101Dua’a: Dua’a for not getting afraid in sleep
According to Imam Jafar Sadiq (A.S) a person who gets afraid in sleep should recite the following ten times before going to bed.
Transliteration: LA-ILAHA ILLALAHO VAHDAHOO LA SHARIKA LAHOO YOHYI WA YOMEETO WA YOMEETO WA YOHYI WA HOVA HAYYOON LA YAMOOTO
There is no Lord except Allah; He is such a One Who has no partner and holds the power of the life and death of His creatures and Himself is such a Being Who never dies.
And should recite Tasbeeh of Hazrat Fatimah (A.S). It is quoted such that a person should also recite Ayatul Kursi and the Purity.
Source: duas.org
Other links:
101 Dua’a: Dua’a For great sawab and protection from major sins
101Dua’a: Dua’a for seeking forgiveness of sins (Dua’a in Sajdah)
101 Dua’a: Dua’a For safety from enemy
101 Dua’a: Dua’a For protection from Hell
101 Dua’a: Dua’a For all night Ibadat