I have sleep difficulty since my twenties.

我从二十多岁起，就有睡眠困难了。

youdao

THE DETAILS: a good next step is to arrange a consultation with your doctor to rule out any physical causes of your sleep difficulty.

具体方法：下一步最好先咨询你的医生，以排除任何引起失眠的身体方面的因素。

youdao

I had great difficulty getting off to sleep.

我很难入睡。

《牛津词典》

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

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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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