Whoever recites Ayat al-Kursi before sleeping will have a guardian from Allah ov — Sleep Adhkar

يَسْتَتِرُ أَحَدُكُمْ بِآيَةِ الْكُرْسِيِّ فَإِنَّهُ لَنْ يَزَالَ عَلَيْهِ مِنَ اللَّهِ حَافِظٌ وَلَا يَقْرَبُهُ شَيْطَانٌ حَتَّى يُصْبِحَ

Transliteration: Ayatul-Kursee (Quran 2:255)

Translation: Whoever recites Ayat al-Kursi before sleeping will have a guardian from Allah over him and no devil will approach him until morning.