Question:
How can I protect myself from Satan during sleep?
Answer:
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him):
«إذا اٰويت إلى فراشك فأقرأ آية الكرسي فإنه لن يزال عليك من الله حافظ، ولا يقربك شيطان. فأخبرت رسول الله صلى الله عليه وسلم فقال: أما إنه صدقك وهو كذوب»
“Indeed, a devil said to him: When you go to your bed, recite Ayat al-Kursi; a guardian from Allah will be appointed over you and Satan will not come near you. I informed the Messenger of Allah ﷺ, and he said: ‘He has indeed told you the truth, though he is a liar.'”
Reference: Sahih al-Bukhari, Hadith number 3101