各种“睡”：
nap: a short sleep 小睡
doze: nap, but usually easily awakened or partially alert, often unintentional 打瞌睡(通常指有些警觉、容易惊醒的状态，而且经常是无意中睡着的)
slumber: sleep, usually considered a deeper sleep 睡眠(书面语，相对而言睡得较熟)
siesta: a short sleep in the afternoon 午睡
表示“睡觉”的习语：
i dozed off in front of the television。
doze off: fall asleep unintentionally 无意中睡着
she could catnap anywhere, though this was sometimes embarrassing。
a cat nap: a short nap which can be anywhere, not necessarily in bed 小睡(可以在任何地方睡)
you look really tired. what time did you hit the sack last night?
hit the sack/hay: lie down to try to get to sleep 躺下睡觉
i think i'll stay home tonight and catch some z's。
catch some z's: get some sleep 睡觉
i'll just catch forty winks before getting ready for the party。
catch 40 winks: take a short nap 小睡
i was so excited last night - i didn't sleep a wink。
not sleep a wink: not sleep at all 完全没有睡着
joanna was so zonked out that she nodded off on the sofa。
zonked out: exhausted and feel like resting or going to sleep 精疲力竭而想要休息或睡觉
nod off: fall asleep, usually while sitting up 睡着(通常是坐着的状态下)
the guy in the hotel room next to me is really sawing logs tonight!
saw logs: snore loudly 打鼾
i think i'm going to turn in. see you in the morning。
turn in: go to bed 睡觉
you can crash at my place if you like。
crash: sleep somewhere for the night, usually when you did not plan to do this 在某处过夜(通常是计划之外)
john was out like a light, so i threw a blanket on him and turned out the light。
out like a light: in a deep sleep or unconscious 沉睡或失去意识