The Messenger of Allah (ﷺ) said to me: when you go to bed while you are in the state of purification, lay your head on your right hand. He then mentioned the rest of the tradition in a similar manner as above.
Reference: Sunan Abi Dawud 5047 In-book : Book 43, Hadith 275 English translation : Book 42, Hadith 5029
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