Dictionary / Vocabulary / 夢のまた夢
ゆめのまたゆめ
dream within a dream; (beyond) one's wildest dreams; entirely unrealizable dream; pie in the sky
Also written 夢の又夢
よほど具合が悪くなければ、昼間、横になるなんて夢のまた夢だ。
Until the day I become unwell, me lying down during the day is in your dreams.