“When the Prophet (Allah bless him and give him peace) alighted for rest at night, he would recline on his right side, and when he alighted for rest shortly before the morning, he would raise his forearm and place his head on the palm of his hand.”
“When Allah’s Messenger (Allah bless him and give him peace) went to his mattress, he would say: ‘Praise be to Allah, who has fed us and quenched our thirst, and has sufficed us
and sheltered us, for how many there are without a provider of sufficiency and without a provider of shelter!'”
“Allah’s Messenger (Allah bless him and give him peace) slept until he gasped for breath, and he had gasped for breath while he was sleeping, so Bilal came to him and called him
to the ritual prayer, whereupon he got up and performed the ritual prayer, and he did not perform the minor ritual ablution. And there is a story behind this tradition."
"When Allah’s Messenger (Allah bless him and give him peace) went to his mattress each night, he joined the palms of his hands, then breathed into them and recited into them: “Say: ‘He is Allah, One !' (Al-Qur'an;114:1), Then he passed them over as much of his body as he could, beginning with his head and his face and the front of his body, doing that three times.”