To offer Nawafil (non-obligatory prayers) behind a sleeping woman

Narrated 'Aisha:

the wife of the Prophet, "I used to sleep in front of Allah's Apostle with my legs opposite his Qibla (facing him),
and whenever he prostrated, he pushed my feet and I withdrew them and whenever he stood, I stretched them." 'Aisha added, "In those days there were no lamps in the houses."

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، قَالَ أَخْبَرَنَا مَالِكٌ، عَنْ أَبِي النَّضْرِ، مَوْلَى عُمَرَ بْنِ عُبَيْدِ اللَّهِ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ عَائِشَةَ، زَوْجِ النَّبِيِّ ﷺ أَنَّهَا قَالَتْ كُنْتُ أَنَامُ بَيْنَ يَدَىْ رَسُولِ اللَّهِ ﷺ وَرِجْلاَىَ فِي قِبْلَتِهِ، فَإِذَا سَجَدَ غَمَزَنِي فَقَبَضْتُ رِجْلَىَّ، فَإِذَا قَامَ بَسَطْتُهُمَا. قَالَتْ وَالْبُيُوتُ يَوْمَئِذٍ لَيْسَ فِيهَا مَصَابِيحُ.