夢む遊ゆう病びょう

noun

sleepwalking; somnambulism

Medical term for sleepwalking. In everyday conversation, 夢遊病 is understood but 睡眠時遊行症 (すいみんじゆうこうしょう) is the more formal clinical term, and 寝ぼけて歩く or 夢遊状態 are sometimes used descriptively.

• 夢む遊ゆう病びょうの症しょう状じょうとして、夜よ中なかに無む意い識しきに歩あるき回まわることがあります。

  As a symptom of sleepwalking, one may wander around unconsciously at night.