question #3 Sahih al-Bukhari 6310, Book 80, Hadith 7 : How did the Prophet (ﷺ) prepare for the morning prayer after performing night prayers?

The Prophet (ﷺ) used to pray eleven rak`at in the late part of the night, and when dawn appeared, he
would offer two rak`at and then lie on his right side till the Muadhdhin came to inform him (that the
morning prayer was due).