بِاسْمِكَ رَبِّي وَضَعْتُ جَنْبِيْ فَاغْفِرْ لِي ذَنْبِيْ
Pronunciation
Bismika Rabbi Wada`tu janbi, faghfir lee janbi
Meaning
O my Lord, I have slept in your name. You forgive my sins. Abdullah Ibn Amr (RA) said that the Prophet (ﷺ) used to say the above dua when he was lying in bed to sleep.
Source: Hasan (Shuaib al-Arnait). Musnad Ahmad: 6620
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset