Taking power-naps to recharge during night prayer

that the Messenger of Allah ﷺ said, "If anyone of you feels drowsy while praying he should go to bed until his slumber is over because in praying while drowsy one does not know whether one is asking for forgiveness or something for themselves."

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ: «إِذَا نَعَسَ أَحَدُكُمْ وَهُوَ يُصَلِّي فَلْيَرْقُدْ حَتَّى يَذْهَبَ عَنْهُ النَّوْمُ، فَإِنَّ أَحَدَكُمْ إِذَا صَلَّى وَهُوَ نَاعِسٌ لاَ يَدْرِي لَعَلَّهُ يَسْتَغْفِرُ فَيَسُبَّ نَفْسَهُ»

The Prophet ﷺ said, "If anyone of you feels drowsy while praying, he should sleep till he understands what he is saying (reciting).

عَنِ النَّبِيِّ ﷺ قَالَ إِذَا نَعَسَ أَحَدُكُمْ فِي الصَّلاَةِ فَلْيَنَمْ حَتَّى يَعْلَمَ مَا يَقْرَأُ