1. Mention the name of Allah: “Bismillahir Rahmanir Raheem” and lie on your right side in accordance with the Prophet (sallallahu ‘alayhi wa sallam) ’s words to Al-Baraa bin Azeb: “If you want to go to bed, perform ablution as that for prayer, then lie down on your right side, and say: O Allah! I submit myself to You, and turn my face towards You, and confide my cause unto You, and take refuge in You, out of love and fear of You. There is no refuge or escape from You except in You. I believe in Your Book, which You have revealed and Your Prophet (sallallahu ‘alayhi wa sallam), whom You have sent as Messenger.” (Bukhari and Muslim)
2. “Do not sit late at night and do your best to sleep early unless there is some need or necessity. It is narrated that the Prophet (sallallahu ‘alayhi wa sallam) disliked sleeping before Isha’ (evening) Prayer and (sitting and) talking after it.” (Bukhari and Muslim)
3. Do not sleep on your belly, as this was prohibited by the Prophet (sallallahu ‘alayhi wa sallam): “Such manner of lying down is disliked by Allah.” (Abu Dawud)
4. Make sure there is nothing that hurts you at your bed, as recommended by the gracious The Prophet (sallallahu ‘alayhi wa sallam) : “When one of you goes to bed, he should clear his bed with part of his loincloth as he does not know what is lying inside after he has left it, and let him say”: Allahumma bika wada’tu janbi, wabika arfauh. Allahumma in amsakta nafsi faghfir laha, wa in arsaltaha fahfazha bima tahfazu bihi ibadakas-Salihan. (O Allah! With Your name I have lain on my side, and with Your name I raise it. O Allah! If You hold my soul (i.e. take my life), then have mercy on it, and if You return it, then protect it with what You protect Your pious servants) (Bukhari and Muslim)
5. Take care and ward off the sources of danger. The Prophet (sallallahu ‘alayhi wa sallam) said: “This fire is an enemy to you, so when you want to sleep put it off”. (Bukhari)