快眠 かいみん
kaimin

Noun
Suru Verb

1. pleasant sleep; good sleep; sleeping well

Intransitive
快便 かいべん快食 かいしょく快眠 かいみん健康 けんこうのしるし。
kaibin kaishokukaiminwa kenkōno shirushi.
A good appetite, sound sleep, and regular motions are the three signs of good health.