The Primary Dua Before Sleep
بِاسْمِكَ اللَّهُمَّ أَمُوتُ وَأَحْيَا
Transliteration
Bismika Allahumma amutu wa ahya
English Meaning
In Your name, O Allah, I die and I live.
Sahih al-Bukhari 6312
Sahih — Highly Authentic