Sayyiduna Anas (may Allah be pleased with him) narrates: When the Prophet (peace and blessings be upon him) intended to sleep, he would recite: 'Allahumma qini 'adhabaka yawma tab'athu 'ibadak' (O Allah, save me from Your punishment on the Day You resurrect Your servants).
Al-Bazzar recorded it, and its chain is hasan (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 17049