The Prophet ﷺ came to visit her when she was veiled, and said: use one fold and not two. Abu Dawud said: "Use one fold and not two" means: "Do not fold it like the turban of a man. Do not double it up manifolds."  

أَنَّ النَّبِيَّ ﷺ دَخَلَ عَلَيْهَا وَهِيَ تَخْتَمِرُ فَقَالَ لَيَّةً لاَ لَيَّتَيْنِ