He is sleeping poorly.
他睡不好。
He has difficulty in sleeping, inability to concentrate.
他不易入睡，也難集中精神。
It is usually hard for her to fall asleep when she goes to bed atnight.
她晚上就寢，很難入睡。
He wakes during the night or early morning and finds it difficult to fallasleep again.
他晚間或清早醒來後，再也不能入睡。
He has nightmares occasionally.
他有時做噩夢。
