人生最快意之事，莫如倦極時能痛快地倒頭便睡，同意吧？

●drowsy adj. 昏昏欲睡的
After a four-hour train ride, the drowsy boy flung himself into a chair and was soon sound asleep, and was hard to rouse.
坐了四小時火車，那男孩昏昏欲睡，一屁股坐在椅上，不消一會已熟睡，難以把他喚醒。

●doze n.（常指白天）小睡、打盹、打瞌睡
At first the student just dozed, then deepened into a sound sleep.
那學生最初只是打瞌睡。

  「（白天）打盹」的英文有好幾種說法，例如：snooze（n）、nap（n）、drop off 或 nod off。

●forty winks （尤指白天）小睡、打盹、打瞌睡
You look bleary-eyed. What you need most is forty winks.
你看來睡眼惺忪，你最需要的是小睡一下。

●not get a wink of sleep 或 not sleep a wink（只用於否定句中）一刻也睡不著
Worn-out from the day's unduly exacting drills, my mates were all sleeping like the dead when they slumped on the bed. But I couldn't even get a wink of sleep!
經過一天過度辛勞的操練，我的伙伴都筋疲力盡，重重倒在床上便即沉沉睡去，可我怎樣也不能成眠。

●the clock round 或 round the clock 日以繼夜地
Night shift workers get used to sleep the clock round on weekends.
輪夜班的工人，周末常不分晝夜地睡。

●toss and turn 翻來覆去
I'm a light sleeper and the sleepless nights are an ordeal for me-I keep tossing and turning in bed, having great trouble getting to sleep!
我很容易睡醒，失眠夜飽嘗折磨，我不斷在床上輾轉反側，極難入睡！