人一生中有三分之一的时间是在睡眠中度过。睡得好，早起精神饱满；睡得不好，全天萎靡不振。
“睡得不好”也各有原因，用英语怎么表达？
1. sleep badly/not sleep well：to wake up often during the night, and not feel rested or
comfortable 易醒，感觉没休息好
例：
I’m sorry, I didn't sleep very well last
night, and it has put me in a bad mood.（抱歉，我昨晚没睡好，现在情绪不太好。）
They slept badly on the hard bamboo floor.（他们在硬质竹地板上睡，睡得不好。）
2. can't get to sleep: to be unable
to go to sleep, especially because of noise, worries, pain etc. （因为噪音、心事、疼痛等）无法入睡
例：
She couldn't get to sleep, what with all the
traffic and people in the street.（街面上车水马龙，人声鼎沸，她无法入睡。）（备注：''what with...''列举一些原因。）
3. not get much sleep: to sleep
badly and only for short periods, especially because of noise, worries, pain
etc.（因为噪音、心事、疼痛等）睡得不好、睡的时间不长
例：
The people next door are having a party, so
we probably won't get much sleep tonight.（隔壁在开派对，我们今晚可能没法好好睡了。）
She cried all night and I didn't get much
sleep either.（昨晚她整晚都在哭，我也一夜没睡好。）
4. be a light sleeper: to be someone
who is easily woken when there is any movement or noise觉很轻，睡得不死
例：
I'm a light sleeper, so I woke up as soon
as I heard him come in.（我觉很轻，一听见他进来的声音，我就醒了。）
5. not sleep a wink: not to sleep at
all during the night, especially because you are worried, angry, upset etc.（因为发愁、生气等）整晚都没睡
例：
I was so worried that I didn't sleep a wink
last night.（我愁死了，昨晚都没睡。）
hardly/barely sleep a wink
He hardly slept a wink all night, beside
himself with jealousy and anger.（他妒忌心怒气难以自已，几乎一夜没睡。）
6. lie awake: to be in bed unable to
sleep, especially because you are worried or excited（因为发愁、激动等）躺床上却睡不着
例：
I used to lie awake at night wondering what
had happened to her.（那时候，晚上我常常辗转反侧，想知道她到底发生了什么事。）
We lied awake, listening to our parents
arguing in the room below.（我们躺着没睡，听父母在楼下的争吵声。）
7. toss and turn: to keep changing
your position in bed because you are unable to sleep and do not feel
comfortable在床上翻来覆去睡不着
例：
Do you fall asleep as soon as your head
hits the pillow, or do you toss and turn for hours before dropping off?（你是一沾枕头就睡着呢？还是在床上翻来覆去好久才睡着？）
8. sleepless night: 一夜没睡
例：
After a sleepless night, she looked pale
and exhausted.（一夜没睡，她脸色苍白，疲惫不堪。）
Tom had spent a sleepless night on the
sofa.（汤姆在沙发上一夜没睡。）
9. restless night: 一夜没睡好
例：
I'd had quite a restless night, and
breakfast didn't look appetizing.（我昨晚没睡好，早餐也没胃口吃。）