130. Best Islamic Dua Before Going to Bed Nightly
The Prophet (ﷺ) would place his right hand under his cheek when about to sleep and supplicate:
اَللَّهُمَّ قِنِي عَذَابَكَ يَوْمَ تَبْعَثُ عِبَادَكَ
اَللّٰهُمَّ قِنِيْ عَذَابَكَ يَوْمَ تَبْعَثُ عِبَادَكَ
Allaahumma qinee 'adhaabaka yawma tab'athu 'ibaadak
Translation
O Allah, protect me from Your punishment on the day Your servants are resurrected.