al-Aswad ibn Yazeed would complete [reading] the Qur.aan every two days during Ramadhaan, and he would sleep between maghrib and ‘ishaa. And in other than Ramadhaan, he would complete [reading] the Qur.aan every six days.
My grandfather, ‘Abdullaah ibn Muhayreez, would complete [reading the] Qur.aan every Jumu’ah; and [every night] we would prepare his bedding, and perhaps he did not sleep upon it.
Yahya ibn Waththaab read the entire Qur.aan to ‘Ubayd ibn Nudhaylah – a companion of ‘Alqamah, and with him he memorised an aayah every day.
Reference: Siyar A’laam an-Nubalaa – Volume 1, Page 443 ‘Abdullaah ibn ‘Amr narrated that the Messenger of Allaah (sal-Allaahu ‘alayhi wa sallam) said: «Take the Qur.aan from four; from: [‘Abdullaah] ibn Mas’ood, and Ubayy [ibn Ka’b], and Mu’aadh ibn Jabal, and Saalim Mowlaa Abi Hudhayfah»