123. The Best Authentic Islamic Before Sleep Dua
بِاسْمِكَ اَللَّهُمَّ أَمُوْتُ وَأَحْيَا
بِاسْمِكَ اَللّٰهُمَّ اَمُوْتُ وَاَحْيَا
Bismika Allaahumma 'amootu wa 'ahyaa
Translation
In Your name O Allah, I live and die.
Hudhayfah (RA) said, "If the Messenger of Allah (ﷺ) intended to sleep, he would recite this dhikr.”