寝ねぼける

ichidan verb, intransitive verb

be half asleep; be drowsy; be not fully awake

Describes the state of being groggy or disoriented right after waking up, often leading to confused speech or actions.

• 朝あさ、寝ねぼけて歯はブラシで髪かみをとかそうとした。

  In the morning, still half asleep, I tried to comb my hair with my toothbrush.

• 寝ねぼけた声こえで「おはよう」と言いった。