寝

having difficulty falling asleep; unable to get to sleep

Usu. neg.

to get enough sleep

sleepyhead; oversleeper

Proverb

sleep brings up a child well; a well-slept child is a well-kept child

Jocular, humorous term

don't talk nonsense; sleep talk after you go to sleep

to get a crick in one's neck (while sleeping)

Proverb

good things come to those who wait

when one has just fallen asleep; moment just after falling asleep; time soon after falling asleep

sleeper train

owing a lot to someone; being indebted; never forgetting someone who has done a favour

of uneasy conscience

Idiomatic expression

to disturb the water; to wake a sleeping dog; to wake a sleeping child

nap

cuckolding (esp. in pornography); netorare; NTR

Adjective - yoi/ii class

falling asleep easily; finding it easy to fall asleep

Jocular, humorous term

don't talk nonsense; sleep talk after you go to sleep

to wake up

half-awake voice; sleepy voice; voice of when one has just woken up

to make sure someone is asleep; to listen for the breath of a sleeping person

to commit a wrongdoing while someone is sleeping

Adjective - yoi/ii class

falling asleep easily; finding it easy to fall asleep

treating bed hair

hair product for treating bed hair

to go to bed

sitting up all night; staying up all night

bedridden senior citizen