寝つきがいい ねつきがいい Also written ねつきがよい, 寝付きが良い Meanings Expression, い-adjective falling asleep easily; finding it easy to fall asleep Antonym: 寝つきが悪い (ねつきがわるい). Kanji 寝 sleep. Read as ねる. Jinuma: Japanese Dictionary · Word lists