Sūrat al-Layl is the ninety-second sūrah (chapter) of the Qur'an, containing twenty-one āyāt (verses). This sūrah is one of the first ten to be revealed in Mecca. It contrasts two types of people, the charitable and the miserly, and describes each of their characteristics.

The Virtue in Studying Surah Lail
On the virtue of this Surah, the holy Prophet (PEACE BE UPON HIM) is narrated to have said:

"He who recites it (Surah Lail) Allah awards him so much so that he is satisfied, and He protects him from toil, and makes (the path of his life) smooth for him.”

Surah Lail Benefits

Our Beloved Prophet Muhammad sallal laahu alaihi wasallam, said that the reward of reciting Sūrah Lail is so much that the one who recites it will be pleased when he sees it in his Book of Deeds. His inspiration of good deeds (Tawfiq) will also increase.
If recited Surah Lail 15 times before sleeping, one will dream about what pleases him most.
Another Surah Lail Benefits, if you recite it in the I’sha prayers, carries the reward of completing a quarter of the holy Qur’an and is guaranteed that the prayers are accepted.
If you recites Surah Lail would receive from Allah gifts and benefits which would please him very much; all his worries and hardships would disappear; Allah would make him self-sufficient and well-to-do.
If Surah Lail is recited in the ear of an unconscious person or an epileptic he would, inshallah, at once, become a normal man, regaining his senses.
Recite for inspiration of good deeds.