دُعَاءُ النَّوْم
Duʿāʾ an-Nawm — Supplication Before Sleeping
بِاسْمِكَ اللَّهُمَّ أَمُوتُ وَأَحْيَا
Bismika Allāhumma amūtu wa aḥyā.
In Your name, O Allah, I die and I live.
Hudhayfa reported: When the Prophet ﷺ intended to go to bed, he would say, 'In Your name, O Allah, I die and I live.' And when he woke up from his sleep, he would say, 'All praise is due to Allah who gave us life after He caused us to die, and to Him is the resurrection.'
Source: Ṣaḥīḥ al-Bukhārī 6324