Randy Jackson Jr, Jermajesty Jackson, Remi Alfalah, Prince, Katherine Jackson and Donte Jackson 2013

Michael Jackson's son Prince Michael II cries himself to sleep every night.

The late pop star's seven-year-old son - known as 'Blanket' - is so distraught about his father's death from acute Propofol intoxication on June 25 he constantly asks where his "daddy" is and sobs in his bedroom.

A Jackson family friend said: "He cries himself to sleep and keeps asking where his daddy is. His aunt Rebbie spent the first few nights sleeping on a cot letto beside him because he was scared to sleep alone. He acts pretty wild during the day."

Michael's three children - 12-year-old son Prince Michael I, 11-year-old...