Noun, Suru verb, Intransitive verbsound sleep; good sleep; quiet sleep

Nounhypnosis

Noun, Suru verb, Intransitive verbhibernation; winter sleep; brumation; torpor

Noun, Noun which may take the genitive case particle 'no'sleeplessness; insomnia; wakefulness

Nounthe first sleep (of silkworms)