Jābir ibn Abdullāh reports that the Messenger of Allah ﷺ would not sleep until He had recited Sūrah as-Sajdah (32) and Sūrah al-Mulk (67). Reference: Jami` at-Tirmidhi 2892 , Al-Adab al-Mufrad 1209, Sunan ad-Dārimī 3316 .