Al-Tabarsi states in Majma' Al-Bayan Book: The Messenger of Allah (Pbuhp) said: "He who recites Al-Lail Chapter, Allah will grant him till he is content, protect him from misfortune and ease every matter for him."
Khawas Al-Quran Book: The Messenger of Allah (Pbuhp) said: " He who recites Al-Lail Chapter, Allah will grant him till he is content, protect him from misfortune, ease every matter for him, and enrich him from His virtue. When one recites it fifteen times before he sleeps shall see what he loves of good in his dreams and shall not see evil in his dreams. Reciting it in The Night Prayer is equivalent to reciting one quarter of Quran in the prayer and the prayer is accepted."
Khawas Al-Quran Book: The Messenger of Allah (Pbuhp) said: "For he who recites this chapter Allah shall give him what he pleases till he is content. He shall never encounter misfortune and every matter will be eased for him by Allah. Reciting it twenty times before sleep makes one see every good in his dream and no evil at all. Reciting it in the night prayer is equivalent to reciting the entire Quran and his prayer is accepted."
Khawas Al-Quran Book: Imam Sadiq (Pbuh) said: "He who recites it fifteen times before sleep shall not see what he hates in his sleep and he shall sleep well and safe. Reciting it in the ear of an unconscious man awakens him directly."
Ibn Babawaih states in Thawab Al-A'amal Book: Moawia bin Ammar reported from Imam Abou Abdellah (Pbuh) that he said: "He who recites Al-Shams, Al-Lail, Al-Doha and Al-Inshirah Chapters frequently in a night or during a day, everything that was present with him will testify for him on Resurrection Day even his hair, skin, flesh, blood, veins, nerves and bones along with everything that the ground carried for him. Then Allah will say: "Your testimony for My servant is accepted. Take him to My heavens so that he chooses what he pleases and give it to him out of My mercy and virtue. Congratulations to my servant."