Dua Before sleeping (going to bed) and after waking up

Narrated Hudhaifa (RA): When the Prophet (PBUH) went to bed, he would say

Bismika amutu wa ahya,

and when he got up he would say

 Al-hamdu lillahil-ladhi ahyana ba’da ma amaatana wa ilaihin-nushur.

                                            (Hadith No. 6312, Book of Invocations, Sahih Bukhari, Vol. 8).

 Narrated Aishah (RA): Whenever Allah’s Messenger (PBUH) went to bed, he used to blow on his hands while reciting Mu’awwidhat (i.e. Surah Al-Falaq, Chapter No. 113 and Surah An-Nas, Chapter No. 114 of Holy Qur’an) and then pass his hands over his body.