In the form of bulletin points some few authentic actions of sunnah are laid down

1. Sleeping with Wudoo (abulution)
The Prophet PBUH said to al-Baraa` bin ‘Aazib RA: If you go to your bed, then do your wudoo` (ablution) as you would do it for prayer, then lie on your right, [Bukhari]
2. Sleeping on the right side
The Prophet PBUH used to sleep on his right side, putting his right hand on his right cheek, and this is what the Prophet PBUH recommended others to do. According to a saheeh hadeeth narrated from al-Baraa’ ibn ‘Aazib, the Prophet PBUH said: “When you go to bed, do wudoo’ as if for prayer, then lie down on your right side…” [Bukhari]
3. Reciting Surat al-Ikhlas, an-Nas, and an-Naas Before Sleeping
‘Aishah RA narrated that the Messenger PBUH used to recite “Qulhuwallahu ahad”, “Qul a’oothu birrabilfalaq” and “Qul a’oothu birrabinnaas” every night when he went to sleep, then wiped his face and whatever he was able from his body, beginning with his head and face, and what faces him from his body, three times”. [Al-Bukhaari]
4. Doing Takbeer and Tasbeeh When Going to Sleep
‘Ali RA narrates that the Messenger of Allah PBUH said when Faatimah RA asked him for a servant, “Shall I not lead you to that which is better for you than a servant? If you go to your mattresses, or rest to sleep, then say Allahu Akbar thirty-four times, and say subhaan Allah thirty-three times, and say alhamdulilah thirty-three times, for they are better for you than having a servant”
5. Do Zikr while sleeping
Abu Hurairah RA reported: Messenger of Allah PBUH said, ”Whoever sits in a place where he does not remember Allah (SWT), he will suffer loss and incur displeasure of Allah; and whoever lies down (to sleep) in a place where he does not remember Allah, he will suffer sorrow and incur displeasure of Allah.” [Abu Dawud].
6. Making Du’a When Awoken from Sleep
‘Ubaadah bin as-Saamit RA narrates that the Prophet PBUH said: “Anyone awoken in the night and says: Laa ilaha illa Allah, wahdatu laa shareeka lah, lahul-mulku walahul hamd, wa huwa ‘ala kulli shay`in qadeer, alhamdulilah was-subhaan Allah, wallahu akbar, wa laa hawla wa laa quwata illa billah, then said, Allahumma aghfirli or invoked Allah, he will be answered, and if he does ablution and prays, his prayer will be accepted” [al-Bukhaari: 1154]