A: 行くなら、早く寝よう. B: Iku nara, hayaku neyou. B: Well, in that case, better get to bed early. 2. なら in sentences giving or seeking advice or recommendations. Because なら is often used in the sense of 'if you're thinking about X, then, Y', it is often used in sentences seeking or giving advice, recommendations or The なの that you're asking about is really just の. The な is only there if you use it after a noun or a na-adjective (きれい, 大変, 非常). The most common way of using this の is as a question marker. そうなの - Is it really? This is the same as そうなんですか but less formal. GgTNBt.