不寝の番

ねずのばん

sleepless vigil

不寝番

ねずばん ふしんばん

sleepless vigil, night watch, vigilance

夜の目も寝ず

よのめもねず

sitting up all night, staying up all night

火の番

ひのばん

night watch, fire watchman

寝

ね しん い ぬ

to lie down, to go to bed, to go to sleep

核の番人

かくのばんにん

nuclear watchdog (i.e. the IAEA)

いの一番

いのいちばん

first of all, first thing

番

ばん

(one's) turn

盗人の昼寝

ぬすびとのひるね

there's a reason behind every action; a burglar's midday nap (is taken so that he can rob people's houses in the night)

唐人の寝言

とうじんのねごと

gibberish

寝ゲロ

ねゲロ

vomitting while asleep, sleep-puking

空寝

そらね

feigned sleep, playing possum

寝袋

ねぶくろ

sleeping bag

旅寝

たびね

sleeping away from home, overnight stay when traveling

宵寝

よいね

going to bed early

共寝

ともね

sleeping together

横寝

よこね

sleeping on one's side, lying on one's side

楽寝

らくね

comfortable rest or sleep

寝坊

ねぼう

sleeping in late, oversleeping