

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