Build a house in Paradise by Reciting Surat Ikhlas: The Prophet (peace and blessings of Allah be upon him) said: “Whoever recites Qul huwa Allaahu ahad ten times, Allah will build for him a house in Paradise.” (Saheeh al-Jaami’ al-Sagheer, 6472).
Reciting Surah Ikhlas is Equivalent to one third of Qur’an: Abu Sa’eed al-Khudri (may Allah be pleased with him) said: “The Prophet (peace and blessings of Allah be upon him) said to his Companions: ‘Could any one of you not recite one third of the Qur’aan in one night?’ They found the idea too difficult and said: ‘Who among us could do that, O Messenger of Allah?’ He said, ‘Allaahu’l-ahad, al- samad [i.e., Soorat al-Ikhlaas] is one third of the Qur’aan.’” (Reported by Bukhari, 4628)
It’s Sunnah to Recite Surat al-Ikhlas before sleeping: Aa’isha (R.A) reported that when the Prophet (peace and blessings of Allah be upon him) went to bed, he would cup his hands together, blow into them and recite into them Qul huwa Allaahu ahad [Soorat al-Ikhlaas], Qul a’oodhu bi Rabbi’l-falaq [Soorat al-Falaq] and Qul a’oodhu bi Rabbi’l-naas [Soorat al-Naas] (these are the last 3 soorahs of the Qur’an). Then he would wipe as much of his body as he could with his hands, starting with his head and face, and the front of his body. He would do this three times. (Reported by al-Bukhaari, 4630)