If you often don't sleep well at night, and the next day I feel the need for a nap can energetic, may you have formed the bad sleep habits.
如果你常晚上睡不好，第二天感觉需要小睡一会才可以精力充沛，可能你已经养成了不良的睡眠习惯。
Some of the most recent research suggests that a bad night's sleep can stress the body as well as the mind.
一些最新研究表明，夜里睡不好会增加身心压力。
"Bad sleep" means unease sleep, having two meanings: can not lie on the back, and can't sleep well.
卧不安“即不安卧之谓，更含两重意义，不能平卧与虽卧不安两者皆属。”
He was so frightened by that bad news that he didn't sleep well for several nights on the trot.
他听到那条坏消息吓坏了，竟连续几个晚上睡不好觉。
He was so frightened by that bad news that he didn't sleep well for several nights on the trot.
他听到那条坏消息吓坏了，竟连续几个晚上睡不好觉。
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